A means of billing electric power consumers to pay for the costs of demand side management/energy conservation measures and programs. (See also Benefits Charge.)

A solar energy system designed to provide heat to individual rooms in a building.

Materials with high thermal energy storage capacity contained in or part of a building's walls, floors, or freestanding elements.

A type of solar thermal system where sunlight is concentrated by a curved reflector onto a pipe containing a working fluid that can be used for process heat or to produce electricity. The world's largest solar thermal electric power plants use solar troug ...

A plan developed by an electric utility, sometimes as required by a public regulatory commission or agency, that defines the short and long term capacity additions (supply side) and demand side management programs that it will undertake to meet projected ...

The tank of a water heater.

Solar radiation reflected from the ground onto a solar collector.

A method used to estimate building heating loads by assuming that heat loss and gain is proportional to the equivalent heat-loss coefficient for the building envelope.

A body of water that contains brackish (highly saline) water that forms layers of differing salinity (stratifies) that absorb and trap solar energy. Solar ponds can be used to provide heat for industrial or agricultural processes, building heating and coo ...

A popular term used to describe the heating effect due to the trapping of long wave (length) radiation by greenhouse gases produced from natural and human sources.

An amount paid by a customer for being connected to an electricity supplier's transmission and distribution system.

A construction element used to cover the exterior of wall framing and roof trusses.

A gasifier in which the feedstock (fuel) is suspended by the movement of gas to move it through the gasifier.

Fabricated as a single structure.

A type of furnace in which fuel is burned and the heat is used to produce steam.

Steam available directly from a boiler under full pressure.

A popular term for localized or on-site power generation.

An insulation product made of a fibrous material or plastic foams, pressed or extruded into board-like forms. It provides thermal and acoustical insulation strength with low weight, and coverage with few heat loss paths.

An electronic device that allows current to flow in one direction only.

A stationary or rotating vent used to ventilate attics or cathedral ceilings; usually made of galvanized steel, or polypropylene.