Luxembourg’s New Solar Subsidies Make Panels Easier and Cheaper for Homeowners

Luxembourg has introduced a major change to how it subsidises solar panels on residential buildings, making it simpler and more affordable for homeowners and building owners. From January 4, the government now lets homeowners receive their subsidy directly through the installer’s invoice, removing the long wait previously associated with reimbursement schemes. This shift is meant to boost uptake of rooftop and façade solar systems across the country.

Under the new model, only installers registered with the Ministry of Economy can pre-finance these subsidies — meaning they deduct the support amount right from the cost of installation. Prospective recipients must ensure they choose an accredited installer to benefit from this scheme. 

To qualify, solar systems must have a minimum capacity of 2 kW and be oriented toward self-consumption. These can be mounted on roofs, façades, annexes such as garden sheds, or integrated into building structures. Battery storage systems paired with solar arrays also qualify for support. 

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 between the new pre-financing scheme or the older reimbursement system if that better suits their needs. 

The government says this measure will eliminate one of the biggest barriers to solar adoption — upfront costs — and will soon extend similar pre-financing support to energy renovations and heat pumps as part of its broader Klimabonus programme.

Read more: pv-magazine.com/2026/01/13/luxembourg-revamps-subsidies-for-solar-on-residential-buildings

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