ther other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other PC unknown Cold side ESP + SCR + Wet Scrubber other other other other other other other other other other other other other other PC unknown Cold side ESP + SCR + Wet Scrubber other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other other PC unknown Cold side ESP + SCR + Wet Scrubber other other other other other other stoker/ SPR dry Fabric Filter stoker/ SPR dry Fabric Filter wall dry Cold side ESP wall dry Cold side ESP wall dry Cold side ESP ExistingNOxControl Retrofit Code 1 Steam Injection Steam Injection Steam Injection Steam Injection Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only)

Fluidized Bed Combustor Steam Injection Fluidized Bed Combustor RET1 RET1 Low NOx Burner Technology ( Dry Bottom boilers only) SCR1 Low NOx Burner Technology with OFA ( Dry Bottom boilers only) SCR1 Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only)

Low NOx Burner Technology with Separated OFA ( Tangentially fired units only) Low NOx Burner Technology with Separated OFA ( Tangentially fired units only)

Dry Low NOx Burners ( Turbines only)

Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only) Ammonia Injection, Steam Injection Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only) Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only) Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only) Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only) Low NOx Burner Technology with Separated OFA ( Tangentially fired units only) Fluidized Bed Combustor Overfire Air Overfire Air Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology with Separated OFA ( Tangentially fired units only)

Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only)

RET3 Fluidized Bed Combustor RET3 Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only) SNR1 Steam Injection Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only) Steam Injection Other Other Other Other Fluidized Bed Combustor Steam Injection Steam Injection Fluidized Bed Combustor Other HG04 Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only)

RET2 RET2 RET2 RET2 RET2 Steam Injection Steam Injection Steam Injection Steam Injection Steam Injection Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only)

Steam Injection RET2 RET2 RET2 RET2 Overfire Air Overfire Air Overfire Air Low NOx Burner Technology ( Dry Bottom boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only)

Low NOx Burner Technology with Separated OFA ( Tangentially fired units only)

Low NOx Burner Technology ( Dry Bottom boilers only)

Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only) Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only), Overfire Air Low Excess Air Overfire Air Overfire Air Overfire Air Overfire Air RET3 Overfire Air Overfire Air Overfire Air Overfire Air RET3 Low NOx Burner Technology ( Dry Bottom boilers only)

Low NOx Burner Technology ( Dry Bottom boilers only)

Low Excess Air Low Excess Air Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Overfire Air Low NOx Burner Technology ( Dry Bottom boilers only)

Low NOx Burner Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only)

Low NOx Burner Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only) Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only) Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only) Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only) + Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only) + Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only)

Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only) Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only)

Low NOx Burner Technology ( Dry Bottom boilers only)

Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only) Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only)

Low NOx Burner Low NOx Burner SNR1 Low NOx Burner SNR1 Overfire Air & Low NOx Burner SNR1 Low NOx Burner Low NOx Burner Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only)

Dry Low NOx Burners ( Turbines only) Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only)

Overfire Air Overfire Air Overfire Air Low NOx Burner Technology ( Dry Bottom boilers only) Other Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) Other Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only)

Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) RET3 RET3 RET3 Low NOx Burner Low NOx Burner Low NOx Burner RET3 RET3 RET3 Flue Gas Recirculation RET3 Flue Gas Recirculation RET3 RET3 RET3 Flue Gas Recirculation & Low NOx Burner RET3 Low Excess Air RET3 Low NOx Burner RET3 RET3 RET3 RET3 RET3 RET3 RET3 RET3 RET3 RET3 RET3 RET3 RET3 RET3 RET3 RET3 RET3 RET3 RET3 RET3 RET3 Low Excess Air Overfire Air RET3 RET3 RET3 RET3 RET3 RET3 RET3 RET3 RET3 RET3 RET3 RET3 Low NOx Burner Technology ( Dry Bottom boilers only) RET3 Low NOx Burner Technology ( Dry Bottom boilers only) RET3 Low NOx Burner Technology ( Dry Bottom boilers only) RET3 Low NOx Burner Technology ( Dry Bottom boilers only) RET3 Low NOx Burner Technology ( Dry Bottom boilers only) RET3 Other RET3 Combustion Modification RET3 RET3 Overfire Air + Combustion Modification SCR2 Overfire Air + Combustion Modification SCR2 Low NOx Burner Low NOx Burner SNR1 Low NOx Burner Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only)

Low NOx Burner Technology ( Dry Bottom boilers only) SCR1 Low NOx Burner Technology ( Dry Bottom boilers only) SCR1 Overfire Air Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only) SCR1 Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only) SNR1 Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only) SCR1 Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only) SCR1 Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only) SCR1 Low NOx Burner RET3 Low NOx Burner RET3 Low NOx Burner RET3 Low NOx Burner Other RET3 Other RET3 Combustion Modification RET3 Combustion Modification RET3 RET3 RET3 Other Other Low NOx Burner Technology ( Dry Bottom boilers only)

Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only), Other OC03 Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only), Overfire Air RET3 Overfire Air Overfire Air Low NOx Burner Technology ( Dry Bottom boilers only), Overfire Air ML01 ML01 Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only) ML02 Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only) ML02 Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only) ML02 Low NOx Burner Technology ( Dry Bottom boilers only)

Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only) ML01 Low NOx Burner Technology ( Dry Bottom boilers only) OC03 Low Excess Air & Overfire Air RET3 Overfire Air Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only) Steam Injection RET3 RET3 Water Injection ( Turbines & Cyclone boilers only) RET3 RET3 Low NOx Burner Technology ( Dry Bottom boilers only) RET3 Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only) + Water Injection ( Turbines & Cyclone boilers only)

RET3 RET3 Low NOx Burner Technology with Separated OFA ( Tangentially fired units only) RET3 Low NOx Burner Technology with Separated OFA ( Tangentially fired units only) Low NOx Burner Technology with Separated OFA ( Tangentially fired units only) RET3 Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only)

