A device used to transfer heat from a fluid (liquid or gas) to another fluid where the two fluids are physically separated.

A type of solar heating system that circulate warm water from storage through the collectors and exposed piping whenever freezing conditions occur; obviously a not very efficient system when operating in this mode.

A fluid used to absorb and transfer heat energy.

Power generation equipment or system capacity to meet peak power demands.

The amount of heat that a material can absorb and store.

Wood, used for fuel, that has been air dried so that it contains 15 to 20 percent moisture content (wet basis).

Energy available from the movement of the wind across a landscape caused by the heating of the atmosphere, earth, and oceans by the sun.

The conversion of heat into electricity by the use of thermocouples.

The ratio of a boiler's or gasifier's maximum output to its minimum output.

A term generally applied to individual solar collectors, and typically to solar photovoltaic collectors or modules.

A structure or media from which heat can be absorbed or extracted.

A safety device consisting of a short length of relatively fine wire, mounted in a holder or contained in a cartridge and connected as part of an electrical circuit. If the circuit source current exceeds a predetermined value, the fuse wire melts (i.e. th ...

A building element that shades windows, walls, and doors from direct solar radiation and protects these elements from precipitation.

A study of the transformation of energy from one form to another, and its practical application. (see Law(s) of Thermodynamics above).

These fluids can be either water or steam trapped in fractured or porous rocks; they are found from several hundred feet to several miles below the Earth's surface. The temperatures vary from about 90 F to 680 F (32 C to 360 C) but roughly 2/3 range in te ...

A unit of electricity consumption of one Watt over the period of one hour.

A material with high absorbtance and low emittance properties applied to or on solar absorber surfaces.

SMES technology uses the superconducting characteristics of low-temperature materials to produce intense magnetic fields to store energy. SMES has been proposed as a storage option to support large-scale use of photovoltaics and wind as a means to smooth ...

This committee has jurisdiction on the oversight and legislative responsibilities for: coal, nuclear, and non-nuclear energy commercialization projects; DOE National Laboratories; global climate change; new technologies research and development; commercia ...

The angle at which a solar collector or module is set to face the sun relative to a horizontal position. The tilt angle can be set or adjusted to maximize seasonal or annual energy collection.