Thermal Energy Storage
Energy stored in the form of heat, used for heating buildings or in industrial processes.
- Heat storage in liquids (e.g., water);
- Heat storage in solid materials (e.g., sand, rock salt);
Electrochemical Batteries
A popular form of energy storage.
- Lithium-Ion batteries: used in mobile devices, electric vehicles, energy storage systems in power plants and homes
Mechanical Energy Storage
- Pumped-Storage Hydroelectric Power Plants (PSP); Water pumped to a higher-level reservoir stores energy, which is recovered by releasing the water to drive turbines.
- Compressed Air; Energy stored by compressing air, which drives turbines upon release.
- Flying Wheels; Mechanical energy stored by a rotating wheel; more energy stored at higher speeds.
Hydrogen Energy Storage
Hydrogen production through electrolysis, storing hydrogen for later use in fuel cells or turbines.
Electrical Energy
Stored and transmitted via current.
- Capacitors: They store electrical energy in the electric field between the electrodes.
- Supercapacitors: Higher energy capacity and faster charging than ordinary capacitors; they store and release energy quickly. Ideal for applications requiring short, intense energy spikes.
- Superconducting Magnetic Energy Storage (SMES): Energy stored in a magnetic field; highly efficient but expensive.
Mechanical Energy
- Pumped Hydro Storage (PHS); Pumping water to a higher reservoir, recovering energy by releasing water to drive turbines
- Flywheel Energy Storage (FES); Energy stored by a rotating wheel, recovered during deceleration.
- Compressed Air Energy Storage (CAES); Energy stored by compressing air, which drives a turbine upon release.
Thermal Energy
Energy storage in the form of heat, used for heating buildings and water.
- PCM (Phase Change Materials); Chemical compounds that absorb or release a large amount of energy during phase transition; used in underfloor heating and the transportation of pharmaceuticals/food products.
Co-authored with Paweł Wróblewski – CEO ElbudBis
The content of this article is intended to provide a general guide to the subject matter. Specialist advice should be sought about your specific circumstances.