RET3 RET3 RET3 RET3 Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only) Low NOx Burner Low NOx Burner Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only) Low NOx Burner Technology for Cell Burners Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only)

Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only)

RET3 RET3 RET3 RET3 Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) RET3 RET3 Low NOx Burner Technology for Cell Burners Low NOx Burner Technology for Cell Burners Low NOx Burner Technology for Cell Burners Low NOx Burner Technology for Cell Burners Overfire Air & Low NOx Burner Low NOx Burner Technology ( Dry Bottom boilers only)

Low NOx Burner Technology for Cell Burners Low NOx Burner Technology with Separated OFA ( Tangentially fired units only) Low NOx Burner Technology with Separated OFA ( Tangentially fired units only)

Low NOx Burner Technology with Separated OFA ( Tangentially fired units only)

Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only) Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only) Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Low NOx Burner Low NOx Burner Low Excess Air RET3 Combustion Modification Overfire Air Low NOx Burner Technology ( Dry Bottom boilers only)

Low NOx Burner Technology ( Dry Bottom boilers only)

Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Overfire Air RET3 RET3 Low NOx Burner Technology ( Dry Bottom boilers only) Combustion Modification RET3 RET3 RET3 Other Other Low NOx Burner Low NOx Burner Biased Firing ( alternate burners) Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only)

Low NOx Burner Low NOx Burner CC01 RET4 Low NOx Burner RET3 RET3 CC01 RET4 RET4 RET3 RET3 Low NOx Burner Technology ( Dry Bottom boilers only)

RET3 RET3 RET3 RET3 RET3 RET3 RET3 RET3 RET3 RET3 RET3 RET3 RET3 Low NOx Burner RET3 RET3 RET3 RET3 RET3 Dry Low NOx Burners ( Turbines only)

Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only)

RET3 RET3 RET3 RET3 RET3 RET3 RET3 RET3 RET3 RET3 Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only)

Dry Low NOx Burners ( Turbines only)

Overfire Air SCR2 SCR Other Other Other Other Other Other Overfire Air Overfire Air HNC1 Overfire Air SCR2 RET3 RET3 RET3 RET3 Overfire Air Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only) Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only) Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only) Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only)

Low NOx Burner Technology ( Dry Bottom boilers only)

Overfire Air SCR1 Overfire Air SCR1 Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only) Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only) Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only) Water Injection ( Turbines & Cyclone boilers only)

SCR2 Overfire Air SCR2 Low NOx Burner Technology ( Dry Bottom boilers only)

RET1 RET1 RET3 RET3 Low NOx Burner Technology ( Dry Bottom boilers only) RET3 RET3 RET3 RET3 RET3 RET1 RET1 RET1 RET1 RET1 RET1 Low NOx Burner Technology ( Dry Bottom boilers only) RET3 Overfire Air & Flue Gas Recirculation & Low Excess Air RET3 Low NOx Burner Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only)

Low NOx Burner Technology ( Dry Bottom boilers only)

Dry Low NOx Burners ( Turbines only) + Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) RET1 RET1 RET1 RET1 RET1 RET3 RET3 RET3 Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only) RET3 RET3 RET3 RET3 RET3 RET3 RET1 RET1 RET1 RET1 ML01 ML01 Low NOx Burner Low NOx Burner Low NOx Burner & Overfire Air Overfire Air Overfire Air RET3 RET3 RET3 Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only)

Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) RET3 RET3 Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only)

Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only)

SCR SCR SCR Water Injection ( Turbines & Cyclone boilers only), Other Water Injection ( Turbines & Cyclone boilers only) RET3 Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only) SCR1 RET3 RET3 RET3 RET3 Dry Low NOx Burners ( Turbines only) + Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only) + Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only) + Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only) + Water Injection ( Turbines & Cyclone boilers only) Other ML02 Other RET3 RET3 RET3 RET3 Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only) RET3 RET3 Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only) RET3 RET3 RET3 Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology for Cell Burners Low NOx Burner Technology for Cell Burners RET3 Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only) Overfire Air Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only) Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only)

RET3 RET3 RET3 RET3 RET3 RET3 RET3 RET3 Overfire Air Overfire Air Biased Firing ( alternate burners) Biased Firing ( alternate burners)

Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only) Biased Firing ( alternate burners) Biased Firing ( alternate burners) Overfire Air Overfire Air Low NOx Burner & Biased Firing ( alternate burners) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Biased Firing ( alternate burners) Biased Firing ( alternate burners) Biased Firing ( alternate burners) Biased Firing ( alternate burners)

Combustion Modification RET3 Overfire Air RET3 Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only)

Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only)

Overfire Air Overfire Air RET3 Overfire Air RET3 Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Overfire Air RET3 Overfire Air RET3 Overfire Air RET3 Overfire Air OC03 Water Injection ( Turbines & Cyclone boilers only) Overfire Air RET3 Overfire Air RET3 Water Injection ( Turbines & Cyclone boilers only)

Water Injection ( Turbines & Cyclone boilers only)

Overfire Air Overfire Air Overfire Air Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only) Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only)

RET3 RET3 RET3 RET3 Low NOx Burner Technology with Separated OFA ( Tangentially fired units only) Low NOx Burner Technology with Separated OFA ( Tangentially fired units only)

Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only) Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only) Low NOx Burner Technology with Separated OFA ( Tangentially fired units only) Low NOx Burner Technology with Separated OFA ( Tangentially fired units only)

