Pumped hydropower generation capabilities

They balance power generation and consumption in the electricity system, provide system services and reserve capacity, are capable of black start, contribute to redispatch, and supply instantaneous reserve. It is a configuration of two water reservoirs at different elevations that can generate power as water moves down from one to the other (discharge), passing through a turbine. While the concept of pumped storage hydropower (PSH) is not new, adjustable-speed pumped storage hydropower (AS-PSH) is equipped with power electronics; thus, it has more capabilities and is more agile and flexible to integrate with modern power systems. It can offer a wide range of services to the modern-day power grid, especially assisting the large-scale integration of variable energy resources. Department of Energy’s 2016 Hydropower Vision report, hydropower’s capacity can sustainably add 50 new gigawatts by 2050 — 36 GW of which is pumped storage.