Energy that is capable or available for doing work; the time rate at which work is performed, measured in horsepower, Watts, or Btu per hour. Electric power is the product of electric current and electromotive force.

A plot of a wind energy conversion device's power output versus wind speed.

A term used to describe solar thermal, central receiver, power systems, where an array of reflectors focus sunlight onto a central receiver and absorber mounted on a tower.

The ratio of power produced by a wind energy conversion device to the power in a reference area of the free windstream.

The process of modifying the characteristics of electrical power (for e.g., inverting dc to AC).

The amount of power per unit area of a free windstream.

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.

An electrical conductor/cable that carries electricity from a generator to other locations for distribution.

A solar heating system that preheats water or air that is then heated more by another heating appliance.

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

The loss in static pressure of a fluid (liquid or gas) in a system due to friction from obstructions in pipes, from valves, fittings, regulators, burners, etc, or by a breech or rupture of the system. Pressurization Testing

The air that is supplied to the combustion chamber of a furnace.

Any machine capable of producing power to do work. An electric or hydraulic motor, steam engine or similar drive, acting directly on the deck machinery. Note—In a diesel electric motor is the prime mover.

Thermal energy that is used in agricultural and industrial operations.

Low or medium Btu content gas, composed mainly of carbon monoxide, nitrogen(2), and hydrogen(2) made by the gasification of wood or coal.

The elements and compounds that result from the combustion of a fuel.

The net south-facing glazing area projected on a vertical plane. Also, the solid area covered at any instant by a wind turbine's blades from the perspective of the direction of the windstream (as opposed to the swept area).

A hydrocarbon gas, C3H8, occurring in crude oil, natural gas, and refinery cracking gas. It is used as a fuel, a solvent, and a refrigerant. Propane liquefies under pressure and is the major component of liquefied petroleum (LPG).

A turbine that has a runner with attached blades similar to a propeller used to drive a ship. As water passes over the curved propeller blades, it causes rotation of the shaft.

A commonly used analysis for reporting fuel properties; may be on a dry (moisture free) basis, as "fired", or on an ash and moisture free basis. Fractions usually reported include: volatile matter, fixed carbon, moisture, ash, and heating value (higher he ...