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

The demand of a consumer of electricity at the time of a power supplier's peak system demand.

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 ratio of actual power being used in a circuit, expressed in watts or kilowatts, to the power that is apparently being drawn from a power source, expressed in volt-amperes or kilovolt-amperes.

The amount of money required to secure a specified cash flow at a future date at a specified return.

The planting, cultivation, and harvesting of a single species of crop in a specified area.

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

Turning off or disconnecting loads to limit peak demand.

Legal documents that regulate construction to protect the health, safety, and welfare of people. Codes establish minimum standards but do not guarantee efficiency or quality.

The ability to dispatch power.

That part of an electricity bill that is based on the amount of electrical energy consumed or supplied.

Nonglossy paint with a relatively high absorptance.

Ethyl alcohol (C2H5OH)

A power plant that generates power by combusting a fuel.

Solar radiation reflected from the ground onto a solar collector.

A chemical element that can be used as a fuel since it has a very high energy content.

The local climate of specific place or habitat, as influenced by landscape features.

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 term used to describe a technologically advanced window system that contains glazing that can change or switch its optical qualities when a low voltage electrical signal is applied to it, or in response to changes in heat or light.

A type of solar thermal system where sunlight is concentrated by a curved reflector onto a pipe containing a working fluid that can be used for process heat or to produce electricity. The world's largest solar thermal electric power plants use solar troug ...