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Solar Technology related terms beginning with O.
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- Ohm : A measure of the electrical resistance of a material equal to the resistance of a circuit in which the potential difference of 1 volt produces a current of 1 ampere.
- One-Axis Tracking : A system capable of rotating about one axis.
- Open-Circuit Voltage (Voc) : The maximum possible voltage across a photovoltaic cell; the voltage across the cell in sunlight when no current is flowing.
- Operating Point : The current and voltage that a photovoltaic module or array produces when connected to a load. The operating point is dependent on the load or the batteries connected to the output terminals of the array.
- Orientation : Placement with respect to the cardinal directions, N, S, E, W; azimuth is the measure of orientation from north.
- Outgas : See gassing.
- Overcharge : Forcing current into a fully charged battery. The battery will be damaged if overcharged for a long period.
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