rechargeable battery is most common electricity storage. Usually the capacity of a household battery storage is few hours of normal energy consumpion of a household.
insulated water tank is most common thermal energy storage. Usually the capacity of a household thermal storage is from hours to days of households normal thermal energy consumpion.
seasonal thermal energy storage can keep heat or cold up to several months.
pumped hydroelectric storage is most common large scale electric energy storage. Low-cost energy is used to pump water from lower reservoir to upper reservoir. Energy is stored to gravitational (potential) energy of water.
power to gas is a technology that converts electricity to gas fuel. Gas fuel can be stored to pressurised tank.
Solar thermal collectors
Air heat pumps
cooling and heating air
Air-Water heat pumps
Geothermal heat pumps
Other renewable energy sources
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