From January 1, 2023, the government reduced the value added tax (VAT) on new photovoltaic installations to 3% and increased subsidies for photovoltaic installations for own needs
Thermal solar panels are generally less expensive than photovoltaic ones, costing around 400 to 600 euros per square metre installed, and have high energy yields for heat production alone.
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For a standard 5 kWp roof in Luxembourg, the total cost excluding grants is between €10,750 and €11,500. This price includes the supply and installation of solar panels, excluding options.
Following a unanimous vote by MPs on December 18, 2025, households installing solar panels will now only need to pay the unsubsidized portion of the cost upfront. This removes the major
For the purchase of a photovoltaic system, you can obtain a subsidy of 20% of the investment cost, with a ceiling of € 500 per kWp* (maximum: 30 kWp). *The kilowatt-peak (or kWp) is
Subsidy levels depend on system size: up to €10,000 for a 15 kW installation and up to €2,250 for a co-located 9 kWh battery. A transition period until March 4 lets residents choose
In this Ecoclima guide (2026 edition), we give you realistic ranges, examples of budgets “before subsidies / after subsidies”, and above all a clear reading of what makes the price vary. The
Estimated cost: For a 6 kWp installation, the total cost is approximately 13,900 euros, including panels, inverter, additional equipment and installation. Return on investment: Thanks to
While photovoltaic panel costs in Luxembourg City remain higher than EU averages (€2.10/W vs €1.85/W), generous subsidies and efficient energy pricing create compelling ROI.
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