PV string calculator
Pick a module, string quantity, and temperature range. Get P, V, and I at STC, cold Voc, and hot operating conditions.
Module, series/parallel count, Tmin and Tmax
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Calculators for electrical design work
PV strings, three-phase current, and SANS 10142-1 cable sizing — built for South African industrial and solar work. Use them freely; a coffee keeps them online.
Three-phase current calculator
Convert kW or kVA into line current for 400 V, 525 V, and other industrial voltages, including power factor and efficiency.
Power, voltage, power factor, efficiency
Open calculatorCable sizing calculator
Size LV cables with SANS 10142-1 current ratings and deratings for installation method, ambient or soil temperature, grouping, and spacing.
Current, method, temperature, grouping, voltage drop
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