Pumped storage hydropower facilities rely on two reservoirs at different elevations to store and generate energy. When other power plants generate more electricity than the grid needs, a PSH plant can use that power to pump water into the upper reservoir. . The Blenheim–Gilboa Pumped Storage Power Station is a pumped-storage hydroelectricity plant in the Catskill Mountains of New York State. The plant is part of the New York Power Authority, and can generate over 1,100 megawatts (1,500,000 hp) of electricity. It is used daily to cover peak demand. The system also requires power as it pumps water. . There are 41 utility-scale hydroelectric plants currently online in the USA that have reversible pump/turbines, and qualify as part of a pumped storage project. Some of them are on rivers with multiple dams, allowing water to be pumped back upstream for water supply control, as well as. . NLR experts are developing tools and partnering with industry to unlock the full potential of pumped storage hydropower (PSH)—a form of hydropower used to generate electricity, store energy, and provide grid services. Image from IKM 3D. PSH complements wind and solar by storing the excess electricity they create and providing the backup for when the wind isn't blowing, and the sun isn't shining. PSH. . Pumped hydroelectric storage (PHS) is the most widely used electrical energy storage technology in the world today. It can offer a wide range of services to the modern-day power grid, especially assisting the large-scale integration of variable energy resources. It has gained a renewed interest. .
