Gridflex Energy, LLC is a leading originator of new pumped storage hydropower projects - the best-established, most economical form of long-duration grid storage available. Gridflex is currently developing a portfolio of pumped storage hydroelectric projects, with a combined capacity exceeding 3,000 megawatts. We specialize in the integration of wind and solar resources with bulk storage with the goal of enhancing renewable energy project viability and competitiveness.