Explore how panel and battery size affect self-sufficiency, grid export, and payback time for your home.
Panel tilt angle
Panel orientation
Usage pattern over the day
Sun hours by month
Peak sun hours (NASA) / real sunshine hours (Open-Meteo)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| TotalTotal sun hours | 56 / 68 | 73 / 92 | 112 / 146 | 138 / 189 | 167 / 236 | 174 / 249 | 177 / 264 | 158 / 236 | 120 / 177 | 87 / 121 | 57 / 69 | 47 / 56 |
| Avg/dayAvg sun hours/day | 1.8 / 2.2 | 2.6 / 3.3 | 3.6 / 4.7 | 4.6 / 6.3 | 5.4 / 7.6 | 5.8 / 8.3 | 5.7 / 8.5 | 5.1 / 7.6 | 4.0 / 5.9 | 2.8 / 3.9 | 1.9 / 2.3 | 1.5 / 1.8 |
Payback period
8.1 yr
Annual savings
€1046
Self-sufficiency
85%
System cost
€8500
Self-consumed
3111 kWh/yr
Exported to grid
2260 kWh/yr
Imported from grid
539 kWh/yr
Solar produced
23.2 kWh