The transfer of heat by means of air currents.

To price and sell greenpower/electricity higher than that produced from fossil or nuclear power plants, supposedly because some buyers are willing to pay a premium for greenpower.

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

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 generator with a single armature coil, which may have many turns and the alternating current output consists of a succession of cycles.

A solar photovoltaic device with a specified area.

The tendency of the sunlight to electricity conversion efficiency of amorphous silicon photovoltaic devices to degrade (drop) upon initial exposure to light.

A widely used rate of return for performing economic analysis. This method solves for the interest rate that equates the equivalent worth of an alternative's cash receipts or savings to the equivalent worth of cash expenditures, including investments. The ...

This committee has oversight over the generation and marketing of electric power from federal water projects by federally charted or Federal RPM authorities, measures and matters concerning water resources planning, compacts relating to use and apportionm ...

Restrictions on the use of a property.

A source of power (electricity) that can displace power from another source so that source's power can be transmitted to more distant loads.

Salt mixtures with potential applications as solar thermal energy storage materials.

A popular term for energy produced from renewable energy resources.

The ratio of average energy demand (load) to maximum demand (peak load) during a specific period.

A curve on a chart showing power (kW) supplied (on the horizontal axis) plotted against time of occurrence (on the vertical axis) to illustrate the variance in a load in a specified time period.

A heat exchanger in which two fluids flow in opposite directions for transfer heat energy from one to the other.

A solar heating system that uses a liquid as the heat transfer fluid.

The process of controlling indoor moisture levels and condensation.

A measure of the quality of a light source by expressing the color appearance correlated with a black body.