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

A curve that displays load values on the horizontal axis in descending order of magnitude against the percent of time (on the vertical axis) that the load values are exceeded.

A law that requires electric utilities to purchase electricity produced from qualifying power producers that use renewable energy resources or are cogenerators. Utilities are required to purchase power at a rate equal to the avoided cost of generating the ...

Nonglossy paint with a relatively high absorptance.

Amorphous silicon with a small amount of incorporated hydrogen. The hydrogen neutralizes dangling bonds in the amorphous silicon, allowing charge carriers to flow more freely.

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 ability to dispatch power.

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

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 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.

The analysis of atmospheric conditions, particularly moisture in the air.

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 commmon term refering to an electricity transmission and distribution system.

Recombination occurring in the emitter region of a photovoltaic cell.

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

Ethyl alcohol (C2H5OH)

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

A power plant that generates power by combusting a fuel.