Subsidies

In Luxembourg, there are subsidies available for solar photovoltaic systems.

From the 5th of January, the Klimabonus state subsidies will change with the implementation of the new legislation (subject to final adoption of the law).

This extends the current scheme by one year and introduces new subsidies for photovoltaic installations and domestic batteries, with greater consideration given to the size and power of the installations.

For offers signed between the 1st October 2024 and 4th March 2026 and for which the final invoice must be issued no later than the 31st December 2026, a transitional phase applies during which two options are available:

the former subsidy scheme, with a subsidy of 50% and a maximum of €1,250/kWc (self-consumption/energy community).

the new Klimabonus subsidy scheme, the full application of which is detailed in the section below ‘From the 5th January 2026’.

This framework applies a new calculation formula based on the installed power and, where applicable, the capacity of the installed battery, and gives you the choice between:

submitting the application for assistance in the traditional way to the Environment Administration
pre-financing using the same new calculation formula, subject to compliance with the pre-financing conditions.

It should be noted that from this period onwards, installations associated with a guaranteed feed-in tariff will no longer be eligible for a subsidy.

Finally, this scheme also provides a subsidy for the installation of a battery after the installation of a photovoltaic system.

Financial aid programmes for sustainable housing and mobility

Photovoltaics

KLIMABONUS 522

The “KLIMABONUS 522” program in Luxembourg offers a €500 per kWp subsidy for solar PV systems up to 50 kWp. The program is available to individuals and businesses.

Learn more: https://voltmax.lu/klimabonus-522/

Air-to-water heat pump

KLIMABONUS 511

The “KLIMABONUS 511” program is a Luxembourgish government initiative that provides financial incentives for the installation of heat pumps. The program offers a subsidy of €511 per kilowatt (kW) of installed capacity, up to a maximum of 10 kW. The subsidy is available to both individuals and businesses.

Learn more: https://voltmax.lu/klimabonus-511/

Intelligent charging station

KLIMABONUS 151

The “KLIMABONUS 151” program is a Luxembourgish government initiative that provides financial incentives for the installation of electric vehicle chargers. The program offers a subsidy of €151 per kilowatt (kW) of installed capacity, up to a maximum of 22 kW. The subsidy is available to both individuals and businesses.

Learn more: https://voltmax.lu/klimabonus-151/