The following outline is provided as an overview of and topical guide to grid energy storage:
Grid energy storage – the collection of technologies connected to the electrical grid that store energy for later use. Grid energy storage can balance generation and consumption, integrate variable renewable energy, provide grid services, and improve grid reliability.
Overview
Distributed generation Dispatchable generation Electrical grid Electric power distribution Electric power transmission Energy storage Long-duration energy storage Power engineering Smart grid Variable renewable energy
Roles and grid services
Ancillary services (electric power) Black start Operating reserve Peak demand Power quality Spinning reserve Transmission congestion Utility frequency Voltage regulation
Storage characteristics
Charge cycle Depth of discharge Energy Energy density Long-duration energy storage Power Power density Roundtrip efficiency Self-discharge State of charge State of health
Forms of grid energy storage
Electrochemical
Flow battery Iron-air battery Lead–acid battery Lithium-ion battery Lithium iron phosphate battery Metal–air electrochemical cell Nickel–cadmium battery Sodium-ion battery Sodium–sulfur battery Vanadium redox battery Zinc–air battery
Mechanical Compressed-air energy storage Compressed carbon dioxide energy storage Cryogenic energy storage Flywheel energy storage Gravity battery Pumped-storage hydroelectricity
Chemical
Ammonia Fuel cell Green hydrogen Hydrogen storage Methanol economy Power-to-gas Power-to-X Synthetic natural gas
Thermal Carnot battery Molten salt Phase-change material Pumped-heat electricity storage Seasonal thermal energy storage Thermal energy storage Underground thermal energy storage
Electrical Supercapacitor Superconducting magnetic energy storage
Battery energy storage systems
Battery management system Battery pack Electrical substation Power electronics Power inverter Protective relay Supervisory control and data acquisition Switchgear Transformer
Grid integration and flexibility
Curtailment (electricity) Demand response Distributed generation Duck curve Grid-connected photovoltaic power system Home energy storage Hybrid power Electricity interconnector Islanding Load following power plant Microgrid Peaking power plant Smart grid Variable renewable energy Vehicle-to-grid Virtual power plant
Economics and electricity markets
Capacity market Dynamic pricing Electric utility Electricity market Electricity pricing Energy storage as a service Independent system operator Levelized cost of storage Net metering
Control and operation Energy management system Power-system automation Supervisory control and data acquisition Virtual power plant
Safety Electrical safety Lithium-ion battery safety Plug-in electric vehicle fire Thermal runaway
Environmental considerations Battery recycling Critical minerals Environmental impact of electricity generation Life-cycle assessment Water resources
Companies and products
Companies Ambri Aquion Energy BYD CATL Energy Vault EVE Energy Form Energy Highview Power Hydrostor LG Energy Solution Natron Energy Tesla
Products Tesla Megapack Tesla Powerpack Tesla Powerwall UltraBattery
Lists List of battery manufacturers List of electric vehicle battery manufacturers List of energy megaprojects List of energy storage projects List of energy storage power plants
See also
History of the battery Outline of electrical engineering Outline of energy Outline of energy development United States Department of Energy International Energy Storage Database