fuel cell energy


fuel cell energy

A kind of battery that produces electricity from the reaction between an externally supplied fuel and an oxidant, in the presence of an electrolyte. Fuel cells generate but do not store energy, and they can provide nonstop, continuous operation as long as the required energy flow is maintained. For home use they provide clean, renewable energy and do not need distribution lines. Small-size home fuel cell units produce heat as a by-product, which can then be used as a cogeneration system for domestic hot water and space heating. Fuel cells can be used in conjunction with power grid systems or used independently as an off-the-grid system in remote areas. See also: energy