250 solar panels
for your organisation
132.50 kWp · 530 Wp per panel · 25-year financial analysis · Personalised report
250 panels
132.50 kWp
€104,675 investment
+2%/year energy price
250 solar panels
6 years
Payback period
4.97×
ROI (net)
€370K
Net return after 25 years
119 MWh
Cheerful Year 1
Investment in a PV system (CAPEX)
€104.675
132.50 kWp · €0.79/Wp · no subsidy in this scenario
Total energy turnover over 25 years
€501.271
€0.14/kWh starting price + 2% annual increase
Total maintenance costs over 25 years
€26.500
OPEX + inverter replacement in years 10 and 20
Energy price, year 25
€0,225
Tov starting price €0.14/kWh (+61% over 25 years)
Financial milestones
1
Year 1Start of operation · 1908 MWh
€16.165
6
Payback periodInvestment recouped · Year 6
€0
10
Year 10 *Inverter replacement this year
€11.917
20
Year 20 *Inverter replacement this year
€14.957
25
Final standings for year 25Net cumulative return
+€398.004
* Inverter replacement (€6,625) this year
Model assumptions
| Number of panels | 250 |
|---|---|
| Power per panel | 530 Wp |
| Total assets | 132.50 kWp |
| Yield per kWp | 900 kWh/kWp/year |
| Panel degradation | 0.51 TP3T per year |
| DC installation costs | €0.79/Wp |
| Starting price for energy | €0.14/kWh |
|---|---|
| Rise in energy prices | 2% per year |
| OPEX | €4/kWp/year |
| Inverter replacement | Year 10 & 20 |
| Weight per panel | 14.5 kg |
| Roof load | 3–7 kg/m² |
Q3 2026
Start this season by saving money
Installation in Q3 2026 will deliver an immediate return. Summer production means maximum yield in your first quarter.
~42 MWh
Expected production for Q3
€6K
Estimated savings for Q3
17 tonnes
CO₂ savings in Q3
Ready to get started?
Request a no-obligation quote or get in touch with our team for a personalised consultation about your installation of 250 Solarge panels.
Disclaimer
The results of this calculation are intended solely as an indicative estimate and are provided for information purposes only. The savings, payback period, ROI and CO₂ reduction shown are based on the details you have entered and a number of assumptions. Actual results may vary and depend on various factors, including but not limited to energy prices, energy consumption, location, roof structure, weather conditions, subsidy schemes, grid congestion, installation costs and future market developments.
No rights may be derived from the results of this calculation. Solarge accepts no liability for any decisions, investments or losses arising from the use of this calculation. For an accurate analysis and a bespoke business case, we recommend a personal consultation with one of our specialists.
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