Sensible and latent heat contained in combustion gases and vapor emitted to the atmosphere.

Major energy consuming sectors of the economy. The Commercial Sector includes commercial buildings and private companies. The Industrial Sector includes manufacturers and processors. The Residential Sector includes private homes. The Transportation Sector ...

The production of electrical current from light.

An instrument for measuring relative humidity by means of wet and dry-bulb temperatures.

The volume of a unit weight of a substance at a specific temperature and pressure.

The prevailing or average weather conditions of a geographic region.

The abrupt and large increase in electrical conductivity exhibited by some metals as the temperature approaches absolute zero.

A solar photovoltaic product that generally consists of groups of PV cells electrically connected together to produce a specified power output under standard test conditions, mounted on a substrate, sealed with an encapsulant, and covered with a protectiv ...

A hydrocarbon gas, C3H8, occurring in crude oil, natural gas, and refinery cracking gas. It is used as a fuel, a solvent, and a refrigerant. Propane liquefies under pressure and is the major component of liquefied petroleum (LPG).

In reference to wind energy, for any given instant, the power available in the wind is proportional to the cube of the wind velocity; when wind speed doubles, the power availability increases eight times.

A turbine that generates power from the combustion of a fuel.

The height above the ground that a horizontal axis wind turbine's hub is located.

A solar collector that uses reflective surfaces to concentrate sunlight onto a small area, where it is absorbed and converted to heat or, in the case of solar photovoltaic (PV) devices, into electricity. Concentrators can increase the power flux of sunlig ...

The trapping of light by refraction and reflection at critical angles inside a semiconductor device so that it cannot escape the device and must be eventually absorbed by the semiconductor.

The physical measure of the subjective sensation of brightness; measured in lumens.

A class of energy producer that produces both heat and electricity from a single fuel.

The losses that result from inherent resistance in electrical conductors and transformation inefficiencies in distribution transformers in a transmission and distribution network.

A value that describes the ability of a material to conduct heat. The number of Btu that flow through 1 square foot of material, in one hour. It is the reciprocal of the R-Value (U-Value = 1/R-Value).

Transmit high-voltage electricity from the transformer to the electric distribution system.

An engine in which fuel is burned (or heat is applied) to the outside of a cylinder; a Stirling engine.