A means to increase the thermal efficiency of a steam electric generating system by converting some waste heat from the condenser into electricity. The heat engine in a bottoming cycle would be a condensing turbine similar in principle to a steam turbine ...

The production of an electric current in a conductor by the variation of a magnetic field in its vicinity.

A group of organic compounds composed of carbon, hydrogen, and oxygen; a series of molecules composed of a hydrocarbon plus a hydroxyl group; includes methanol, ethanol, isopropyl alcohol and others.

A device that measures the intensity of direct beam solar radiation.

The unit of magnetic field intensity equal to 1 dyne per unit pole.

The housing around a motor that supports the active parts and protects them. They come in different varieties (open, protected) depending on the degree of protection required.

The pressure of the steam or water in a boiler as measured; usually expressed in pounds per square inch gauge (psig).

The unit of illuminance equivalent to 1lumen per square meter.

Generation of energy at the location where all or most of it will be used.

The maximum possible voltage across a photovoltaic cell; the voltage across the cell in sunlight when no current is flowing.

The prescribed level of pollutants allowed in outside or indoor air as established by legislation.

A light source composed of a metal base, a glass tube filled with an inert gas or a vapor, and base pins to attach to a fixture.

Houses that have earth berms around exterior walls.

A building energy auditing technique used to determine and/or locate air leaks in a building shell or envelope.

A type of heat pump that uses sealed horizontal or vertical pipes, buried in the ground, as heat exchangers through which a fluid is circulated to transfer heat.

A compound used to make certain types of solar photovoltaic cells.

As defined in the Energy Security Act (P.L. 96-294; 1980) as "any organic matter, including sewage, sewage sludge, and industrial or commercial waste, and mixtures of such matter and inorganic refuse from any publicly or privately operated municipal waste ...

A charge for the maximum rate at which energy is used during peak hours of a billing period. That part of a utility service charged for on the basis of the possible demand as distinguished from the energy actually consumed.

Those elements of building used to control the interior climate.

The heat absorbed or released when a substance undergoes a change in temperature.