Definition
A unit of electrical power equal to 1,000 watts. Residential solar systems are typically sized in kilowatts (e.g., a 7 kW system). One kilowatt of solar capacity produces about 1,200-1,800 kWh of electricity per year depending on location.
Related Solar Terms
- Photovoltaic (PV)
The technology that converts sunlight directly into electricity using semiconduc...
- Kilowatt-Hour (kWh)
A unit of electrical energy equal to one kilowatt of power sustained for one hou...
- Net Metering
A billing arrangement where excess solar electricity sent to the grid earns cred...
- Inverter
A device that converts the DC (direct current) electricity produced by solar pan...
- String Inverter
A central inverter that converts DC to AC for an entire string of solar panels. ...
Understanding solar terminology helps you communicate more effectively with installers and evaluate quotes accurately. Use our solar cost database to find fair prices for any solar service.