The guide · Photovoltaics
Photovoltaics in Luxembourg: the grants, and who fits the panels
Producing your own electricity on your roof is one of the best-supported kinds of work in Luxembourg. What remains is to know what your roof allows, in what order to proceed, and who should fit the panels. This guide answers all three; for the amount, it takes you to the official calculator.
2
grants to simulate
Is it right for you?
The scheme suits you if…
Yes if
- Your roof is sound and you do not plan to redo it within five years
- It is barely shaded by a chimney, a tree or a neighbouring gable
- A significant share of your consumption happens during the day
To check
- The actual orientation and pitch, measured on site
- The state of the roof covering and the capacity of the frame
- The electrical panel and the connection point
Look at this instead
Is your roof at the end of its life? Deal with that first: the insulation guide explains why the envelope comes first.
How it works
How a photovoltaic installation works
Modules fitted on the roof convert sunlight into direct current. An inverter turns it into the alternating current of your domestic installation. Whatever you consume as it is produced is self-consumption; the rest goes onto the grid.
Power is measured in kilowatt-peak. It is chosen on your actual consumption, not on the available surface: an oversized array mostly produces surplus, an undersized one covers nothing. That is the first trade-off to settle with the installer.
Grid connection and its declaration are a matter for your network operator. The installer handles it in most cases; ask for that to be written into the quote, together with commissioning and warranties.
Head to head
Electricity, hot water or storage: the head-to-head
| Compared on | Photovoltaics Quote (Photovoltaics) | Solar Thermal Panels Quote (Solar Thermal Panels) | Energy Storage Battery Quote (Energy Storage Battery) |
|---|---|---|---|
| What it brings | Electricity | Hot water | A shift in when you consume |
| What you need | An unobstructed roof and an inverter | A storage tank | Generation already installed |
| The works | One to two days, on the roof | Roof and plant room | Plant room only |
| What changes day to day | Part of your electricity bill | Domestic hot water, sometimes heating backup | In the evening you use what you produced |
| The limit | Nothing at night, little under heavy cloud | Produces no electricity | Does not increase what you produce |
The figures, at source
What the support covers, and where to price it
We show no amounts on these pages, and that is deliberate: a copied scale becomes wrong without warning its reader. The official tool is updated at source; that is where amounts, ceilings and conditions are to be read.
- What is covered: fitting the modules, the inverter and the connection
- Who pays: the State, under the Klimabonus; some municipalities add their own support
- When: check your scheme’s prior-step rule before signing
The simulator does not show? Open the official calculator (opens in a new window)
The information published here is indicative and does not commit Wedo. It describes public schemes whose rules, conditions and amounts change over time.
For any figure and for filing an application, the official pages of Klima-Agence and of your municipal administration are what count.
Pre-financing
Not having to advance the subsidy
For a solar photovoltaic system, with or without a domestic battery, you do not have to advance the Klimabonus subsidy and then wait for the State to pay it out. The installer deducts it directly from the final invoice.
You choose an installer listed in the register
The scheme only works with an installer entered in the register of installers eligible for pre-financing, kept up to date by the Ministry of the Economy. That is the first thing to check, before signing anything.
The installer files the application for you
The application for aid is filed by the installer on behalf of the beneficiary, not by you. On your side, you fill in a mandate form which the installer sends to the Ministry of the Economy.
The subsidy appears on the final invoice
The subsidy and every down payment already made must be clearly stated on the final invoice and deducted from the total. The down payment the installer may ask of you before that invoice is capped, and the cap is given on the official page.
Who can benefit. The beneficiary is the owner of the residential building, or the person holding immovable property rights on it. In a co-ownership, it is the managing agent or a co-owner appointed by the general meeting. A business whose activity requires a business permit is precluded.
The full conditions, deadlines and caps are on Guichet.lu, the official source, and that is the link to open before signing.
Before you sign
Five points to check
Exposure and shading
Due south remains the most favourable case, but an east-west roof lends itself very well to self-consumption. What often weighs more is the shadow of a chimney or a tree: it is measured on site, not on a map.
