- Industry: Government
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A compound cell made of different semiconductor materials in layers, one above the other. Sunlight entering the top passes through successive cell barriers, each of which converts a separate portion of the spectrum into electricity, thus achieving greater total conversion efficiency of the incident light. Also called a multiple junction cell. See multijunction device and split-spectrum cell.
Industry:Energy
The number of repetitions per unit time of a complete waveform, expressed in Hertz (Hz).
Industry:Energy
A unit of electrical force equal to that amount of electromotive force that will cause a steady current of one ampere to flow through a resistance of one ohm.
Industry:Energy
This indicates the variability in the output frequency. Some loads will switch off or not operate properly if frequency variations exceed 1%.
Industry:Energy
The amount of electromotive force, measured in volts, that exists between two points.
Industry:Energy
An optical device that focuses light like a magnifying glass; concentric rings are faced at slightly different angles so that light falling on any ring is focused to the same point.
Industry:Energy
The voltage at which maximum power is available from a photovoltaic module.
Industry:Energy
The amount of power density in sunlight received at the earth's surface at noon on a clear day (about 1,000 Watts/square meter).
Industry:Energy
Many inverters have sensing circuits that will disconnect the unit from the battery if input voltage limits are exceeded.
Industry:Energy
