 Apart from the energy savings, PAT Cycle - I resulted in 31 million tonnes of CO2 emission reductions and yielded investments of INR 24,500 crores in energy efficiency.PAT Cycle II - The second phase of the PAT Cycle was rolled out for the period from 2016-17 to 2018–19.The phase was expanded to include new designated consumers from the earlier eight sectors and three new sectors- Railway, Refineries and Distribution Companies (DISCOMs), taking the total to 621 DCs.