RET3 RET3 Overfire Air & Low NOx Burner & Flue Gas Recirculation RET3 Overfire Air & Low NOx Burner & Flue Gas Recirculation RET3 Overfire Air RET3 Overfire Air Low NOx Burner Technology ( Dry Bottom boilers only), Overfire Air SCR1 Low NOx Burner Technology ( Dry Bottom boilers only) SCR1 Low NOx Burner Technology ( Dry Bottom boilers only) SCR1 Low NOx Burner Technology ( Dry Bottom boilers only) SCR1 Low NOx Burner Technology with Separated OFA ( Tangentially fired units only)

OC03 OC03 Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only) RET3 Overfire Air RET3 Low NOx Burner RET3 Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only) Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only)

Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only) Low NOx Burner Technology with Separated OFA ( Tangentially fired units only) Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only)

Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) Water Injection ( Turbines & Cyclone boilers only)

Low NOx Burner Technology ( Dry Bottom boilers only) ML01 Low NOx Burner Technology ( Dry Bottom boilers only), Overfire Air RL01 Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Other ML01 Other ML01 Other Combustion Modification SNR1 Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only) RL01 Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Flue Gas Recirculation & Low Excess Air RET3 Flue Gas Recirculation & Low Excess Air RET3 Flue Gas Recirculation & Low Excess Air RET3 Low Excess Air RET3 Low NOx Burner Technology ( Dry Bottom boilers only) OC03 Low NOx Burner Technology ( Dry Bottom boilers only) OC03 Flue Gas Recirculation & Low Excess Air RET3 Low NOx Burner Technology ( Dry Bottom boilers only), Overfire Air Low NOx Burner Technology with Separated OFA ( Tangentially fired units only), Overfire Air RD01 Low NOx Burner Technology ( Dry Bottom boilers only), Overfire Air ML02 Low NOx Burner Technology ( Dry Bottom boilers only), Overfire Air ML02 Low NOx Burner Technology ( Dry Bottom boilers only), Overfire Air Low NOx Burner Technology ( Dry Bottom boilers only), Overfire Air Other SNR1 Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner & Low Excess Air & Overfire Air SCR2 Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) Other Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only) SCR1 Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only) SCR1 Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only) RL01 Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only) SCR1 Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only) RL01 Low Excess Air SNR1 Low Excess Air SNR1 Low Excess Air SNR1 Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only) RL01 Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only) RL01 SNR1 SNR1 Combustion Modification SNR1 Combustion Modification SNR1 Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only) LD02 SNR1 SNR1 Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only) SCR1 Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only) SCR1 Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only) SCR1 Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only) SCR1 Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only) LD01 RET3 Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only) RL01 Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only), Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only) SNR1 Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only) SNR1 Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only) RL01 Low NOx Burner Technology ( Dry Bottom boilers only)

Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology with Separated OFA ( Tangentially fired units only) Low NOx Burner Technology for Cell Burners Low NOx Burner Technology for Cell Burners Low NOx Burner Technology ( Dry Bottom boilers only)

Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only) Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only)

Low NOx Burner Technology for Cell Burners Low NOx Burner Technology ( Dry Bottom boilers only)

Low NOx Burner Technology with Separated OFA ( Tangentially fired units only)

Low NOx Burner Technology with Separated OFA ( Tangentially fired units only) Low NOx Burner Technology with Separated OFA ( Tangentially fired units only) Low NOx Burner Technology with Separated OFA ( Tangentially fired units only) Low NOx Burner Technology with Separated OFA ( Tangentially fired units only)

Low NOx Burner Technology ( Dry Bottom boilers only) SCR1 Other SCR1 Overfire Air Overfire Air Low NOx Burner Technology ( Dry Bottom boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only) + Water Injection ( Turbines & Cyclone boilers only)

Low NOx Burner Technology for Cell Burners Low NOx Burner Technology for Cell Burners Low NOx Burner Technology for Cell Burners Low NOx Burner Technology for Cell Burners Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only)

Other Low NOx Burner Technology ( Dry Bottom boilers only) SCR2 Low NOx Burner Technology ( Dry Bottom boilers only)

Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only) SCR2 Low NOx Burner Technology ( Dry Bottom boilers only) SCR1 Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only) Low NOx Burner Technology for Cell Burners Dry Low NOx Burners ( Turbines only), Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only), Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only), Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only), Water Injection ( Turbines & Cyclone boilers only) Dry Low NOx Burners ( Turbines only), Water Injection ( Turbines & Cyclone boilers only) Overfire Air SCR2 Overfire Air SCR2 Overfire Air SCR2 Overfire Air SCR2 Low NOx Burner Technology for Cell Burners Overfire Air Overfire Air Overfire Air Overfire Air Overfire Air Low NOx Burner & Overfire Air Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only)

Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only) Overfire Air Overfire Air Overfire Air Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only) Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only)

RET3 Overfire Air Overfire Air Low NOx Burner Low NOx Burner Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only) Low NOx Burner Technology with Separated OFA ( Tangentially fired units only) Low NOx Burner Technology with Separated OFA ( Tangentially fired units only)

Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only)

RET3 RET3 RET3 RET3 Other Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only) Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only)

RET1 RET1 Water Injection ( Turbines & Cyclone boilers only) Combustion Modification Combustion Modification Combustion Modification Combustion Modification Overfire Air & Flue Gas Recirculation Overfire Air & Flue Gas Recirculation Low Excess Air & Overfire Air Overfire Air & Low Excess Air Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only) Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only)

Dry Low NOx Burners ( Turbines only), Water Injection ( Turbines & Cyclone boilers only)

Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only) Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only) Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only) Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only) Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only)

Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only) Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only) Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) SNR1 Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only) Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only)

Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only) Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only)

Low NOx Burner & Overfire Air Low NOx Burner & Overfire Air Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only)

Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only) Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only) Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only)

Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only) Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only)

Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only) Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only) Overfire Air & Flue Gas Recirculation RET3 Overfire Air & Flue Gas Recirculation RET3 Flue Gas Recirculation RET3 Flue Gas Recirculation RET3 Low NOx Burner & Flue Gas Recirculation RET3 Low NOx Burner & Flue Gas Recirculation RET3 Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only) Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only) Low NOx Burner & Overfire Air Overfire Air Low Excess Air & Low NOx Burner Low Excess Air & Low NOx Burner Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only) Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only) Other Other Low Excess Air & Low NOx Burner Low Excess Air Water Injection ( Turbines & Cyclone boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology for Cell Burners Low NOx Burner Technology for Cell Burners SCR1 Low NOx Burner Technology for Cell Burners SCR1 Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only) Dry Low NOx Burners ( Turbines only) + Steam Injection Dry Low NOx Burners ( Turbines only) + Steam Injection Dry Low NOx Burners ( Turbines only) + Steam Injection Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only)

Combustion Modification Combustion Modification Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only)

Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only) Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only) Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only)

Water Injection ( Turbines & Cyclone boilers only)

Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only) Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only) Overfire Air RET3 Overfire Air RET3 Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only)

Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only)

Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only)

Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only)

RET3 RET3 Flue Gas Recirculation OC03 Flue Gas Recirculation & Biased Firing ( alternate burners) RET3 Overfire Air RET3 Overfire Air RET3 Low Excess Air & Flue Gas Recirculation RET3 Low Excess Air & Flue Gas Recirculation RET3 Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Low NOx Burner Technology ( Dry Bottom boilers only) SNR1 Low NOx Burner Technology ( Dry Bottom boilers only)

RET1 RET1 RET1 RET1 RET1 RET1 RET1 RET1 RET1 Water Injection ( Turbines & Cyclone boilers only)

RET3 RET3 Overfire Air Overfire Air Overfire Air Other Low NOx Burner Technology for Cell Burners Low NOx Burner Technology for Cell Burners Low NOx Burner Technology with Separated OFA ( Tangentially fired units only) Low NOx Burner Technology with Separated OFA ( Tangentially fired units only) Low NOx Burner Technology with Separated OFA ( Tangentially fired units only) Low NOx Burner Technology with Separated OFA ( Tangentially fired units only)

Low NOx Burner Technology with Separated OFA ( Tangentially fired units only) SNR1 Low NOx Burner Technology with Separated OFA ( Tangentially fired units only) SNR1 Low NOx Burner Technology with Separated OFA ( Tangentially fired units only) SNR1 Low NOx Burner Technology with Separated OFA ( Tangentially fired units only) SNR1 Other Low NOx Burner Technology ( Dry Bottom boilers only) SNR1 Other Other Other Other Other Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) SNR1 Other Other Other Other Low NOx Burner Technology with Separated OFA ( Tangentially fired units only) Low NOx Burner Technology with Separated OFA ( Tangentially fired units only) Low NOx Burner Technology with Separated OFA ( Tangentially fired units only) Low NOx Burner Technology with Separated OFA ( Tangentially fired units only) Other SNR1 RET3 RET3 Flue Gas Recirculation RET3 RET3 RET3 Flue Gas Recirculation & Low NOx Burner Biased Firing ( alternate burners)

Combustion Modification RET3 Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only) RET3 RET3 RET3 Low NOx Burner Technology ( Dry Bottom boilers only) RET3 Low NOx Burner Technology ( Dry Bottom boilers only) RET3 Low NOx Burner Combustion Modification RET3 Combustion Modification RET3 Combustion Modification, Overfire Air RET3 Combustion Modification RET3 Low NOx Burner Technology ( Dry Bottom boilers only) RET3 Low NOx Burner Technology ( Dry Bottom boilers only) RET3 RET3 RET3 RET3 Low Excess Air RET3 Low Excess Air RET3 Low Excess Air & Biased Firing ( alternate burners) RET3 Low Excess Air & Biased Firing ( alternate burners) RET3 Low NOx Burner Technology with Separated OFA ( Tangentially fired units only) RET3 Combustion Modification RET3 Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only) Other Overfire Air & Flue Gas Recirculation Other SCN1 Other RET3 Other RET3 Other Other Overfire Air Flue Gas Recirculation & Overfire Air Overfire Air RET3 Overfire Air RET3 Overfire Air RET3 Overfire Air RET3 Overfire Air RET3 Overfire Air RET3 Overfire Air RET3 Overfire Air RET3 Overfire Air SCO1 Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only) Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only) Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only) Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only)

Overfire Air RET3 RET3 RET3 Other Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only)

RET3 Combustion Modification RET3 Low NOx Burner Technology ( Dry Bottom boilers only) RET3 Low NOx Burner Technology ( Dry Bottom boilers only) RET3 RET3 RET3 Combustion Modification RET3 Combustion Modification Overfire Air Overfire Air RET3 RET3 Combustion Modification RET3 Flue Gas Recirculation Low NOx Burner & Overfire Air Low NOx Burner & Overfire Air Low NOx Burner & Flue Gas Recirculation Low NOx Burner & Flue Gas Recirculation Combustion Modification RET3 RET3 Low NOx Burner Low NOx Burner & Flue Gas Recirculation & Overfire Air Low NOx Burner & Overfire Air RET3 RET3 RET3 RET3 RET3 RET3 RET3 RET3 Low NOx Burner Technology ( Dry Bottom boilers only)

Low Excess Air Flue Gas Recirculation & Low Excess Air Combustion Modification Combustion Modification Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only)

