This page summarizes the energy storage state of the art, with focus on energy density and capacity cost, as well as storage efficiency and leakage. Power capacity is not considered and can be found in literature. The initial focus of this page was battery.
The cost of a 50kW lithium-ion battery storage system using LiFePO4 technology can range from $30,000 to $60,000 or more, depending on the quality and brand of the batteries. Therefore, the electricity price is around US$0. 12/kWh, which is relatively high in Southeast Asian.
Photovoltaics, by far the most important solar technology for distributed generation of solar power, uses solar cells assembled into solar panels to convert sunlight into electricity. It is a fast-growing technology doubling its worldwide installed capacity every couple of years.
