Payback
5.0 years
when cash flow breaks even
Net profit over 25 years
29,955 €
after paying off the system
Year 1 production
6,300 kWh
1,400 kWh per kWp
CO₂ avoided
41.6 t
equivalent to 1,870 trees
Cumulative cash flow, year by year
recoveringin profitannual flow
- Actual self-consumption
- 61%
- Average saving
- 1,582 €
- Return on capital
- 374%
- IRR
- 18.3%
- Cost per kWh
- 0.12 €
How these figures are calculated
- Year 1 production = power × zone yield × exposure factor; it then declines by the set percentage each year.
- Storage increases self-consumption with diminishing returns relative to installed capacity, capped at 92%.
- Savings follow energy price inflation; the grid feed-in tariff is indexed at half that rate.
- The tax deduction is spread over ten equal annual instalments and assumes full tax capacity.
- IRR and NPV are calculated on the nominal cash flows over the full 25-year horizon.
- Italian electricity grid emission factor: 0.28 kg CO₂ per kWh.
Indicative estimates based on the stated parameters. They do not constitute a contractual offer or financial advice.
Results are indicative. For a final design, one of our engineers carries out a site survey and an analysis of your actual consumption.