PUMPED STORAGE POWER PLANT

PRESENTATION PREPARED BY MYSELF ABOUT PUMPED STORAGE POWER PLANT

1. PUMPED STORAGE POWER PLANT

2. INTRODUCTION Pumped storage power plants are a special type of power plants which work as conventional hydro power stations for part of the time. When the plants are not producing power, they can be used as pumping stations which pump water from tail race side to the high level reservoir. The working of the power station can be distinguished as the generating phase when the turbines and generators are electrical power and the pumping phase when the pump and motors are in Operation.

3. water is pumped up to the top reservoir at night when demand for power across the country is low.  when there is a sudden demand for power the head gates are opened and water rushes down the tunnels to drive the turbines, which drive the powerful generators. The water then collects in the bottom reservoir ready to be pumped back up later. reversible turbine / generator assemblies act as pump and turbine (usually a Francis turbine design). HOW IT WORKS

4. ADVANTAGES Relatively low capital cost; thus economic source of peaking capacity. Rugged and dependable; Can pick up load rapidly in a matter of few minutes. Readily adaptable to automation as well as remote control. Hydel power is free from effects of environmental pollution thus contributing a part in curbing air and water pollution. DISADVANTAGES Allow great deal of flexibility in operational schedules of system. Power required for pumping is available at cheaper rate power produced can be sold at prime rate this compensates the low hydraulic efficiency. They allow entire thermal or nuclear power generation to take up base load thus load factor improves giving overall greater system efficiency. little effect on the landscape.

5. AUSTRALIA Bendeela (1977),80 MW Kangaroo Valley(1977),160 MW FRANCE Grand Maison (1997),1070 MW Montezic (1983), 920 MW Super Bissorte (1978), 720 MW UNITED STATES Castaic Dam (1978), 1566 MW Bear Swamp (1972), 600 MW Blenheim Gilboa (1973), 1200 MW

6. Bhira, Maharastra, 150MW Kadamparai,Coimbatore,Tamil Nadu, 400MW (4x100 MW) Nagarjuna Sagar PH, Andhra pradesh, 810  MW (1x110 MW +7x100 MW) Purulia Pumped Storage Project, Ayodhya Hills, Purulia, West Bengal, 900MW Srisailam Left Bank PH, Andhra pradesh, 900 MW (6x150 MW) Tehri Dam, Uttranchal (Under construction), 1000 MW INDIA

7. LUDINGTON PUMPED STORAGE 1,872 MW ENERGY PRODUCTION