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

Air that is taken from the outdoors.

A popular term used to describe the increase in average global temperatures due to the greenhouse effect.

A solar absorber surface that has high absorbtance at wavelengths corresponding to that of the solar spectrum and low emittance in the infrared range.

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

This committee has jurisdiction on: coal production, distribution and utilization; energy policy; energy research, conservation, and development; hydroelectric power; irrigation; mineral conservation; nonmilitary development of nuclear energy; solar energ ...

As a component of a heating or cooling appliance, rows of tubing or pipe with fins attached through which a heat transfer fluid is circulated and to deliver heat or cooling energy to a building.

The maximum energy demand or load in a specified time period.

A study of the transformation of energy from one form to another, and its practical application. (see Law(s) of Thermodynamics above).

A device that can be set to automatically turn appliances (lights) off and on at set times.

The loss of heat as the water circulates through a water heater tank and inlet and outlet pipes.

Materials left over from making nuclear energy. Radioactive waste can living organisms if it is not stored safely.

As time increases from zero at the terminals of an inductor, the voltage comes to a particular value on the sine function curve ahead of the current. The voltage reaches its negative peak exactly 90 degrees before the current reaches its negative peak thu ...

A type of solar heating system that circulate warm water from storage through the collectors and exposed piping whenever freezing conditions occur; obviously a not very efficient system when operating in this mode.

This law states that no device can completely and continuously transform all of the energy supplied to it into useful energy.

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

A hydrogen production process that process uses algae. Under certain conditions, the pigments in certain types of algae absorb solar energy. An enzyme in the cell acts as a catalyst to split water molecules. Some of the bacteria produces hydrogen after th ...

The complete cycle of stages (evaporation and condensation) of refrigeration or of the refrigerant.

A material with high absorbtance and low emittance properties applied to or on solar absorber surfaces.

Energy conversion technologies that harness the energy in tides, waves, and thermal gradients in the oceans.