Energía Solar en Lieja
Rendimiento anual
5301
kWh/year
Período de amortización
10
years
Reducción CO₂
0.7
t CO₂/year
Ejemplo: instalación 5 kWp, valores medios del país
Preguntas frecuentes sobre Lieja
¿Cuánta electricidad produce un sistema solar de 5 kWp en Lieja?
Un sistema de 5 kWp en Lieja genera aproximadamente 5301 kWh al año (datos PVGIS).
¿Cuánto cuesta una instalación solar de 5 kWp en Lieja?
En Lieja, una instalación FV de 5 kWp cuesta aproximadamente 6,605 € instalación incluida.
¿Cuál es el periodo de amortización solar en Lieja?
Con los precios actuales de la electricidad y las tarifas de retribución, la amortización es de aproximadamente 10 años.
¿Cuánto CO₂ ahorra un sistema solar en Lieja al año?
Un sistema de 5 kWp en Lieja ahorra aproximadamente 0.7 t de CO₂ al año.
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)
- 9,9 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 | 6605 € (1321 €/kWp) | Länderreferenz bei 10 kWp, größendegressiv mit Exponent 0.2 |
| Operating cost | 70 €/a | — |
| Electricity price | 0,320 EUR/kWh | Eurostat nrg_pc_204, Band DC, 2025-S2 |
| Feed-in tariff | 0,0650 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 | 143 g/kWh | EEA, greenhouse gas emission intensity of electricity generation (seed), 2023 |
| Specific yield | 1060 kWh/kWp/a | The figure with which a third-party calculation can be checked |
| Tilt | 35° | — |
| Azimuth | 0° (0 = south) | — |
| Performance ratio | 83,2 % | — |
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.