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.

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

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

A characteristic applied to domestic water heaters that is the amount of gallons raised 100 degrees Fahrenheit per hour (or minute) under a specified thermal efficiency.

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 ...

A horizontal axis wind turbine in which the rotor is downwind of the tower.

This committee has jurisdiction on the oversight and legislative responsibilities for: coal, nuclear, and non-nuclear energy commercialization projects; DOE National Laboratories; global climate change; new technologies research and development; commercia ...

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

A window glass that has been coated with a reflective film and is useful in controlling solar heat gain during the summer.

The process of converting materials that are no longer useful as designed or intended into a new product.

An electrical generator that runs at a constant speed and draws its excitation from a power source external or independent of the load or transmission network it is supplying.

Air that is returned from a heated or cooled space, reconditioned and/or cleaned, and returned to the space.

A device used to remove particulate matter from the waste gasses of a combustion power plant.

This device can automatically turn the heater off at night and on in the morning.

To allow or augment the natural movement of cooler air from exterior, shaded areas of a building through or around a building.

Caulking and weatherstripping to reduce air infiltration and exfiltration into/out of a building.

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

An architectural design invented by Buckminster Fuller with a regular polygonal structure based on radial symmetry.

A mechanism used by electric utilities to determine prices for electricity; typically defines rates according to amounts of power demanded/consumed during specific time periods.