Energy storage devices are “charged” when they absorb energy, either directly from renewable generation devices or indirectly from the electricity grid. They “discharge” when they deliver the stored energy back into the grid. Charge and discharge normally require power conversion devices, to transform electrical energy (AC or DC) into a different form of chemical, electrochemical, electrical, mechanical and thermal.
Energy storage can store surplus energy from intermittent renewable sources, such as solar PV and wind power, until it is required – allowing therefore for the integration of additional renewable energy into the system.
Different energy storage systems – centralised and decentralised – consider different technological possibilities, which EASE organises in 5 energy storage classes: chemical, electrochemical, electrical, mechanical and thermal.
Energy Storage Technology Descriptions
Chemical Energy Storage
Electrical Energy Storage
Electrochemical Energy Storage
- Flow Battery
- Metal Air Battery
- Nickel-Cadmium Battery
- Nickel-Metal Hydride Battery
- Lead-Acid Battery
- Lithium-Ion Battery
- Lithium-Sulphur Battery
- Lithium-Metal-Polymer Battery
- Sodium-Ion Battery
- Sodium-Nickel-Chloride Battery
- Soldium Sulphur NaS Battery
Mechanical Energy Storage
- Adiabatic Compressed Air Energy Storage
- Diabatic Compressed Air Energy Storage
- Liquid Air Energy Storage
- Pumped Heat Electrical Storage
- Pumped Hydro Storage
Thermal Energy Storage
To download all Technologies Descriptions, please click here.