A lamp where the light beam is focused 2 inches ahead of the lamp reducing the amount of light trapped in the fixture.

A measure of the average amount of a specified pollutant or material emitted for a specific type of fuel or process.

A substance(s) or pollutant emitted as a result of a process.

The ratio of the radiant energy (heat) leaving (being emitted by) a surface to that of a black body at the same temperature and with the same area; expressed as a number between 0 and 1.

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 purpose for which useful energy or work is consumed.

A heat absorbing reaction or a reaction that requires heat.

To send electricity through a electricity transmission and distribution network; a conductor or power line that is carrying current.

The capability of doing work; different forms of energy can be converted to other forms, but the total amount of energy remains the same.

That part of an electricity bill that is based on the amount of electrical energy consumed or supplied.

Recombination occurring in the emitter region of a photovoltaic cell.

Crops grown specifically for their fuel value. These include food crops such as corn and sugarcane, and nonfood crops such as poplar trees and switchgrass. Currently, two energy crops are under development: short-rotation woody crops, which are fast-growi ...

The ratio of available energy per pound; usually used to compare storage batteries.

The measure of the instantaneous energy efficiency of room air conditioners; the cooling capacity in Btu/hr divided by the watts of power consumed at a specific outdoor temperature (usually 95 degrees Fahrenheit).

A type of home mortgage that takes into account the energy savings of a home that has cost-effective energy saving improvements that will reduce energy costs thereby allowing the homeowner to more income to the mortgage payment. A borrower can qualify for ...

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 measure of overall efficiency for a variety of appliances. For water heaters, the energy factor is based on three factors: 1) the recovery efficiency, or how efficiently the heat from the energy source is transferred to the water; 2) standby losses, o ...

The labels placed on appliances to enable consumers to compare appliance energy efficiency and energy consumption under specified test conditions as required by the Federal Trade Commission.

The relative extent that energy is required for a process.

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 ...