storage power plant pumped storage power plant persian spelled located range near village south iran power plant uses pumped storage hydroelectric method generate electricity periods high energy demand making peaking power plant intended fulfill peak electricity demand south complete installed generating capacity pumping capacity planning project began 1970s construction began delayed generator went online remaining generators commissioned september power plant pumped storage type iran use country concrete face rock fill dam background site identified power plant 1970s study carried water resources belgian firm sites dams identified including potential place pumped storage power plant feasibility report project submitted mountains study concluded studies began halted iranian revolution contracted create designs underground excavation completed year construction dam diversion tunnels began designs phase developed construction continued lack funding halted project construction commence contracts dams power plant awarded construction continued project percent complete april upper lower reservoir complete finished january generators commissioned remaining operational september design operation power plant operates lower upper reservoir power plant connected water pumped lower upper reservoir serve stored energy released upper lower reservoir generate electricity pumping occurs low demand cheap electricity periods night generating occur peak demand expensive electricity hours day pumping generating process repeats needed upper lower created concrete face rock fill dams average cubic metres second upper dam metres tall long contains cubic metres fill structural volume metres wide crest wide base reservoir storage capacity cubic metres acre acre active usable surface area square kilometres lower reservoir dam bigger tall metres long contains cubic metres fill wide crest metres wide base reservoir storage capacity acre cubic metres acre active usable surface area km2 dams equipped staircase upper dam maximum discharge capacity lower cubic metres second normal elevation upper reservoir lower metres gross maximum hydraulic head normal metres connecting upper reservoir power station intake feeds water metres diameter head race tunnels length intake surge tanks prevent water hammer metres left tunnel metres right tunnel surge tanks tunnels turn metres long delivers water power station located underground near lower reservoir power station supply francis turbine pump generators water pump generators generating capacity pumping capacity generators discharge cubic metres second water power converted water discharged generators proceeds tail race tunnels metres metres length discharged lower reservoir pumping required pump generators reverse pumps send water upper reservoir water generator pump water
Siah Bishe Pumped Storage Power Plant