This is a list of energy storage power plants worldwide, other than pumped hydro storage. Many individual

energy storage Energy storage is the capture of energy produced at one time for use at a later time to reduce imbalances between energy demand and energy production. A device that stores energy is generally called an Accumulator (energy), accumulator or Batte ...

plants augment

electrical grid An electrical grid (or electricity network) is an interconnected network for electricity delivery from producers to consumers. Electrical grids consist of power stations, electrical substations to step voltage up or down, electric power tran ...

s by capturing excess electrical energy during periods of low demand and storing it in other forms until needed on an

. The energy is later converted back to its electrical form and returned to the grid as needed. Most of the world's grid energy storage by capacity is in the form of

pumped-storage hydroelectricity Pumped-storage hydroelectricity (PSH), or pumped hydroelectric energy storage (PHES), is a type of hydroelectric energy storage used by electric power systems for load balancing (electrical power), load balancing. A PSH system stores energy i ...

, which is covered in

List of pumped-storage hydroelectric power stations The following page lists all pumped-storage hydroelectric power stations that are larger than in installed generating capacity, which are currently operational or under construction. Those power stations that are smaller than , and those that are ...

. This article list plants using all other forms of energy storage. Another energy storage method is the consumption of surplus or low-cost energy (typically during night time) for conversion into resources such as hot water, cool water or ice, which is then used for heating or cooling at other times when electricity is in higher demand and at greater cost per kilowatt hour (kWh). Such thermal energy storage is often employed at end-user sites such as large buildings, and also as part of

district heating District heating (also known as heat networks) is a system for distributing heat generated in a centralized location through a system of insulated pipes for residential and commercial heating requirements such as space heater, space heating and w ...

, thus shifting energy consumption to other times for better balancing of supply and demand. For a list of systems and forms of energy storage see

and grid energy storage.

Largest energy storage plants

Table is by default sorted by operational storage capacity in MWh. Minimum capacity for inclusion is either 100 MWh or 100 MW, with a minimum of 1 hour of storage.

Under construction

Largest thermal energy storage plants

Largest by technology

References

: ''This article contains text from the

United States Department of Energy The United States Department of Energy (DOE) is an executive department of the U.S. federal government that oversees U.S. national energy policy and energy production, the research and development of nuclear power, the military's nuclear w ...

, DOE Energy Storage Database, a work in the public domain.''

External links