Roof profile · Sanem
Rue des Alliés 3
4412 Belvaux
These figures reflect the full roof potential (2.6 kWp, Klimabonus grant deducted, paid back in ~11 years). You don't have to equip the entire roof: set the size that suits you in the simulator below — from the most affordable entry (~3 482 €) to the full potential.
Actual roof irradiation · solar cadastre (aerial view + heatmap)
Calculator · Klimabonus 2026
Size your system
We start at the ideal size for a household. Drag to aim higher — the government grant and your remaining cost recalculate live.
Rue des Alliés 3: your roof can fit up to ~7 solar panels (~2.6 kWp). We start at the ideal size for a household — move the slider up to aim higher.
Your turnkey project
- Power
- 2.8 kWp · 7 panels
- Estimated output
- 2 708 kWh/year
- Turnkey price (3% VAT)
- ~6 884 €
The government covers ~43% of your system
Your remaining cost
~3 909 €
That's ~379 €/year in savings — paid back in ~10 years.
Over 25 years, you gain
~5 571 €
Cumulative savings minus your remaining cost · 1 083 kg CO₂ avoided/year.
Indicative estimate (official Klimabonus scale + LU market prices). Amounts to be confirmed by quote and via the Klima-Agence calculator.
Roof data
Characteristics from Luxembourg's official solar cadastre.
- Photovoltaic suitability
- Very suitable (PV class 2)
- Solar thermal suitability
- Very suitable (ST class 2)
- Ground footprint
- 30 m²
- Estimated usable area
- 13 m²
- Installable power
- 2.6 kWp (~7 panels)
- Estimated output
- 2 515 kWh/year
- Estimated savings (self-consumption ~40 %)
- 352 €/year
- Indicative gross investment
- 6 650 €
- Estimated Klimabonus grant
- −2 780 €
- Net investment after grant
- 3 870 €
- Estimated payback (on net)
- ~11 years
- CO₂ avoided
- 1 006 kg/year
- Postal code
- 4412
- Municipality
- Sanem
- Coordinates (WGS84)
- 49.509750, 5.922506
- Cadastre identifier (HID)
- 77033
Estimate · official solar cadastre (Klima-Agence)