A coating applied to the surface of the glazing of a window to reduce heat transfer through the window.

A water and energy conserving device that limits the amount of water that a faucet or showerhead can deliver.

Pounds/force per square inch absolute.

A chemical element, of atomic number 14, that is semi-metallic, and an excellent semiconductor material used in solar photovoltaic devices; commonly found in sand.

The quantity of heat that a cooling appliance is capable of removing from a room in one hour.

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 ...

An interior or exterior movable panel that operates on hinges or slides into place, used to protect windows or provide privacy.

Thermal energy that is used in agricultural and industrial operations.

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

A steady-state fermentation process.

A method of financial and economic analysis used to determine present and future values of investments or expenses.

The difference between the brightness of an object compared to that of its immediate background.

A type of insulation that is molded or expanded to produce coarse, closed cells containing air. The rigid cellular structure provides thermal and acoustical insulation, strength with low weight, and coverage with few heat loss paths. Often used to insulat ...

Usually refers to ethanol to 160 to 200 proof.

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.

A solar power station investigated by NASA that entailed a satellite in geosynchronous orbit that would consist of a very large array of solar photovoltaic modules that would convert solar generated electricity to microwaves and beam them to a fixed point ...

A solar thermal technology that uses a modular mirror system that approximates a parabola and incorporates two-axis tracking to focus the sunlight onto receivers located at the focal point of each dish. The mirror system typically is made from a number of ...

That amount of cooling energy to be supplied (or heat and humidity removed) based on the sensible and latent loads.

The requirement that an electric power utility generate or purchase a specified percentage of the power it supplies/sells from renewable energy resources, and thereby guarantee a market for electricity generated from renewable energy resources.

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