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 or battery. Energy comes in ...

plants augment

electrical grid An electrical grid is an interconnected network for electricity delivery from producers to consumers. Electrical grids vary in size and can cover whole countries or continents. It consists of:Kaplan, S. M. (2009). Smart Grid. Electrical Power ...

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, 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 Thermal energy storage (TES) is achieved with widely different technologies. Depending on the specific technology, it allows excess thermal energy to be stored and used hours, days, months later, at scales ranging from the individual process, ...

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 or teleheating) 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 heating a ...

, 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 Grid energy storage (also called large-scale energy storage) is a collection of methods used for energy storage on a large scale within an electrical power grid. Electrical energy is stored during times when electricity is plentiful and inexp ...

Largest energy storage plants

Table is by default sorted by operational storage capacity in MWh. Minimum capacity for inclusion is either 30 MWh or 30 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 manages the research and development of nuclear power and nuclear weapons in the United Stat ...

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

External links