Energia Słoneczna w Dortmund
Roczna produkcja
5267
kWh/year
Okres zwrotu
11
years
Redukcja CO₂
1.8
t CO₂/year
Przykład: instalacja 5 kWp, wartości średnie dla kraju
Często zadawane pytania o Dortmund
Ile energii produkuje instalacja solarna 5 kWp w Dortmund?
Instalacja 5 kWp w Dortmund wytwarza około 5267 kWh rocznie (dane PVGIS).
Ile kosztuje instalacja solarna 5 kWp w Dortmund?
W Dortmund instalacja PV 5 kWp kosztuje około 8,041 € wraz z montażem.
Jaki jest czas zwrotu inwestycji w panele słoneczne w Dortmund?
Przy obecnych cenach energii i taryfach FIT, czas zwrotu wynosi około 11 lat.
Ile CO₂ oszczędza instalacja solarna w Dortmund rocznie?
Instalacja 5 kWp w Dortmund pozwala zaoszczędzić około 1.8 t CO₂ rocznie.
Assumptions and provenance
This example calculation is disclosed in full. Every quantity below enters the figures above exactly as stated — a specialist can recompute them or substitute their own assumptions.
- Payback (cumulative)
- 11 years
- Payback (discounted)
- 13 years
- Payback (static)
- 10,5 years
Sum of the nominal annual net benefits, including degradation, price escalation and replacement costs — not discounted. This is the figure shown above.
The same cash flows, discounted at the nominal rate the net present value uses. Always the later of the two.
Investment divided by the first year's benefit — without price escalation, degradation or replacement costs. Many quotes use this; depending on the assumptions it comes out shorter or longer.
| Quantity | Value | Source / note |
|---|---|---|
| System size | 5 kWp | Example system of this page |
| Investment | 8041 € (1608 €/kWp) | Länderreferenz bei 10 kWp, größendegressiv mit Exponent 0.2 |
| Operating cost | 75 €/a | — |
| Electricity price | 0,370 EUR/kWh | Eurostat nrg_pc_204, Band DC, 2025-S2 |
| Feed-in tariff | 0,0778 EUR/kWh | — |
| Self-consumption share | 30 % | — |
| Degradation | 0,5 %/a | — |
| Price escalation | 2,0 %/a | — |
| Discount rate | 3,0 %/a | Nominal, matching the nominally escalating revenues |
| Horizon | 20 years | — |
| Grid CO₂ factor | 363 g/kWh | Umweltbundesamt, Strommix Deutschland (vorläufig 2024), 2024 |
| Specific yield | 1053 kWh/kWp/a | The figure with which a third-party calculation can be checked |
| Tilt | 35° | — |
| Azimuth | 0° (0 = south) | — |
| Performance ratio | 83,0 % | — |
Data source: PVGIS — Photovoltaic Geographical Information System (EU JRC) · version PVGIS 5.3, radiation database PVGIS-SARAH3 · as of 2024 · licence: Free use with attribution (JRC PVGIS terms of use)
Non-binding initial assessment for an example system, not professional advice. Small wind requires an on-site wind measurement before any investment decision.