Grid Energy Storage

Introduction

In order to cope with both high and low load situations, as well as the increasing amount of renewable energy being fed into the grid, the storage of electricity is of great importance. However, the large-scale storage of electricity in the grid is still a major challenge and subject to research and development. 

The following technologies and approaches can, or are hoped to, provide a solution to storing electricity and balancing supply and demand in modern electricity grids.

Pump storage hydropower

A pumped storage hydroelectricity system (PSH) consists of two water reservoirs at different elevations. Low-cost surplus electric power is typically used to pump water into the upper reservoir. During periods of high electricity demand, the stored water is released through turbines to generate electricity.

Further Information

Grid Portal on energypedia