That portion of an electricity supply system used to deliver electricity from points on the transmission system to consumers.

Salt mixtures with potential applications as solar thermal energy storage materials.

A chemical used as a preservative and in bonding agents. It is found in household products such as plywood, furniture, carpets, and some types of foam insulation. It is also a by-product of combustion and is a strong-smelling, colorless gas that is an eye ...

To price and sell greenpower/electricity higher than that produced from fossil or nuclear power plants, supposedly because some buyers are willing to pay a premium for greenpower.

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

The interior area of a building, calculated in square feet or meters.

Thermal energy that is used in agricultural and industrial operations.

A method of financial and economic analysis used to determine present and future values of investments or expenses.

The net south-facing glazing area projected on a vertical plane. Also, the solid area covered at any instant by a wind turbine's blades from the perspective of the direction of the windstream (as opposed to the swept area).

Air that provides the necessary oxygen for complete, clean combustion and maximum heating value.

The sum of the ratings of the electricity consuming apparatus connected to a generating system.

A body of water that contains brackish (highly saline) water that forms layers of differing salinity (stratifies) that absorb and trap solar energy. Solar ponds can be used to provide heat for industrial or agricultural processes, building heating and coo ...

A coating applied to the surface of the glazing of a window to reduce heat transfer through the window.

see Solar Spectrum above.

Steam available directly from a boiler under full pressure.

In reference to a wind energy conversion system, the wind speed profile in which wind speeds increase with the logarithmic of the height of the wind turbine above the ground.

Usually refers to ethanol to 160 to 200 proof.

The fossil fuels: coal, oil, and natural gas.

A method used to estimate building heating loads by assuming that heat loss and gain is proportional to the equivalent heat-loss coefficient for the building envelope.

Electromagnetic radiation whose wavelengths lie in the range from 0.75 micrometer to 1000 micrometers; invisible long wavelength radiation (heat) capable of producing a thermal or photovoltaic effect, though less effective than visible light.