All our news →
15/04/2026

Bonus and subsidy in Luxembourg for residential and industrial photovoltaics

Bonus and subsidy in Luxembourg for residential and industrial photovoltaics

Bonus for industrial projects

Since October 1, 2024, Luxembourg has adjusted its financial aid for industrial photovoltaic installations. Here are the main grants available:

1. Investment aid for photovoltaic plants:

  • Call for projects:A call for projects was launched from July 19 to October 31, 2024, offering investment assistance for the construction and operation of electricity production plants using photovoltaic solar energy.
    Guichet Public Luxembourg
  • Eligible beneficiaries: Any legal entity established in Luxembourg, investing in photovoltaic power plants, could submit an application application.
  • Budget allocated:The call for projects had a maximum budget of 23 million euros, distributed over five lots depending on the size and type of the installations.
  • Selection criteria:Projects requesting the least aid in relation to the installed capacity were favored, within the limits of the available budget.

2. “Klimabonus” program:

  • Aid for self-consumption installations: From October 1, 2024, aid for self-consumption photovoltaic installations has been reduced to 50% of actual costs, with a ceiling of €1,250 per kWp.
    Gouvernement Luxembourg
  • Eligibility conditions:The peak power of the installation must be less than or equal to 30 kWp, and the systems must be installed on the roof or facade of a building, or integrated into the envelope of a building.
    Solar Depot

3. Help for installations in injection mode:

  • Investment aid: A subsidy of 20% of investment costs is available for installations that inject energy into the network, capped at €500 per kWp.
    Capner
  • Tariff guaranteed injection:The State guarantees a tariff for electricity injected into the network for 15 years, the amount of which depends on the date of connection of the installation.

Important notes:

  • Taxation: Income from photovoltaic installations greater than 10 kWp is taxable.
    Capner
  • Municipal aid: Some municipalities offer additional subsidies for the installation of panels photovoltaic. It is recommended to consult local authorities for further information.

For detailed and up-to-date information, please consult the official website of the Luxembourg government or contact the Environment Administration.

Installations above 30 kWp

For industrial photovoltaic installations in Luxembourg whose power exceeds 30 kWp, the financial aid available is mainly structured around calls for specific projects. Here are the main options:

1. Calls for projects for large photovoltaic installations:

  • Investment assistance:The Luxembourg government regularly launches calls for projects aimed at supporting the construction and operation of electricity production plants using photovoltaic solar energy. These calls are intended for large-scale installations, generally above 30 kWp.
    Guichet Public Luxembourg
  • Selection process: Projects are evaluated according to the amount of aid requested in relation to installed capacity, thus favoring the most competitive proposals. Interested companies must submit their application within the deadline and respect the criteria defined in the specifications of each call.

2. Injection rates for large installations:

  • Degressive pricing:Large capacity photovoltaic installations benefit from specific injection rates, which vary depending on the installed power and the date of commissioning. For example, for installations between 30 kWp and 100 kWp, the injection rate was 0.1194 €/kWh in 2023, with a gradual decrease planned for the following years.
    Voltmax
  • Contract duration: These rates are generally guaranteed over a period of 15 years, providing financial stability to investors.

3. Specific conditions for installations between 30 kWp and 200 kWp:

  • Extended accessibility: Since 2020, aid for photovoltaic installations with a power between 30 kWp and 200 kWp has been directly accessible to farmers, small and medium-sized enterprises (SMEs) and tertiary buildings, without the obligation to go through a civil society or cooperative.
    Gouvernement Luxembourg
  • Preferential rates:The cooperative companies, however, maintain a slightly more advantageous rate for these power slices.

Important notes:

  • Taxation:Revenues generated by photovoltaic installations greater than 10 kWp are subject to taxation.
    Capner
  • Evolution of aid:The conditions and amounts of aid may change depending on policies energy costs and allocated budgets. It is therefore recommended to regularly consult official publications and contact the competent authorities for up-to-date information.

For detailed and up-to-date information, please consult the official website of the Luxembourg government or contact the Environment Administration.

Bonus for residential projects in Luxembourg

Financial aid for the installation of photovoltaic panels in Luxembourg is still in force, but the conditions have changed since October 1, 2024. Here are the current details:

1. Self-consumption mode:

  • Investment aid: 50% of the actual costs of the installation, with a ceiling of €1,250 per kWp. For a 10kWp installation, the maximum aid therefore amounts to €12,500.
    Luxembourg Government

2. Injection mode with guaranteed injection rate:

  • Investment aid: 20% of the actual costs of the installation, capped at €500 per kWp, i.e. a maximum of €5,000 for a 10kWp installation.
    Luxembourg Government
  • Guaranteed injection tariff:The State continues to guarantee a tariff for electricity injected into the network for 15 years, the amount of which depends on the date of connection of the installation.

Important notes:

  • Aid validity period:This aid applies to installations ordered from October 1, 2024.
  • Taxation:Income from photovoltaic installations greater than 10kWp is taxable.

It is also recommended to consult municipal aid, as some municipalities offer additional subsidies for the installation of photovoltaic panels.

For detailed and up-to-date information, please consult the official website of the Luxembourg government or contact the Environment Administration.