Energia Solare a Bonn
Resa annuale
5358
kWh/year
Tempo di ammortamento
10
years
Riduzione CO₂
1.9
t CO₂/year
Esempio: impianto da 5 kWp, valori medi del paese
Domande frequenti su Bonn
Quanta energia produce un impianto solare da 5 kWp a Bonn?
Un impianto da 5 kWp a Bonn produce circa 5358 kWh all'anno (dati PVGIS).
Quanto costa un impianto solare da 5 kWp in Bonn?
In Bonn, un impianto FV da 5 kWp costa circa 8,041 € installazione inclusa.
Qual è il periodo di ammortamento del solare a Bonn?
Con i prezzi attuali dell'energia e le tariffe di incentivo, il periodo di ammortamento è di circa 10 anni.
Quanta CO₂ risparmia un impianto solare a Bonn ogni anno?
Un impianto da 5 kWp a Bonn risparmia circa 1.9 t di CO₂ all'anno.
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)
- 10 years
- Payback (discounted)
- 12 years
- Payback (static)
- 10,3 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 | 1072 kWh/kWp/a | The figure with which a third-party calculation can be checked |
| Tilt | 35° | — |
| Azimuth | 0° (0 = south) | — |
| Performance ratio | 82,7 % | — |
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.