A type of cooling system that uses a charging and discharging cycle with a thermal or latent heat storage subsystem.

A power source/generator that operates independently of or is not connected to an electric transmission and distribution network; used to meet a load(s) physically close to the generator.

The amount of heat in a quantity of matter at a specific temperature and pressure.

A structure or media from which heat can be absorbed or extracted.

A unit or measure of solar radiation; 1 calorie per square meter or 3.69 Btu per square foot.

The electrical and magnetic fields created by the presence or flow of electricity in an electrical conductor or electricity consuming appliance or motor.

An index that combines sensible temperature and air humidity to arrive at a number that closely responds to the effective temperature; used to relate temperature and humidity to levels of comfort.

An aluminum foil fabricated insulator with backings applied to provide a series of closed air spaces with highly reflective surfaces.

The cost of producing one additional unit of a product.

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

Fuels that cannot be easily made or "renewed," such as oil, natural gas, and coal.

A type of solar thermal collector in which a heat transfer fluid drips out of header pipe at the top of the collector, runs down the collector absorber and into a tray at the bottom where it drains to a storage tank.

A fluid used to absorb and transfer heat energy.

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

A sinusoidal quantity having a frequency that is an integral multiple of the frequency of a periodic quantity to which it is related.

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

A device that uses electronic components to regulate the voltage of fluorescent lamps.

A structure or media that absorbs heat.

The amount that the voltage, current, and/or power output of a solar cell changes due to a change in the cell temperature.

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.