This online sizing tool is under continual ongoing development. Please understand that we accept no liability for any issues as a result of using it.
The calculator makes a few basic assumptions and will never be as comprehensive as having a system properly designed for you by an experienced off-grid power engineer. However, it is intended to give a quick ballpark idea of the size of system required for any particular load level.
Features include :
- Load Calculation Sheet - establish how much power you require.
- Battery & PV Array Sizing - help sizing the battery bank and solar pv array.
- Controller & Cable Sizing - work out what spec of solar controller and cables you need.
- Save complete webpage as a unique name and share it or work on it later.
Note on Cables : Maximum cable currents are based on H07-RNF single core cable, which is a common cable used for DC systems, as it is tough, flexible and double-insulated. However the current rating will be roughly similar for other types of cable (solar cable for example).