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

Waste water from a household source other than a toilet. This water can be used for landscape irrigation depending upon the source of the greywater.

A toilet that uses less water than a standard one during flushing, for the purpose of conserving water resources.

A type of lamp that produces light from sodium gas contained in a bulb operating at a partial pressure of 0.13 to 1.3 Pascal. The yellow light and large size make them applicable to lighting streets and parking lots.

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

The amount of conditioned air to be supplied by a cooling system; usually the maximum amount to be delivered based on a specified number of cooling degree days or design temperature.

A nationally recognized energy rating program that gives builders, mortgage lenders, secondary lending markets, homeowners, sellers, and buyers a precise evaluation of energy losing deficiency's in homes. Builders can use this system to gauge the energy q ...

Power plants, whose output depends on a factor(s) that cannot be controlled by the power generator because they utilize intermittent resources such as solar energy or the wind.

A building element that provides protection against the sun, wind, and precipitation.

A type of combustion heating system in which combustion air is drawn directly from outside and the products of combustion are vented directly outside. These features are beneficial in tight, energy-efficient homes because they will not depressurize a home ...

The vacancy where an electron would normally exist in a solid; behaves like a positively charged particle.

A type of inverter that produces square wave output.; consists of a DC source, four switches, and the load. The switches are power semiconductors that can carry a large current and withstand a high voltage rating. The switches are turned on and off at a c ...

In reference to solar photovoltaic devices, the growth of one crystal on the surface of another crystal. The growth of the deposited crystal is oriented by the lattice structure of the original crystal.

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

An automatic valve that is opened or closed by an electromagnet.

Ethyl alcohol (C2H5OH)

A method of controlling a wind turbine's speed by varying the orientation, or pitch, of the blades, and thereby altering its aerodynamics and efficiency.

The temperature of the air as measured by a standard thermometer.

An electric current taking a shorter or different path than intended.

The number of revolutions that the motor turns in a given time period (i.e. revolutions per minute, rpm).