The transfer of heat by means of air currents.

The two times of the year when the sun is apparently farthest north and south of the earth's equator; usually occurring on or around June 21 (summer solstice in northern hemisphere, winter solstice for southern hemisphere) and December 21 (winter solstice ...

The lower or net heat of combustion for a fuel that assumes that all products of combustion are in a gaseous state. (See Net Heating Value below.)

The potentially useful byproducts of ethanol fermentation process.

Pounds of pressure per square inch.

A measure of the quality of a light source by expressing the color appearance correlated with a black body.

see Peak Watt.

The space between a hanging ceiling and the floor above or roof; usually contains HVAC ducts, electrical wiring, fire suppression system piping, etc.

A generator with a single armature coil, which may have many turns and the alternating current output consists of a succession of cycles.

Pounds/force per square inch absolute.

The ratio of the sum of the noncoincidental maximum demands of two or more loads to their coincidental maximum demands for the same period.

The conversion of electric power to visible light by using an electric charge to excite gaseous atoms in a glass tube. These atoms emit ultraviolet radiation that is absorbed by a phosphor coating on the walls of the lamp tube. The phosphor coating produc ...

The total distribution of electromagnetic radiation emanating from the sun. The different regions of the solar spectrum are described by their wavelength range. The visible region extends from about 390 to 780 nanometers (a nanometer is one billionth of o ...

This committee has oversight over the generation and marketing of electric power from federal water projects by federally charted or Federal RPM authorities, measures and matters concerning water resources planning, compacts relating to use and apportionm ...

A window located on the roof of a structure to provide interior building spaces with natural daylight, warmth, and ventilation.

The amount of energy produced as a percentage of the amount of energy consumed.

A tax credit granted for specific types of investments.

The fine particulate matter entrained in the flue gases of a combustion power plant.

The process by which sunlight directly enters a building through the windows and is absorbed and stored in massive floors or walls.

The fossil fuels: coal, oil, and natural gas.