Transforming the U.S. Market with a New Application of Ternary-Type Pumped Storage Hydropower Technology [HydroWIRES]

The U.S. electrical grid is seeing a huge increase in new renewable energy (RE) generation and, at the same time, a huge amount of thermal generation retirements. This dynamic is changing the traditional operation of the grid and is placing a premium on assets that can provide fast-ramping flexible capacity. Addressing this need, the study’s goals were to assess & quantify how innovative, fast-acting advanced PSH systems can economically solve these grid integration challenges during future high RE contribution scenarios. Project focused on ternary PSH (T-PSH) and quaternary PSH (Q-PSH), coupling them with sophisticated transmission monitoring/control equipment (i.e., dynamic transmission) as a proposed solution.