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N-type semiconductor |
A semiconductor produced by the doping of an intrinsic semiconductor with an electron-donor impurity; for example, phosphorous in silicon. |
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N-Type silicon |
Silicon doped with an element that has more electrons in its atomic structure than does |
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Nameplate or Nominal Capacity |
Refers to maximum capacity for the entire year. Does not account for when machines are installed and how long to set up and ramp. |
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NEC |
US National Electrical Code. Contains guidelines for all types of electrical installations which should be followed when installing a PV system. |
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NEMA |
US National Electrical Manufacturers Association. Sets standards for some non-electronic products such as junction boxes. |
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Net metering |
The practice of exporting surplus solar power during the day to the electricity grid. The homeowner electric meter will either physically go backwards or will creates a financial credit on the homeowner's electricity bill. |
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Nickel-cadmium battery (NiCad) |
A form of rechargable battery, having higher storage densities than that of lead-acid batteries, that uses a mixture of nickel hydroxide and nickel oxide for the anode, and cadmium metal for the cathode. The electrolyte is potassium hydroxide. |
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Noise |
Unwanted electrical signals produced by electric motors and other machines that can cause circuits and appliances to malfunction. |
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Nominal voltage |
A rounded voltage value used to describe batteries, modules, or systems based on their specification (e.g. a 12V, 24V or 48V battery, module, or system). |
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Normal Operating Cell Temperature (NOCT) |
The estimated temperature of a solar PV module when it is |
