What is Energy Recapture
and How does it Work
11720085
Lixin Quan
What is Energy Recapture
consumers of electricity
active during the daytime
inactive at night
The power made in night
Quantity demanded
Use
Waste
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
How does Pumped Storage Work
Pumped-storage hydroelectric power plant
Low-cost off-peak
(at night)
electric power is used
to run the pumps.
approximately 70% to 85% of the electrical
energy used to pump the water into the
elevated reservoir can be regained
During periods of
high electrical
demand, (at noon)
the stored water is
released through
turbines to produce
electric power.
Advantages
 No release of CO2
 No fossil fuels required
Worldwide use of pumpedstorage hydroelectricity
Station
Country
Capacity
(MW)
Bath County Pumped Storage Station
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
1,872
Tianhuangping Pumped Storage Power
Station
China
1,836
Reference
 http://www.scotsrenewables.com/blog/distributionandsto
rage/pumped-storage-hydro-in-scotland/
 http://en.wikipedia.org/wiki/Pumpedstorage_hydroelectricity
Thanks for your attention