Business establishments that are not engaged in transportation or in manufacturing or other types of industrial activity (agriculture, mining, or construction). Commercial establishments include hotel [..]

A collection of photovoltaic modules electrically wired together in one structure to produce a specific amount of power.  

The quantity of heat needed to raise the temperature of 1 pound of water by 1°F at or near 39.2°F.  

A water pump using a rotating element or screw to move water. The faster the rotation, the greater the flow.  

A component of a photovoltaic system that controls the flow of current to and from the battery subsystem to protect batteries from overcharge, over discharge, or other control functions. The charge co [..]

The production of electricity and another form of useful energy (such as heat or steam) used for industrial, commercial, heating, or cooling purposes.  

A building with more than 50 percent of its floor space used for commercial activities. Commercial buildings include stores, offices, schools, churches, gymnasiums, libraries, museums, hospitals, clin [..]

Electric current (flow of electrons) in which the flow is in only one direction.  

The amount of time an inverter (power conditioning unit) can produce at full rated power.  

The process of producing electric energy or transforming other forms of energy into electric energy. Also, the amount of electric energy produced or ex pressed in watt-hours (Wh).