A commmon term refering to an electricity transmission and distribution system.

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 ...

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 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.

Recombination occurring in the emitter region of a photovoltaic cell.

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.)

Fabricated as a single structure.

The analysis of atmospheric conditions, particularly moisture in the air.

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

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

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

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

The tank of a water heater.

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

A circular projection of the sky vault onto a flat diagram used to determine solar positions and shading effects of landscape features on a solar energy system.

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

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

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

A popular term used for an evaporative cooling device.

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