RET3 RET3 RET3 Dry Low NOx Burners ( Turbines only) Biased Firing ( alternate burners) & Flue Gas Recirculation RET3 Biased Firing ( alternate burners) & Flue Gas Recirculation RET3 Flue Gas Recirculation RET3 Flue Gas Recirculation RET3 RET3 RET3 RET3 RET3 RET3 RET3 Overfire Air Overfire Air Low NOx Burner Technology with Separated OFA ( Tangentially fired units only) RET3 Dry Low NOx Burners ( Turbines only) RET3 RET3 Overfire Air Overfire Air Combustion Modification, Overfire Air RET3 RET3 Overfire Air Overfire Air Overfire Air RET3 RET3 Flue Gas Recirculation Combustion Modification Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) RET3 RET3 RET3 RET3 Low NOx Burner Technology ( Dry Bottom boilers only) RET3 Low NOx Burner Technology ( Dry Bottom boilers only) RET3 RET3 RET1 RET1 RET1 RET1 RET1 RET1 RET1 RET1 RET1 RET1 RET1 RET1 RET1 RET1 RET1 RET1 RET1 RET1 RET1 RET3 Low NOx Burner Technology ( Dry Bottom boilers only) RET3 Other RET3 Low NOx Burner Technology ( Dry Bottom boilers only) SCR1 Low NOx Burner Technology ( Dry Bottom boilers only) SCR1 Low NOx Burner Technology ( Dry Bottom boilers only) SCR1 Other Other Low NOx Burner Technology ( Dry Bottom boilers only) SCR1 Combustion Modification Combustion Modification Combustion Modification Combustion Modification Combustion Modification Low NOx Burner Technology ( Dry Bottom boilers only)

Other Low NOx Burner Technology with Separated OFA ( Tangentially fired units only) Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only) LO01 Steam Injection Other Other Low NOx Burner Technology ( Dry Bottom boilers only)

Other Low NOx Burner Technology with Separated OFA ( Tangentially fired units only) Low NOx Burner Technology with Separated OFA ( Tangentially fired units only) Other Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only) Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only) Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only) Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only)

RET1 RET1 RET3 RET3 RET1 RET1 Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology for Cell Burners Low NOx Burner Technology ( Dry Bottom boilers only) SNR1 Low NOx Burner Technology ( Dry Bottom boilers only) SNR1 Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) SNR1 Low NOx Burner Technology ( Dry Bottom boilers only) SNR1 Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only) Low NOx Burner & Overfire Air Low NOx Burner & Overfire Air Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) SNR1 SNR1 SNR1 Overfire Air SCR2 Overfire Air SCR2 Overfire Air SCR2 Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only) Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only) Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only) SCR2 SCR Low NOx Burner Low NOx Burner Flue Gas Recirculation RET3 Flue Gas Recirculation OC03 Overfire Air RET3 Flue Gas Recirculation RET3 Flue Gas Recirculation OC03 Flue Gas Recirculation OC03 RET3 RET3 RET3 OC03 Overfire Air OC03 Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only), Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only) Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only)

Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only)

Overfire Air Overfire Air Low NOx Burner Technology ( Dry Bottom boilers only)

Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only)

Water Injection ( Turbines & Cyclone boilers only) Combustion Modification Overfire Air Biased Firing ( alternate burners) & Low Excess Air RET3 Biased Firing ( alternate burners) & Low Excess Air RET3 Fluidized Bed Combustor Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only)

Low Excess Air Low NOx Burner Technology with Separated OFA ( Tangentially fired units only) RET3 RET3 RET1 RET1 RET1 RET1 Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only) RET3 RET3 RET3 RET3 RET3 Other RET3 RET1 RET1 RET1 RET1 RET1 RET1 RET1 Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only)

Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only) Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only) Overfire Air Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only) Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only) RET1 RET1 Low NOx Burner Technology ( Dry Bottom boilers only) SNR1 Low NOx Burner Technology ( Dry Bottom boilers only) SNR1 Low NOx Burner Technology ( Dry Bottom boilers only) SNR1 Low NOx Burner Technology ( Dry Bottom boilers only) SNR1 Low NOx Burner Technology ( Dry Bottom boilers only)

Overfire Air RET1 Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only) RET1 RET3 RET3 RET3 RET1 RET1 RET1 RET1 RET1 RET1 Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) RET3 RET3 RET3 Flue Gas Recirculation Flue Gas Recirculation Overfire Air Overfire Air & Low NOx Burner Overfire Air & Low NOx Burner Other Other Other RET1 RET1 RET1 RET1 RET1 RET1 RET1 Other SNR1 SNR1 Low NOx Burner Technology ( Dry Bottom boilers only) SNR1 Low NOx Burner Technology ( Dry Bottom boilers only) SNR1 Other SNR1 Low NOx Burner Technology ( Dry Bottom boilers only) SNR1 Low NOx Burner Technology with Separated OFA ( Tangentially fired units only) Low NOx Burner Technology with Separated OFA ( Tangentially fired units only) Steam Injection Steam Injection Steam Injection Steam Injection Steam Injection Steam Injection Steam Injection Steam Injection Fluidized Bed Combustor RET1 Combustion Modification RET4 Combustion Modification RET4 RET1 RET1 RET1 RET1 Fluidized Bed Combustor Water Injection ( Turbines & Cyclone boilers only) Steam Injection Steam Injection RET1 RET1 RET1 Steam Injection Steam Injection Low NOx Burner Technology ( Dry Bottom boilers only) + Other Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only) Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only) Fluidized Bed Combustor RET1 RET1 RET1 RET1 RET1 Fluidized Bed Combustor Steam Injection Steam Injection Steam Injection Dry Low NOx Burners ( Turbines only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only), Water Injection ( Turbines & Cyclone boilers only), Steam Injection Dry Low NOx Burners ( Turbines only), Water Injection ( Turbines & Cyclone boilers only), Steam Injection RET1 RET1 RET1 RET1 RET1 RET1 RET1 Steam Injection Steam Injection Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only)

RET2 RET2 RET2 RET1 RET1 RET1 RET1 RET1 RET2 RET2 RET2 RET2 RET2 RET2 RET2 Steam Injection Ammonia Injection Ammonia Injection, Steam Injection Steam Injection Steam Injection RET3 RET1 RET1 Steam Injection Steam Injection Steam Injection Steam Injection Steam Injection Dry Low NOx Burners ( Turbines only)

