HOW PUMPED STORAGE POWER PLANTS WORK? | PUMPED STORAGE POWER STATION|PUMPED STORAGE SCHEME

#HOW PUMPED STORAGE POWER PLANTS WORK? # PUMPED STORAGE POWER STATION #PUMPED STORAGE SCHEME

இந்த பகுதியில் Pumped storage power plant குறித்த விரிவான விளக்க படங்களுடன் காணலாம்

Pumped hydroelectric storage facilities store energy in the form of water in an upper reservoir, pumped from another reservoir at a lower elevation. During periods of high electricity demand, power is generated by releasing the stored water through turbines in the same manner as a conventional hydropower station. During periods of low demand (usually nights or weekends when electricity is also lower cost), the upper reservoir is recharged by using lower-cost electricity from the grid to pump the water back to the upper reservoir.

Reversible pump-turbine/motor-generator assemblies can act as both pumps and turbines. Pumped storage stations are unlike traditional hydroelectric stations in that they are a net consumer of electricity, due to hydraulic and electrical losses incurred in the cycle of pumping from lower to upper reservoirs. However, these plants are typically highly efficient (round-trip efficiencies reaching greater than 80%), and can prove very beneficial in terms of balancing load within the overall power system. Pumped-storage facilities can be very economical due to peak and off-peak price differentials and their potential to provide critical ancillary grid services.