- 업종: Government
- Number of terms: 22108
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The ratio of actual power being used in a circuit, expressed in watts or kilowatts, to the power that is apparently being drawn from a power source, expressed in volt-amperes or kilovolt-amperes.
Industry:Energy
The quality or condition of a photovoltaic system being available to provide power to a load. Usually measured in hours per year. One minus availability equals downtime.
Industry:Energy
The angle between true south and the point on the horizon directly below the sun.
Industry:Energy
Represents all components and costs other than the photovoltaic modules/array. It includes design costs, land, site preparation, system installation, support structures, power conditioning, operation and maintenance costs, indirect storage, and related costs.
Industry:Energy
A semiconductor in which holes carry the current; produced by doping an intrinsic semiconductor with an electron acceptor impurity (e.g., boron in silicon).
Industry:Energy
In a semiconductor, the energy difference between the highest valence band and the lowest conduction band.
Industry:Energy
A type of power inverter that produce a high quality (nearly sinusoidal) voltage, at minimum current harmonics.
Industry:Energy
The amount of energy (in electron volts) required to free an outer shell electron from its orbit about the nucleus to a free state, and thus promote it from the valence to the conduction level.
Industry:Energy
