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A water and energy conserving device that limits the amount of water that a faucet or showerhead can deliver.

Category:Energy Terms

A solar thermal technology that uses a modular mirror system that approximates a parabola and incorporates two-axis tracking to focus the sunlight onto receivers located at the focal point of each dish. The mirror system typically is made from a number of ...

Category:Energy Terms

The practice of installing blow-in, loose-fill insulation at a lower density than is recommended to meet a specified R-Value.

Category:Energy Terms

A measure of the ability of a light source to show colors, based on a color rendering index.

Category:Energy Terms

A heating system in which steam or hot water for space heating or hot water is piped from a central boiler plant or electric power/heating plant to a cluster of buildings.

Category:Energy Terms

A body of water used to cool the water that is circulated in an electric power plant.

Category:Energy Terms

A chemical element, of atomic number 14, that is semi-metallic, and an excellent semiconductor material used in solar photovoltaic devices; commonly found in sand.

Category:Energy Terms

The two times of the year when the sun is apparently farthest north and south of the earth's equator; usually occurring on or around June 21 (summer solstice in northern hemisphere, winter solstice for southern hemisphere) and December 21 (winter solstice ...

Category:Energy Terms

To schedule and control the generation and delivery of electric power.

Category:Energy Terms

A structure used to cool power plant water; water is pumped to the top of the tubular tower and sprayed out into the center, and is cooled by evaporation as it falls, and then is either recycled within the plant or is discharged.

Category:Energy Terms

A law to protect consumers and investors. It placed geographic restrictions on mergers and limitations on diversification into non-utility lines of business and takeovers of electric and gas utilities, and also established regulated monopoly markets or se ...

Category:Energy Terms

The process of designing a solar system to meet a specified load given the solar resource and the nominal or rated energy output of the solar energy collection or conversion device.

Category:Energy Terms

The ratio of heat produced by a fuel for doing work to the available heat in the fuel.

Category:Energy Terms

The use of solar thermal energy or solar electricity to power a cooling appliance. There are five basic types of solar cooling technologies: absorption cooling, which can use solar thermal energy to vaporize the refrigerant; desiccant cooling, which can u ...

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One or more circuits of a distribution system on the same line or poles or supporting structures' usually operating at a lower voltage relative to the transmission line.

Category:Energy Terms

A group of solar collectors or solar modules connected together.

Category:Energy Terms

The process of distilling (purifying) water using solar energy. Water can be placed in an air tight solar collector with a sloped glazing material, and as it heats and evaporates, distilled water condenses on the collector glazing, and runs down where it ...

Category:Energy Terms

A tube inside a domestic water heater that distributes the cold water from the cold water supply line into the lower area of the water heater where heating occurs.

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A glazed structure, such as greenhouse or "sunspace."

Category:Energy Terms

The fine particulate matter entrained in the flue gases of a combustion power plant.

Category:Energy Terms

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