Water Injection ( Turbines & Cyclone boilers only)

Water Injection ( Turbines & Cyclone boilers only) + Ammonia Injection Water Injection ( Turbines & Cyclone boilers only) + Ammonia Injection Other Ammonia Injection Dry Low NOx Burners ( Turbines only), Water Injection ( Turbines & Cyclone boilers only) Fluidized Bed Combustor Water Injection ( Turbines & Cyclone boilers only), Ammonia Injection Water Injection ( Turbines & Cyclone boilers only), Ammonia Injection Low NOx Burner Technology ( Dry Bottom boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only)

RET1 RET1 RET1 RET1 RET1 Dry Low NOx Burners ( Turbines only) + Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only)

Steam Injection RET1 RET1 RET1 RET1 Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only) Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only) Other Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Combustion Modification + Water Injection ( Turbines & Cyclone boilers only) Combustion Modification + Water Injection ( Turbines & Cyclone boilers only)

Ammonia Injection Ammonia Injection Ammonia Injection Steam Injection Steam Injection Steam Injection Steam Injection Water Injection ( Turbines & Cyclone boilers only)

Steam Injection Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only)

Steam Injection Water Injection ( Turbines & Cyclone boilers only) Overfire Air Water Injection ( Turbines & Cyclone boilers only)

RET2 RET2 RET2 RET2 Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) SCR Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only)

RET2 RET2 RET2 Low Excess Air & Overfire Air RET3 Low Excess Air & Overfire Air RET3 Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only) Steam Injection Steam Injection Dry Low NOx Burners ( Turbines only)

Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) RET2 RET2 RET2 RET2 Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only)

Steam Injection Steam Injection RET2 RET2 Steam Injection Steam Injection Low Excess Air RET3 Low Excess Air & Biased Firing ( alternate burners) RET3 Fluidized Bed Combustor Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only)

Water Injection ( Turbines & Cyclone boilers only) Low Excess Air RET3 Low Excess Air & Low NOx Burner RET3 Steam Injection Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only)

Water Injection ( Turbines & Cyclone boilers only), Other Water Injection ( Turbines & Cyclone boilers only), Other Dry Low NOx Burners ( Turbines only) RET3 Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only)

Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only), Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only) + Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only) + Water Injection ( Turbines & Cyclone boilers only)

Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Dry Low NOx Burners ( Turbines only) + Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only) + Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only) + Water Injection ( Turbines & Cyclone boilers only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only)

Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only)

Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only)

Dry Low NOx Burners ( Turbines only), Water Injection ( Turbines & Cyclone boilers only)

Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only)

Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only)

Combustion Modification Combustion Modification Combustion Modification Combustion Modification Other Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Water Injection ( Turbines & Cyclone boilers only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only)

Dry Low NOx Burners ( Turbines only), Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only), Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only), Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only), Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only), Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only)

Dry Low NOx Burners ( Turbines only), Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only)

Dry Low NOx Burners ( Turbines only) + Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only) + Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only)

Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only) + Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only) + Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only)

RET1 RET1 RET1 RET1 Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only)

Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only)

Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only)

Dry Low NOx Burners ( Turbines only)

Dry Low NOx Burners ( Turbines only), Water Injection ( Turbines & Cyclone boilers only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only)

Dry Low NOx Burners ( Turbines only)

Dry Low NOx Burners ( Turbines only)

Dry Low NOx Burners ( Turbines only), Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only), Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Water Injection ( Turbines & Cyclone boilers only) RET2 Water Injection ( Turbines & Cyclone boilers only) RET2 Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only)

Dry Low NOx Burners ( Turbines only), Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only), Water Injection ( Turbines & Cyclone boilers only) Other Other Dry Low NOx Burners ( Turbines only) RET2 Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only)

Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only)

Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only)

Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only)

Dry Low NOx Burners ( Turbines only) + Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only)

Combustion Modification Combustion Modification Combustion Modification Combustion Modification Combustion Modification Combustion Modification Combustion Modification Combustion Modification Combustion Modification Combustion Modification Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only), Ammonia Injection + Water Injection ( Turbines & Cyclone boilers only) Dry Low NOx Burners ( Turbines only), Ammonia Injection + Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only), Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only), Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only), Water Injection ( Turbines & Cyclone boilers only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only)

Dry Low NOx Burners ( Turbines only) RET1 Water Injection ( Turbines & Cyclone boilers only) RET1 Water Injection ( Turbines & Cyclone boilers only) RET1 Water Injection ( Turbines & Cyclone boilers only) RET1 Water Injection ( Turbines & Cyclone boilers only) RET1 Water Injection ( Turbines & Cyclone boilers only) RET1 Water Injection ( Turbines & Cyclone boilers only) RET1 Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only)

Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only)

Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only)

Steam Injection RET1 Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only)

Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only)

Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) RET1 RET1 Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Low NOx Burner Overfire Air SCR1 Overfire Air SCR1 Overfire Air RET3 Water Injection ( Turbines & Cyclone boilers only) RET3 Low Excess Air RET3 Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only)

Low Excess Air RET3 Low NOx Burner Technology with Separated OFA ( Tangentially fired units only) ML02 Other Low NOx Burner Technology ( Dry Bottom boilers only), Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only) Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only)

Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only) Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only) Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only) Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only)

Low NOx Burner Technology ( Dry Bottom boilers only) RET3 Low NOx Burner Technology ( Dry Bottom boilers only) RET3 Low NOx Burner Technology ( Dry Bottom boilers only) Overfire Air Low NOx Burner Low NOx Burner Low NOx Burner Low NOx Burner Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) Overfire Air Overfire Air Low NOx Burner Technology ( Dry Bottom boilers only) RET3 Combustion Modification RET3 Low NOx Burner Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only) ML02 Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only) Overfire Air Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only) Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only)

Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only) Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only)

Low NOx Burner Technology ( Dry Bottom boilers only)

Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) Other Other Other Low NOx Burner & Overfire Air & Flue Gas Recirculation Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only) Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only)

Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only)

Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only)

Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only)

Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only) Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only)

Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only), Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only)

Overfire Air Overfire Air Low NOx Burner Low NOx Burner Technology ( Dry Bottom boilers only)

Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only)

Dry Low NOx Burners ( Turbines only)

Overfire Air Overfire Air Overfire Air Overfire Air Overfire Air Other Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Steam Injection Steam Injection + Dry Low NOx Burners ( Turbines only) Steam Injection Low NOx Burner Technology ( Dry Bottom boilers only) Overfire Air SCR1 Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only) Low NOx Burner Technology ( Dry Bottom boilers only), with Close coupled and Separated OFA ( Tangentially fired units only)

Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only) RET3 RET3 Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only) Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only) Low NOx Burner Technology ( Dry Bottom boilers only)

Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only) Overfire Air Overfire Air Other Overfire Air Low NOx Burner Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only)

Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only) Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only) Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only) Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only) Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only)

RET1 RET1 Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Steam Injection Steam Injection Steam Injection Steam Injection Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only) Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) Water Injection ( Turbines & Cyclone boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only), Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only), Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only), Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only)

Low NOx Burner & Overfire Air Low NOx Burner & Overfire Air Low NOx Burner & Overfire Air Low NOx Burner & Overfire Air Low NOx Burner & Overfire Air Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only) Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only) Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only) Low Excess Air & Flue Gas Recirculation & Overfire Air Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only) Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only) Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) SCR1 Low NOx Burner Technology ( Dry Bottom boilers only) SCR1 Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only)

Low NOx Burner Low NOx Burner LD01 Overfire Air Overfire Air Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only), Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only) Overfire Air Overfire Air Overfire Air Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only) Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only) Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) RET3 Low NOx Burner Technology ( Dry Bottom boilers only) RET3 Overfire Air & Flue Gas Recirculation & Low NOx Burner Overfire Air Overfire Air Overfire Air Overfire Air Overfire Air Overfire Air Other RET3 RET1 RET1 RET1 Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only)

RET1 Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only) SCR1 Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only) SCR1 Overfire Air Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only) Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only) ML01 Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only) ML01 Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only) Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) RO01 Low NOx Burner Technology ( Dry Bottom boilers only) RO01 Water Injection ( Turbines & Cyclone boilers only) Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only) OFA OFA OFA OFA Low NOx Burner Technology ( Dry Bottom boilers only)

Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only)

Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only)

RET3 RET3 RET3 Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only), Water Injection ( Turbines & Cyclone boilers only) RET3 RET3 RET3 RET3 RET3 RET3 Low NOx Burner Low NOx Burner Low NOx Burner Technology ( Dry Bottom boilers only), with OFA Low NOx Burner Technology ( Dry Bottom boilers only)

Low NOx Burner Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only)

Other SCR1 Other SCR1 Other SCR1 Other SCR1 RET1 Overfire Air Overfire Air Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) RET1 RET1 RET1 RET1 RET1 RET1 RET1 RET1 RET1 RET1 RET1 RET1 RET1 RET1 RET1 RET1 RET1 RET1 RET1 RET1 Overfire Air Dry Low NOx Burners ( Turbines only) + Water Injection ( Turbines & Cyclone boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) RET3 RET3 Dry Low NOx Burners ( Turbines only), Water Injection ( Turbines & Cyclone boilers only)

Overfire Air Overfire Air Low NOx Burner & Overfire Air Dry Low NOx Burners ( Turbines only) + Water Injection ( Turbines & Cyclone boilers only)

Low NOx Burner Flue Gas Recirculation & Overfire Air Low NOx Burner Technology for Cell Burners RET3 RET3 RET3 RET3 Water Injection ( Turbines & Cyclone boilers only)

Combustion Modification Low NOx Burner Technology ( Dry Bottom boilers only)

Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only) Low NOx Burner Low NOx Burner Water Injection ( Turbines & Cyclone boilers only)

Low NOx Burner Technology ( Dry Bottom boilers only)

Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only)

Overfire Air Dry Low NOx Burners ( Turbines only), Water Injection ( Turbines & Cyclone boilers only)

RET3 Biased Firing ( alternate burners)

Low Excess Air SNR1 Low Excess Air SNR1 RET1 RET1 RET1 RET1 RET1 RET1 Low NOx Burner Technology with Separated OFA ( Tangentially fired units only) Low NOx Burner Technology with Separated OFA ( Tangentially fired units only) Low NOx Burner Technology with Separated OFA ( Tangentially fired units only) Low NOx Burner Technology with Separated OFA ( Tangentially fired units only) RET1 Low NOx Burners Low NOx Burners Low NOx Burners Low NOx Burner Technology ( Dry Bottom boilers only) RET1 RET1 Dry Low NOx Burners ( Turbines only) + Water Injection ( Turbines & Cyclone boilers only) Low NOx Burners Low NOx Burners Low NOx Burners Low NOx Burners Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only)

Low NOx Burner Technology with Separated OFA ( Tangentially fired units only) + Other Low NOx Burner Technology with Separated OFA ( Tangentially fired units only) + Other RET1 RET1 RET1 RET1 RET1 RET1 RET1 RET1 Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only), Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) + Other Water Injection ( Turbines & Cyclone boilers only) + Other Water Injection ( Turbines & Cyclone boilers only) + Other Water Injection ( Turbines & Cyclone boilers only), Overfire Air Water Injection ( Turbines & Cyclone boilers only), Overfire Air Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only)

Steam Injection Steam Injection Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Low NOx Burner Technology with Separated OFA ( Tangentially fired units only)

Other Other Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only)

