This is the voltage-ampere requirement of a device designed to convert electric energy to a non-electrical form.

The cost of producing electricity up to the point of the powerplant busbar.

The ratio of light reflected by a surface to the light falling on it.

A device that converts the mechanical energy of rotation into electricity based on electromagnetic induction. An electric voltage (electromotive force) is induced in a conducting loop (or coil) when there is a change in the number of magnetic field lines ...

The temperature of a medium, such as gas or liquid, which comes into contact with or surrounds an apparatus or building element.

The use of direct, diffuse, or reflected sunlight to provide supplemental lighting for building interiors.

The number of degrees per day that the daily average temperature (the mean of the maximum and minimum recorded temperatures) is below a base temperature, usually 65 degrees Fahrenheit, unless otherwise specified; used to determine indoor space heating req ...

The process of decomposing biomass with anaerobic bacteria to produce biogas.

The process of removing a power plant, apparatus, equipment, building, or facility from operation.

A wall that carries ceiling rafters or roof trusses.

The positive pole or electrode of an electrolytic cell, vacuum tube, etc. (see also sacrificial anode).

A category of electric power producer established under the Public Utility Regulatory Policy Act (PURPA) of 1978, that includes small-power producers (SPP) who use renewable sources of energy such as biomass, geothermal, hydroelectricity, solar (thermal a ...

That fraction of annual energy demand supplied by a solar system.

The control of the quality, quantity, and temperature-humidity of the air in an interior space.

A building architectural element (vestibule) with two airtight doors that reduces the amount of air infiltration and exfiltration when the exterior most door is opened.

A unit for measuring the extent that the outdoor daily average temperature (the mean of the maximum and minimum daily dry-bulb temperatures) falls below (in the case of heating, see Heating Degree Day), or falls above (in the case of cooling, see Cooling ...

A type of electric generator that produces alternating current that matches an existing power source.

An opening; in solar collectors, the area through which solar radiation is admitted and directed to the absorber.

The space-conditioning load of a building.

The amount of heat energy needed to raise the temperature of a given mass of a substance by one degree Celsius. The heat required to raise the temperature of 1 kg of water by 1 degree Celsius is 4186 Joules.