In reference to a wind turbine, a condition when the rotor stops turning.

The difference in electrical pressure (voltage) between any two points in an electrical system or between any point in an electrical system and the earth.

A comprehensive legislative package that mandates and encourages energy efficiency standards, alternative fuel use, and the development of renewable energy technologies. Public Law 102-486, October 24th, 1992. Also authorized the Federal Energy Regulatory ...

A device built into or installed above a combustion appliance to assure the escape of combustion byproducts, to prevent backdrafting of the appliance, or to neutralize the effects of the stack action of the chimney or vent on the operation of the applianc ...

An air conditioning system that comes in two to five pieces: one piece contains the compressor, condenser, and a fan; the others have an evaporator and a fan. The condenser, installed outside the house, connects to several evaporators, one in each room to ...

A masonry or metal stack that creates a draft to bring air to a fire and to carry the gaseous byproducts of combustion safely away.

The inner coil in a heat pump that, during the cooling mode, absorbs heat from the inside air and boils the liquid refrigerant to a vapor, which cools the house.

When the temperature of the hydrothermal liquids is over 350 F (177 C), flash-steam technology is generally employed. In these systems, most of the liquid is flashed to steam. The steam is separated from the remaining liquid and used to drive a turbine ge ...

A byproduct of low-temperature carbonization of a solid fuel.

A unit of work done by the force of one dyne acting through a distance of one centimeter.

An estimate of power demand at some future period.

The production of hydrogen using a photoelectrochemical cell.

A container that holds rock used as the thermal mass to store solar energy in a solar heating system.

The process by which a power plant, apparatus, or building is approved for operation based on observed or measured operation that meets design specifications.

The use of two or more different fuels (e.g. wood and coal) simultaneously in the same combustion chamber of a power plant.

A type of heating appliance that extracts so much of the available heat content from a combusted fuel that the moisture in the combustion gases condenses before it leaves the furnace. Also this furnace circulates a liquid to cool the furnace's heat exchan ...

The low effective temperature of the sky on a clear night.

An investment in a power plant or demand side management measures or programs, that become uneconomical due to increased competition in the electric power market. For example, an electric power plant may produce power that is more costly than what the mar ...

The process of degrading organic material (biomass) by microorganisms in aerobic conditions.

A device used to protect the user of any electrical system or appliance from shock.