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Calculator of the number of solar panels under the inverter

Inverter & Solar Panel Calculator

Calculate the number of panels and Voc(T) using the temperature coefficient formula of Voc.

Required Power and/or Load (kW)

Example: 5 (kW) — the peak power you need to provide.

Power of One Panel (Wp)

Voc (STC) — Open Circuit Voltage at STC (V)

βVoc (%/°C)

Operating Temperature (T), °C

T_STC (°C)

System Efficiency (Losses) (%)

Inverter Reserve (%)

Voc(T) Formula:

Voc(T) = Voc(STC) × [1 + (βVoc / 100) × (T − T_STC)]