Solar PV Subsidies Overview
The Luxembourg government's Klimabonus programme offers an investment premium for installing photovoltaic systems on residential and non-residential buildings. This subsidy can be combined with the reduced 3% VAT rate and the zero-interest Klimaprêt.
Klimabonus 2026 Premium Scale — Solar PV
| Installed Capacity | Premium per kWp | Maximum Premium | Notes |
|---|---|---|---|
| 1 – 10 kWp | €500/kWp | €5,000 | Full rate for small residential installations |
| 10 – 20 kWp | €400/kWp | €4,000 (tier) | Degressive rate from 10 kWp |
| 20 – 30 kWp | €300/kWp | €3,000 (tier) | Commercial installations or large roofs |
| Total maximum | — | €10,000 | For a 30 kWp installation |
Eligibility Conditions
Existing building
The building must have been completed for at least 2 years at the time of application. New constructions are not eligible.
Certified installer
Installation must be carried out by a certified professional established in Luxembourg or the EU.
Technical standards
Panels must comply with IEC 61215 and IEC 61730 standards. Inverters must be VDE-AR-N 4105 certified.
Grid connection
The installation must be connected to the public electricity grid. A feed-in contract with the grid operator is required.
Luxembourg residence
The applicant must be an owner or tenant (with owner's consent) of a property in Luxembourg.
No double subsidies
Installations already receiving investment aid under the modified law of 18 February 2010 cannot additionally benefit from Klimabonus.
Application Process
Get quotes
Compare at least 3 quotes from certified installers. Use our free comparison tool to save time.
Check eligibility
Ensure your building and project meet all conditions. Use the solar cadastre to assess your roof potential.
Submit application
Submit your subsidy application on MyGuichet.lu BEFORE work begins. Attach quotes, site plan, and technical specifications.
Complete installation
Have your panels installed by the chosen contractor. Installation must match the approved quote.
Request grid connection
Contact your grid operator (Creos, Sudstroum, etc.) for connection and commissioning.
Receive the premium
After verification and commissioning, submit final invoices. The premium is paid within 4-8 weeks.
Additional Benefits
3% VAT
Super-reduced rate on the complete installation (materials + labour) for homes over 2 years old. Saving of 14% compared to the standard 17% rate.
Zero-interest Klimaprêt
Interest-free loan up to €50,000 to finance your energy renovation works, including solar PV. Repayment period up to 15 years.
Feed-in tariff
Surplus electricity fed into the grid is remunerated at a regulated tariff. For installations < 10 kWp, approximately 15.83 ct/kWh (2025/2026 tariff).
Tax deduction
Investments in renewable energy may be tax-deductible under certain conditions. Consult your tax advisor.
Frequently Asked Questions
⚠️ Disclaimer: The information on this page is provided for guidance only and does not constitute a contractual commitment. Amounts, conditions, and procedures may change. We strongly recommend consulting official sources (Klima-Agence, MyGuichet.lu, Ministry of Environment) to verify the accuracy and currency of the data before taking any action. Last updated: April 2026.