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Solar planning tools

Tấm pin · Điện áp · Dòng điện · Tối đa

Screen one MPPT input against temperature-adjusted string voltage and current limits.

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Live calculation
Tối thiểu · Nhiệt độ · Voc
214.63 V
Tối đa · Nhiệt độ · Vmp
140.87 V
Tối thiểu · Nhiệt độ · Vmp
184.76 V
Limit checks failed
0
Planning estimates, not equipment approval. Review the assumptions below before choosing a system.

No location or tariff is detected automatically. All results use the values you enter.

This guide is available in English and Urdu. English is shown below.

What is this tool used for?

Use this tool to screen a proposed panel-string arrangement against the selected voltage and current limits of one inverter MPPT input.

How to use this calculator

Enter series and parallel counts, panel datasheet values and temperature coefficients, design cell temperatures, and the inverter's absolute PV, MPPT operating and current limits. Treat each independent MPPT separately.

Understanding your results

Review every voltage and current check rather than just total array watts. A passing screen covers only the limits modelled here; startup voltage, permitted array power, connector restrictions and manufacturer design rules still need verification.

Phương pháp tính

Temperature-corrected voltage = series × reference voltage × [1 + coefficient / 100 × (cell temperature − 25)]. Compare cold Voc with absolute PV maximum; hot and cold Vmp with MPPT window. Compare parallel Imp and Isc with their separate current limits.

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Trước khi sử dụng kết quả

Passing these selected checks is not full equipment approval. Verify startup voltage, permitted array wattage, irradiance/current correction factors, connector limits and manufacturer string-design rules. Inputs describe ONE MPPT, not combined independent MPPT channels.

What should I check before using this estimate?

Passing these selected checks is not full equipment approval. Verify startup voltage, permitted array wattage, irradiance/current correction factors, connector limits and manufacturer string-design rules. Inputs describe ONE MPPT, not combined independent MPPT channels.

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