Solar String Calculator

⚡ Inverter / Charge Controller Specs

MPPT Voltage Min (V) ?

MPPT Voltage Max (V) ?

Max Input VOC (V) ?

Max Utilized Solar Power (W) ?

MPPT Max Current (per input) (A) ?

🔆 Solar Panel Specs (STC — 25 °C, 1000 W/m²)

Open-Circuit Voltage — V_OC (V)

Max Power Voltage — V_MP (V)

Max Power Current — I_MP (A)

Short-Circuit Current — I_SC (A)

Rated Power — P_MAX (W) ? Optional. Defaults to V_MP × I_MP.

🌡️ Temperature Coefficients (enter as %/°C, e.g. -0.29 for −0.29%/°C)

Coeff. V_OC (%/°C) ?

Coeff. V_MP (%/°C) ?

Coeff. I_SC (%/°C) ?

Coeff. P_MAX (%/°C) ?

🔗 String Configuration

Panels in Series ?

Strings in Parallel ?

🌡️ Temperature Range

Minimum Temperature (°C) ?

Maximum Temperature (°C) ?

📊 Results

String Voltages

String VOC — Maximum

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String VOC — Minimum

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String VMP — Maximum

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String VMP — Minimum

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Array Currents

Array ISC — Maximum

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Array IMP — at STC

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Array Power

Rated Power (STC)

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Power at Min Temp

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Power at Max Temp

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🛡️ Safety Checks

Check	Detail	Status