1. What is Energy Recapture and How does it Work 11720085 Lixin Quan

2. active during the daytime inactive at night consumers of electricity Quantity demanded Energy Recapture is system that Energy Recapture is system that allows energy to be stored when electricity is plentiful and released for generation in times of high grid demand. Pumped-storage hydroelectric power plant Compressed air energy storage What is Energy Recapture The power made in night Use Waste

3. How does Pumped Storage Work Pumped-storage hydroelectric power plant approximately 70% to 85% of the electrical energy used to pump the water into the elevated reservoir can be regained Low-cost off-peak (at night) electric power is used to run the pumps. During periods of high electrical demand, (at noon) the stored water is released through turbines to produce electric power. turbines

4. Advantages No release of CO2 No fossil fuels required StationCountry Capacity (MW)MW Bath County Pumped Storage Station United States United States 3003 Guangdong Pumped Storage Power Station China 2,400 Okutataragi Hydroelectric Power Station Japan 1,932 Ludington Pumped Storage Power Plant United States United States 1,872 Tianhuangping Pumped Storage Power Station China 1,836 Worldwide use of pumped- storage hydroelectricity

5. Reference http://www.scotsrenewables.com/blog/distributionandsto rage/pumped-storage-hydro-in-scotland/ http://www.scotsrenewables.com/blog/distributionandsto rage/pumped-storage-hydro-in-scotland/ http://en.wikipedia.org/wiki/Pumped- storage_hydroelectricity

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