Profitability
Compare your bill with and without solar panels
Change the assumptions freely and see the impact on your bill, your cumulative spend and your payback period. Three scenarios are compared: no panels, with panels, and with panels plus a battery.
Your assumptions
Consumption inferred from the bill: ≈ 7 154 kWh/yr.
No panels
58 560 €
Cumulative spend over 25 yrs
Net : 7 067 €
With panels
44 141 €
Cumulative spend over 25 yrs
Net : 23 236 €
With panels + battery
34 543 €
Cumulative spend over 25 yrs
Net : 32 834 €
Cumulative spend over 25 yrs
Investment included. The lower the curve, the better the scenario.
- No panels
- With panels
- With battery
Yearly bill: before / after
First year, excluding any grants.
Production: self-consumption and surplus
Estimated yearly split based on the self-consumption rate.
- Self-consumed
- Surplus
Comparison table
| Indicator | No panels | With panels | With panels + battery |
|---|---|---|---|
| Investment | 0 € | 9 600 € | 12 600 € |
| Cumulative spend | 58 560 € | 44 141 € | 34 543 € |
| Cumulative savings | 7 067 € | 32 836 € | 45 434 € |
| Net gain | 7 067 € | 23 236 € | 32 834 € |
The comparator applies the same assumptions to every scenario and never forces a positive result. Grants and feed-in tariffs must be checked as of their valid date.
Are your figures realistic?
Have your situation checked with a personalised study.