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Peak Sun Hours
Convert daily insolation to Peak Sun Hours.
PerformanceCore inputs only — quick sizing with engineering defaults.
Inputs (SI units)
Results
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Engineering Formula
- PSH = Daily insolation / 1000 W/m²
PSH is the equivalent hours per day at STC irradiance (1 kW/m²). Kolkata ≈ 4.5, Jaipur ≈ 5.8, Ladakh ≈ 6.5.
Step-by-step Calculation
- 1.PSH
G/10005.2 h
Design Assumptions
- • Daily insolation on plane of array (POA).
Engineering Tips
- ◆Use TMY data averaged over 10+ years for bankability.
Warnings
- ▲GHI ≠ POA — tilt correction can shift PSH by ±10%.
Standards & References
NASA POWERNREL NSRDB
Related Solar Calculators
Annual Energy Yield
Daily / monthly / annual yield from CUF and PR.
Azimuth Deviation Loss
Annual energy loss vs deviation from true south (N-hem).
Shading Loss
Annual generation loss from partial shading.
Temperature Loss
Power derating from cell temperature above STC 25 °C.
Irradiance → Energy
PV energy produced from measured irradiance.
Monthly Yield Split
Distribute annual generation across months (India typical).