A unit of electricity consumption of one Watt over the period of one hour.

A device for measuring power consumption.

A structure or media that absorbs heat.

The difference between the total cooling effect and the dehumidifying effect.

Space cooling achieved by shading, natural (unassisted, as opposed to forced) ventilation, conduction control, radiation, and evaporation; also called passive cooling.

A measure of the percent of moisture actually in the air compared with what would be in it if it were fully saturated at that temperature. When the air is fully saturated, its relative humidity is 100 percent.

The amount of kinetic energy gained by an electron when accelerated through an electric potential difference of 1 Volt; equivalent to 1.603 x 10

A device used to transfer heat from a fluid (liquid or gas) to another fluid where the two fluids are physically separated.

The average power output of a wind energy conversion system at a given mean wind speed based on a Raleigh frequency distribution.

SMES technology uses the superconducting characteristics of low-temperature materials to produce intense magnetic fields to store energy. SMES has been proposed as a storage option to support large-scale use of photovoltaics and wind as a means to smooth ...

Energy that comes from splitting atoms of radioactive materials, such as uranium, and which produces radioactive wastes.

Energy available from the movement of the wind across a landscape caused by the heating of the atmosphere, earth, and oceans by the sun.

The angle at which a solar collector or module is set to face the sun relative to a horizontal position. The tilt angle can be set or adjusted to maximize seasonal or annual energy collection.

A term applied to warm-air heating systems that deliver heated air to rooms by means of registers or baseboards located along exterior walls.

A term generally applied to individual solar collectors, and typically to solar photovoltaic collectors or modules.

A machine for converting mechanical energy into electrical energy by magneto-electric induction; may be used as a motor.

An electrical device for converting alternating current to direct current. The chamber in a cooling device where water is separated from the working fluid (for example ammonia).

The ratio of a boiler's or gasifier's maximum output to its minimum output.

A solar thermal system that has one tank for storing solar heated water to preheat the water in a conventional water heater.

Wood, used for fuel, that has been air dried so that it contains 15 to 20 percent moisture content (wet basis).