A measure of light quality. The maximum CRI value of 100 is given to natural daylight and incandescent lighting. The closer a lamp's CRI rating is to 100, the better its ability to show true colors to the human eye.

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

Usually refers to ethanol to 160 to 200 proof.

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

The monochromatic irradiance of a surface per unit bandwidth at a particular wavelength, usually expressed in Watts per square meter-nanometer bandwidth.

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

The power required to energize the magnetic field of a generator.

The fine particulate matter entrained in the flue gases of a combustion power plant.

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 ...

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

Those gases, such as water vapor, carbon dioxide, tropospheric ozone, methane, and low level ozone that are transparent to solar radiation, but opaque to long wave radiation, and which contribute to the greenhouse effect.

The region between an n-layer and a p-layer in a single material, photovoltaic cell.

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.

Thermal energy that is used in agricultural and industrial operations.

A type of water heater in which heated water is stored within the tank. Hot water is released from the top of the tank when a hot water faucet is turned. This water is replaced with cold water that flows into the tank and down to just above the bottom pla ...

A renewable energy system that includes two different types of renewable energy technologies that produce the same type of energy; for e.g., a wind turbine and a solar photovoltaic array combined to meet a power demand.

A steady-state fermentation process.

An electromechanical device composed of a coil of wire wound around a cylinder containing a bar or plunger, that when a current is applied to the coil, the electromotive force causes the plunger to move; a series of coils or wires used to produce a magnet ...

The amount of heat required to raise a unit mass of a substance through one degree, expressed as a ratio of the amount of heat required to raise an equal mass of water through the same range.

The weight of water vapor, per unit weight of dry air.