A stand-alone power system, also known as remote area power supply (RAPS), is an off-the-grid electricity system for locations that are not fitted with an electricity distribution system. Typical SAPS include one or more methods of electricity generation, energy storage, and regulation.
A typical stand-alone solar PV system at a sewage treatment plant in Santuari de Lluc, Spain
Solar powered parking meter
Grid 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 or when demand is low, and later returned to the grid when demand is high, and electricity prices tend to be higher.
Nissan Leaf, the world's top-selling highway-capable electric car as of 2015
NASA G2 flywheel
Mingtan Pumped-Storage Hydro Power Plant dam in Nantou, Taiwan
Fetsui hydroelectric dam in New Taipei, Taiwan