Your System Details
Enter your solar system specifications
Total capacity in kWp
kWp
Affects expected generation
Direction panels face
Years since installation
years
Monthly Generation Readings
Enter your kWh readings for each month (leave blank if unknown)
January
February
March
April
May
June
July
August
September
October
November
December
3,200
Actual Generation (kWh)
3,400
Expected Generation (kWh)
-200
Difference (kWh)
800
kWh per kWp
Monthly Comparison
Your Generation
Expected
Monthly Breakdown
| Month | Actual (kWh) | Expected (kWh) | Difference | Performance |
|---|
Analysis & Recommendations
Disclaimer: Expected generation is based on UK regional averages and typical system performance. Actual output varies due to weather, shading, panel cleanliness, and system efficiency. Significant underperformance warrants professional inspection. Small variations (±10%) are normal.