The state of the roof covering
Removing and refitting an array to redo the roof underneath costs far more than doing both in one go. Have the roof looked at by a roofer before ordering the modules.
Sizing, in kWp
It is calculated on your consumption, hour by hour where possible, and on what you can move to the daytime. An installer who quotes without having seen a bill is not sizing. They are selling.
Connection and formalities
The connection point, the declaration to the network operator and commissioning are part of the job. Ask for them line by line in the quote, along with the electrical panel if it has to be reworked.
The quote itself
Make and model of modules and inverter, product and yield warranties, the company’s liability insurance, lead time. A price “per kilowatt-peak” without those items cannot be compared.
Finding the tradesperson
Who installs photovoltaics in Luxembourg
The companies
Photovoltaics: the verified companies
They all have a verified profile: each has an active subscription on the Wedo platform and meets our eligibility criteria.
Cool Concept
Verified
35, Rue J-F Kennedy, L-7327 Steinsel
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Air conditioning, Solar panels, Refrigeration and ventilation
Opening hoursClosed
Mon-Fri: 08:00 - 12:00, 13:00 - 17:00 · Sat-Sun: Closed
TEAM ENERGIE
Verified
51, Op Zaemer, L-4959 Bascharage
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Expert in photovoltaic panels, security, home automation, and general electricity in Bascharage, Luxembourg
Opening hoursClosed
Mon-Fri: 08:00 - 12:00, 13:00 - 17:00 · Sat-Sun: Closed
Team Schramm
Verified
16, Z.A.E. Le Triangle Vert, L-5691 Ellange
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Heating, Sanitary, Refrigeration, Electrician and Photovoltaic Installer in Ellange
Opening hoursClosed
Mon-Thu: 08:00 - 12:00, 13:00 - 17:00 · Fri: 08:00 - 12:00, 13:00 - 16:00 · Sat-Sun: Closed
GABBANAelcom
Verified
12, Rue Nicolas Glesener, L-6131 Junglinster
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Technical building equipment in Junglinster
Opening hoursClosed
Mon-Fri: 07:30 - 12:00, 13:00 - 16:30 · Sat-Sun: Closed
Chauffage & Sanitaire Grethen
Verified
Hall 7, Zone Industrielle Rolach, L-5280 Sandweiler
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Installateur Chauffage, Sanitaire, Frigoriste et Electricien à Sandweiler
Opening hoursClosed
Mon-Fri: 08:00 - 12:00, 13:00 - 17:00 · Sat-Sun: Closed
Voltmax
Verified
47, Rue Mathias Tresch, L-2626 Luxembourg
Visit website
Certified electrician specializing in the installation of photovoltaic systems in Luxembourg.
Opening hoursClosed
Mon-Fri: 09:00 - 18:00 · Sat-Sun: Closed
See every company in the Photovoltaics speciality Ordered by number of Google reviews.
Across the country
Photovoltaic installers near you
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Frequently asked questions
Photovoltaics: the questions we are asked
No, that is a stubborn myth. Due south remains the most favourable case, but an east-west roof produces more evenly across the day, which is exactly what self-consumption needs. Shading often weighs more than orientation, and it is measured on site.
It goes onto the grid. There is self-consumption, where you directly use what you produce, and the injection of surplus, framed by your contract and your network operator. That choice changes the sizing, and sometimes the case for adding a storage battery.
They are not the same equipment. Photovoltaics produce electricity, solar thermal panels heat water. Both go on the roof, fall under distinct schemes, and can coexist. The choice rests on your real needs: the electricity bill on one side, domestic hot water on the other.
If the covering is at the end of its life, yes. Doing the two jobs back to back costs far less than removing an array a few years later. Have the roof assessed by a roofer before ordering, especially on an older house.
No. Wedo is the directory and quote platform of the Fédération des Artisans. Grants are processed and paid by the Luxembourg State and, where applicable, by your municipality. Our role stops at the tradesperson: we connect you, free of charge, with the companies in the directory.
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