Roof profile · Differdange
Rue Rattem 30
4658 Oberkorn
These figures reflect the full roof potential (3.7 kWp, Klimabonus grant deducted, paid back in ~9 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 Rattem 30: your roof can fit up to ~9 solar panels (~3.7 kWp). We start at the ideal size for a household — move the slider up to aim higher.
Your turnkey project
- Power
- 3.6 kWp · 9 panels
- Estimated output
- 3 440 kWh/year
- Turnkey price (3% VAT)
- ~8 108 €
The government covers ~46% of your system
Your remaining cost
~4 378 €
That's ~482 €/year in savings — paid back in ~9 years.
Over 25 years, you gain
~7 664 €
Cumulative savings minus your remaining cost · 1 376 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
- 42 m²
- Estimated usable area
- 19 m²
- Installable power
- 3.7 kWp (~9 panels)
- Estimated output
- 3 536 kWh/year
- Estimated savings (self-consumption ~40 %)
- 495 €/year
- Indicative gross investment
- 8 295 €
- Estimated Klimabonus grant
- −3 822 €
- Net investment after grant
- 4 473 €
- Estimated payback (on net)
- ~9 years
- CO₂ avoided
- 1 414 kg/year
- Postal code
- 4658
- Municipality
- Differdange
- Coordinates (WGS84)
- 49.512499, 5.901019
- Cadastre identifier (HID)
- 85089
Estimate · official solar cadastre (Klima-Agence)