Roof profile · Differdange
Rue Franz Erpelding 3
4553 Niederkorn
These figures reflect the full roof potential (5.3 kWp, Klimabonus grant deducted, paid back in ~8 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 Franz Erpelding 3: your roof can fit up to ~13 solar panels (~5.3 kWp). We start at the ideal size for a household — move the slider up to aim higher.
Your turnkey project
- Power
- 5.2 kWp · 13 panels
- Estimated output
- 4 647 kWh/year
- Turnkey price (3% VAT)
- ~10 556 €
The government covers ~48% of your system
Your remaining cost
~5 442 €
That's ~651 €/year in savings — paid back in ~8 years.
Over 25 years, you gain
~10 821 €
Cumulative savings minus your remaining cost · 1 859 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
- Suitable (PV class 1)
- Solar thermal suitability
- Suitable (ST class 1)
- Ground footprint
- 59 m²
- Estimated usable area
- 27 m²
- Installable power
- 5.3 kWp (~13 panels)
- Estimated output
- 4 736 kWh/year
- Estimated savings (self-consumption ~40 %)
- 663 €/year
- Indicative gross investment
- 10 651 €
- Estimated Klimabonus grant
- −5 195 €
- Net investment after grant
- 5 456 €
- Estimated payback (on net)
- ~8 years
- CO₂ avoided
- 1 894 kg/year
- Postal code
- 4553
- Municipality
- Differdange
- Coordinates (WGS84)
- 49.543504, 5.891073
- Cadastre identifier (HID)
- 111189
Estimate · official solar cadastre (Klima-Agence)