Required solar capacity
Required solar capacity: use daily energy target, peak sun hours, performance ratio. Review the formula, worked example and calculation steps.
Inputs
Use the units shown—
Enter your values and select Calculate.
Formula & explanation
Rated capacity = daily kWh/(peak sun hours × performance ratio/100)
Variables & units
- Daily energy target
- kWh/day · minimum 0, maximum 1000000000000
- Peak sun hours
- h/day · minimum 0.000001, maximum 1000000000000
- Performance ratio
- % · minimum 0.000001, maximum 100
Worked example
Use the example inputs to explore this model; the solution shows each supplied quantity.
Assumptions
Steady daily-energy estimate; storage, seasonal variation and grid constraints require separate design.
Formula version 1.0.0. JavaScript floating-point arithmetic applies. Results display up to 6 decimal places; stored values retain available precision. Use the units shown.
Practice with an example
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