Solar Plant Yield Calculator
Estimate average monthly generation across Ukrainian regions considering tilt, azimuth, and PR
System Parameters
Fill in the parameters — the result will update instantly
Monthly Yield
Formula: PSH × days × power × PR × orientation factor
| Month | PSH, kWh/m²/day | Days | Yield, kWh |
|---|---|---|---|
| Annual Total | — | ||
Important
The data provided is indicative and depends on the passport characteristics of the equipment, project documentation, and operating conditions. The company is not responsible for the consequences of using preliminary calculations without additional verification. Final technical solutions, specifications, and prices are determined after verifying the initial data and are fixed by a separate specification/contract.
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Contact UsExplanation and Reference
How we calculate and what the parameters mean
Equivalent of full sun hours per day, kWh/m²/day. Gives an idea of the available solar energy in the region.
Efficiency coefficient of the solar plant, taking into account inverter, cable, temperature, and soiling losses, etc. Typically 75–90%.
Azimuth 180° = south. Optimal tilt for most regions is 30–35°; deviation reduces generation.
Methodology
Formula: kWh = PSH × days × power (kW) × PR × orientation factor.
Power: use DC or AC — the main thing is to be consistent in comparisons.
Orientation factor: a soft model that reduces yield upon deviating from the south and optimal angle.
PSH by months: typical climatic series for Ukrainian cities; values are averaged.
Limitations
Not included: shading, module degradation, snow/dirt, power clipping, grid limitations.
Temperature: impact is included generally through PR, without a detailed temperature profile.
Calendar: standard days in a month are used (no leap years for simplicity).
Tips
PR for preliminary assessment: 0.80–0.85 for residential solar plants, 0.75–0.88 for commercial systems.
Optimization: if orientation ≠ south — increase PR by cleaning panels and high-quality wiring.
Verification: verify the configuration with equipment data sheets before a commercial proposal.
How to Read the Result
Monthly series: helps plan consumption/storage and compare scenarios.
Annual total: a benchmark for payback and choosing an inverter/storage.
Scenarios: change tilt/azimuth/PR and compare the annual total for sensitivity.
