(PPT)National Hydropower Association America’s Original Energy Storage Technology –A New Look(PPT)

摘要

1.About NHA;2.Existing U.S.Pumped Storage Fleet;3.Growth Opportunity;4.Pumped Storage Basics;5.Grid Benefits;6.Needed Policy Changes.DOE Hydropower Vision:With NHA as the Lead partner,DOE issued a first-of-its kind report in 2016 of hydro’s contributions to the nation’s energy portfolio as well as its future growth.Hits the reset button on hydropower.The Report finds upwards of 26 GW by 2030 and almost 50 GW by 2050.Pumped storage projects move water between two reservoirs located at different elevations(an upper and lower reservoirs)to store energy and generate electricity.Generally,when electricity demand is low(e.g.,at night),excess electric generation capacity is used to pump water from the lower reservoir to the upper reservoir.When electricity demand is high,the stored water is released from the upper reservoir to the lower reservoir through a turbine to generate electricity.Pumped storage projects are also capable of providing a range of ancillary services to support the integration of intermittent renewable resources and the reliable and efficient functioning of the electric grid.