Ethyl alcohol (C2H5OH)

A type of house that has massive amounts of insulation, airtight construction, and controlled ventilation without sacrificing comfort, health, or aesthetics.

The process of converting municipal solid waste to energy and/or recovering materials for recycling.

The fluid, liquid (water or water/antifreeze solution) or air, used to absorb solar energy and transfer it for direct use, indirect heating of interior air or domestic water, and/or to a heat storage medium.

A building with more than 50 percent of its floorspace used for commercial activities, which include stores, offices, schools, churches, libraries, museums, health care facilities, warehouses, and government buildings except those on military bases.

The unoccupied, and usually unfinished and unconditioned space between the floor, foundation walls, and the slab or ground of a building.

The flow rate in these systems is 1/8 to 1/5 the rate of most solar water heating systems. The low-flow systems take advantage of stratification in the storage tank and theoretically allows for the use of smaller diameter piping to and from the collector ...

One pound of water in vapor phase; is NOT steam pressure, which is expressed as pounds per square inch (psi).

An electronic device that allows current to flow in one direction only.

The highest wind speed at which a wind turbine stops producing power.

A utility owned by stockholders or other investors; sometimes referred to as a private utility, in contrast to a public utility that is owned by a government agency or cooperative.

A frequently used room or area that is maintained at a more comfortable level than the rest of the house; also known as a "warm room."

Any wholly or partially enclosed space in which combustion takes place.

The amount of heated air, or heating capacity, to be supplied by a heating system; usually the maximum amount to be delivered based on a specified number of heating degree days or design outside temperature.

Solar Two is a retrofit of the Solar One project (see above). It is demonstrating the technical feasibility and power potential of a solar power tower using advanced molten-salt technology to store energy. Solar Two retains several of the main components ...

The height above the ground that a horizontal axis wind turbine's hub is located.

A battery that uses lithium in the negative electrode and a metal sulfide in the positive electrode, and the electrolyte is molten salt; can store large amounts of energy per unit weight.

A gasifier in which the feedstock (fuel) is suspended by the movement of gas to move it through the gasifier.

Air that is returned to a heating or cooling appliance from a heated or cooled space.

The heat produced by combusting a specific quantity and volume of fuel in an oxygen-bomb colorimeter under specific conditions.