Energy loads that can be shut off or disconnected at the supplier's discretion or as determined by a contractual agreement between the supplier and the customer.

A panel which covers the underside of an roof overhang, cantilever, or mansard.

In reference to solar photovoltaic devices, a material that is composed of a single crystal or a few large crystals.

A value used to estimate interior air cooling requirements (load) calculated as the number of degrees per day (over a specified period) that the daily average temperature is above 65 degrees Fahrenheit (or some other, specified base temperature). The dail ...

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.

A general term applied to the energy that is converted to a form that can not be effectively used (lost) during the operation of an energy producing, conducting, or consuming system.

Water that is suitable for drinking, as defined by local health officials.

The type of alternative current generated by alternating current generators, rotary inverters, and solid-state inverters.

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 ...

A construction element applied to the outermost surface of an exterior wall.

A term used for materials used to absorb and store solar energy.

A device for transforming the quality and quantity of electrical energy; also an inverter.

A stack of wood 4 feet by 4 feet by 8 feet.

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 ...

Solar radiation that arrives in a straight line from the sun.

A type of heating system in which heated air is blown by a fan through air channels or ducts to rooms.

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.

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

The heat produced by sources of heat in a building (occupants, appliances, lighting, etc).

A technique for insulating and sealing exterior walls that reduces vapor diffusion through air leakage points by installing pre-cut blocks of rigid foam insulation over floor joists, sheet subfloor, and top plates before drywall is installed.