Other Dry Low NOx Burners ( Turbines only) RET1 Steam Injection + Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Dry Low NOx Burners ( Turbines only)

Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Other Low NOx Burner Other Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only) + Other Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only) + Other Low NOx Burner Technology with Separated OFA ( Tangentially fired units only) + Other Low NOx Burner Technology with Separated OFA ( Tangentially fired units only) + Other Water Injection ( Turbines & Cyclone boilers only)

Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only), Water Injection ( Turbines & Cyclone boilers only)

Steam Injection Water Injection ( Turbines & Cyclone boilers only)

Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only)

Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Overfire Air Steam Injection Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only) + Water Injection ( Turbines & Cyclone boilers only)

LNC1 Dry Low NOx Burners ( Turbines only) + Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only) + Water Injection ( Turbines & Cyclone boilers only)

RET1 RET1 RET1 RET1 Other Other Water Injection ( Turbines & Cyclone boilers only) RET1 Water Injection ( Turbines & Cyclone boilers only) RET1 Dry Low NOx Burners ( Turbines only)

Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only)

Other Other Water Injection ( Turbines & Cyclone boilers only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only)

RET3 Dry Low NOx Burners ( Turbines only)

Dry Low NOx Burners ( Turbines only)

Dry Low NOx Burners ( Turbines only)

Dry Low NOx Burners ( Turbines only), Water Injection ( Turbines & Cyclone boilers only) Dry Low NOx Burners ( Turbines only), Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only), Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only), Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only), Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only), Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only), Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only), Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only), Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only), Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only)

RET1 Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only)

Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only)

RET1 RET1 RET1 RET1 RET1 RET1 RET1 Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) H2O Dry Low NOx Burners ( Turbines only), Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only), Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only), Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only), Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only)

Dry Low NOx Burners ( Turbines only)

Dry Low NOx Burners ( Turbines only), Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only), Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only), Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only) Dry Low NOx Burners ( Turbines only)

Dry Low NOx Burners ( Turbines only), Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only), Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only) + Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only) + Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only) + Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only) + Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only), Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only), Water Injection ( Turbines & Cyclone boilers only) Dry Low NOx Burners ( Turbines only)

Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only), Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only), Water Injection ( Turbines & Cyclone boilers only) Low NOx Burner Technology ( Dry Bottom boilers only), Low NOx Burner Technology with Overfire Air ( Dry Bottom boilers only)

Dry Low NOx Burners ( Turbines only), Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only), Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only), Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only), Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only), Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only), Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) + Ammonia Injection Dry Low NOx Burners ( Turbines only) RET1 Dry Low NOx Burners ( Turbines only) RET1 RET1 RET1 RET1 RET1 RET1 RET1 RET1 RET1 RET1 RET1 RET1 RET1 RET1 RET1 RET1 RET1 RET1 RET1 RET1 RET1 Low NOx Burner Technology with Separated OFA ( Tangentially fired units only) Low NOx Burners SCR2 Low NOx Burners SCR2 Low NOx Burner Technology with Separated OFA ( Tangentially fired units only) SCR1 Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only) SCR1 Water Injection ( Turbines & Cyclone boilers only) Other RET3 Other RET3 Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only)

RET1 RET1 Overfire Air Overfire Air Low NOx Burner Technology for Cell Burners LD02 Low NOx Burner Technology for Cell Burners LD02 Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only), Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only), Water Injection ( Turbines & Cyclone boilers only)

Dry Low NOx Burners ( Turbines only), Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only)

RET3 RET3 RET1 Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only) Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only) Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only) Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only) RET1 RET1 Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only) Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only)

RET1 RET1 RET1 RET1 Low NOx Burner Technology for Cell Burners Low NOx Burner Technology for Cell Burners RET1 RET1 Low NOx Burner Technology ( Dry Bottom boilers only) Other Other Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only) Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only) Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology ( Dry Bottom boilers only) Low NOx Burner Technology with Separated OFA ( Tangentially fired units only)

Low NOx Burner Technology ( Dry Bottom boilers only) SNR1 Low NOx Burner Technology ( Dry Bottom boilers only) SNR1 Low NOx Burner Technology ( Dry Bottom boilers only)

Overfire Air Overfire Air Dry Low NOx Burners ( Turbines only) Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only) Other Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only) Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only)

Other Overfire Air + Combustion Modification Overfire Air Overfire Air Overfire Air SCR1 Overfire Air SCR1 Overfire Air SCR1 Overfire Air SCR1 Overfire Air Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only) Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only)

Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only) Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only) Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only), Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only) Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only) Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only) Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only) Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only) Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only) Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only) Overfire Air Overfire Air Low NOx Burner Technology with Separated OFA ( Tangentially fired units only) Low NOx Burner & Biased Firing ( alternate burners) Biased Firing ( alternate burners) Biased Firing ( alternate burners)

Low NOx Burner & Overfire Air ML02 Low NOx Burner Technology with Separated OFA ( Tangentially fired units only) SCR2 Overfire Air Overfire Air Overfire Air Overfire Air Overfire Air Overfire Air SCR2 RET3 RET3 Low NOx Burner Technology ( Dry Bottom boilers only) SCR2 Low NOx Burner Technology ( Dry Bottom boilers only) SCR2 Low NOx Burner Technology ( Dry Bottom boilers only) SCR2 Water Injection ( Turbines & Cyclone boilers only), Overfire Air RET1 RET1 Low NOx Burner Technology with Separated OFA ( Tangentially fired units only) Low NOx Burner Technology with Separated OFA ( Tangentially fired units only) Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only)

Water Injection ( Turbines & Cyclone boilers only) Water Injection ( Turbines & Cyclone boilers only)

Low NOx Burner Technology with Separated OFA ( Tangentially fired units only) Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only) Low NOx Burner Technology with Close coupled and Separated OFA ( Tangentially fired units only) Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only) Low NOx Burner Technology with Close coupled OFA ( Tangentially fired units only)