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Irradiance → Energy
PV energy produced from measured irradiance.
PerformanceCore inputs only — quick sizing with engineering defaults.
Inputs (SI units)
Results
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Engineering Formula
- P = G × A × η [W]
- E = P × t / 1000 [kWh]
Instantaneous DC power equals plane-of-array irradiance × aperture × module efficiency.
Step-by-step Calculation
- 1.Power
G·A·η3,570 W - 2.Energy
P·t/10003.57 kWh
Design Assumptions
- • Steady irradiance for the hour.
- • STC-referenced efficiency.
Engineering Tips
- ◆Use pyranometer POA data, not GHI, for slanted arrays.
Warnings
- ▲Watch for reflections that push POA > 1200 W/m² at edges.
Standards & References
IEC 61724-1ISO 9060 (pyranometers)
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.
Peak Sun Hours
Convert daily insolation to Peak Sun Hours.
Monthly Yield Split
Distribute annual generation across months (India typical).