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2. Nickel–hydrogen battery - Wikipedia

   en.wikipedia.org/wiki/Nickel–hydrogen_battery

   A nickel–hydrogen battery (NiH 2 or Ni–H 2) is a rechargeable electrochemical power source based on nickel and hydrogen. [5] It differs from a nickel–metal hydride (NiMH) battery by the use of hydrogen in gaseous form, stored in a pressurized cell at up to 1200 psi (82.7 bar) pressure. [6] The nickel–hydrogen battery was patented in the ...

3. Energy storage - Wikipedia

   en.wikipedia.org/wiki/Energy_storage

   Energy storage is the capture of energy produced at one time for use at a later time [ 1 ] to reduce imbalances between energy demand and energy production. A device that stores energy is generally called an accumulator or battery. Energy comes in multiple forms including radiation, chemical, gravitational potential, electrical potential ...

4. Battery energy storage system - Wikipedia

   en.wikipedia.org/wiki/Battery_energy_storage_system

   A battery energy storage system (BESS) or battery storage power station is a type of energy storage technology that uses a group of batteries to store electrical energy. Battery storage is the fastest responding dispatchable source of power on electric grids, and it is used to stabilise those grids, as battery storage can transition from ...

5. Grid energy storage - Wikipedia

   en.wikipedia.org/wiki/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 inexpensive (especially from variable renewable energy sources such as wind power and solar power) or when ...

6. Hydrogen storage - Wikipedia

   en.wikipedia.org/wiki/Hydrogen_storage

   For many years hydrogen has been stored as compressed gas or cryogenic liquid, and transported as such in cylinders, tubes, and cryogenic tanks for use in industry or as propellant in space programs. The overarching challenge is the very low boiling point of H 2: it boils around 20.268 K (−252.882 °C or −423.188 °F).

7. Fuel cell - Wikipedia

   en.wikipedia.org/wiki/Fuel_cell

   Fuel cells cannot store energy like a battery, [74] except as hydrogen, but in some applications, such as stand-alone power plants based on discontinuous sources such as solar or wind power, they are combined with electrolyzers and storage systems to form an energy storage system.