Fluvius Relighting Premium Ends on 1 January 2027: What Companies Must Arrange Before 31 December 2026
The Fluvius relighting premium for companies in Flanders stops on 1 January 2027. Conditions, formula, examples up to € 20,000 and the timeline to invoice and apply before 31 December 2026.
The Flemish relighting premium paid out by grid operator Fluvius ends on 1 January 2027. You can still apply up to and including 31 December 2026, for a relighting with a final invoice no older than two years and dated before 1 January 2027. Per room that is up to € 15,000, or € 20,000 with daylight control.
- The relighting premium for non-residential buildings in Flanders ends on 1 January 2027.
- Submit your application via Mijn Fluvius by 31 December 2026 at the latest. The final invoice may then be no older than 24 months and must be dated before 1 January 2027.
- Did you have a relighting carried out in 2025 without applying for the premium? You still can.
- The building or room must be at least 15 years old, and the premium applies to indoor lighting only.
- Maximum € 15,000 per room without daylight control and € 20,000 with it, never more than the invoice amount excluding VAT.
- The amount depends on floor area, lux and the new installed power, not on the power of the old lamps.
What is changing?
The Flemish Government is ending the premium as a result of budget decisions; the decree was approved in principle on 13 February 2026. From 1 January 2027 Fluvius no longer accepts applications, and a relighting with an invoice dated from that day no longer qualifies. Always check the current conditions on fluvius.be before you order.
Conditions in short
- Non-residential building in the Flemish Region. For example an office, shop or factory hall, connected to the electricity grid.
- At least 15 years old. The building or room was connected or first used at least 15 years ago. For an application in 2026 that means 2011 at the latest.
- Indoor lighting only. Outdoor lighting, including under a canopy, does not count.
- Relighting, not relamping. The old luminaires and lamps are completely removed and disposed of, and the new installation follows a lighting study. Only replacing tubes with LED tubes does not count.
- Lighting study per room. With surface areas, reflectances, maintenance factor and the average illuminance on the task areas. Clightstore prepares a DIALux study free of charge.
- Absence detection. The lighting switches off or dims automatically when the room is empty, unless you give thorough reasons why that is not possible.
- Certified luminaires. The luminaires carry an ENEC mark or an EU electrical safety certificate from an accredited body. A CE marking alone is not enough.
- Carried out by a contractor. The contractor completes the Fluvius certificate with the technical data.
- Complete invoice. With address, delivery and installation date, make, type and power of the luminaires, and the price of materials and installation. The luminaires must match the lighting study exactly.
- De minimis. The premium is state aid under Regulation (EU) 2023/2831; the total over three years may not exceed € 300,000.
How much is the premium?
Fluvius calculates with two power values. Pi is the installed system power of the new installation. Ps is the maximum permitted power that the official calculation sheet derives from floor area, required lux, reflectances and maintenance factor. The power of your old lamps plays no role, and Pi may not exceed Ps.
Without daylight control: S = 100 × (1 + (2 − Pi/Ps)) × Ps × 0.0015, capped at € 15,000 per room.
With daylight control: S = 150 × (1 + (2 − Pi/Ps)) × Ps × 0.0015, capped at € 20,000 per room.
As a rule of thumb this gives between € 0.30 and € 0.45 per watt of permitted power without daylight control, and one and a half times that with it. Daylight control means luminaires that dim or switch automatically when enough daylight enters, for example under roof lights.
| Room | Required | Permitted power (Ps) | New installation (Pi) | Premium without daylight control | With daylight control |
|---|---|---|---|---|---|
| Hall 1,000 m² (50 × 20 m, 8 m high) | 200 lux | approx. 3,450W | 14 × 150W LED high bay = 2,100W | approx. € 1,240 | approx. € 1,860 |
| Hall 3,000 m² (100 × 30 m, 10 m high) | 200 lux | approx. 9,740W | 39 × 150W LED high bay = 5,850W | approx. € 3,500 | approx. € 5,260 |
| Workshop 450 m² (30 × 15 m, 5 m high) | 300 lux | approx. 2,260W | 30 × 55W tri-proof = 1,650W | approx. € 770 | approx. € 1,160 |
The amounts are indicative and were recalculated in the Fluvius calculation sheet (version March 2025). Assumptions: maintenance factor 0.8, reflectance ceiling 70%, walls 50% and floor 20%, and the full floor as task area. The amount in your file follows from your own lighting study.
Luminaires that qualify for a relighting with lighting study
Timeline: what to arrange before 31 December 2026
- Now: send floor plan, height and current lighting. You receive a free DIALux lighting study and a quote within a few days.
- November: order the luminaires (delivery in 2–5 working days) and book your electrician.
- November–December: installation, disposal of the old luminaires, contractor certificate and dated photos per room.
- By 31 December 2026: final invoice dated in 2026 and application in Mijn Fluvius. Add invoice, lighting study, calculation sheet, data sheets, proof of certification, certificate, photos and floor plan.
Electricians are busy in December. Did you already have a relighting done since early 2025? Then you only need to submit the application, as long as the final invoice is no older than two years.
Why the retrofit pays off without the premium too
Calculation example (assumptions: 40 HPI luminaires of 400W (approx. 440W with ballast) replaced by 40 LED high bays of 150W, 2,500 operating hours a year, electricity price € 0.25/kWh): the old luminaires cost € 11,000 a year in electricity. With 40 LED high bays of 150W that is € 3,750. The saving of € 7,250 a year pays back the luminaires and installation within the year; the premium is a bonus on top. Run your own numbers in LED Payback Period Calculator. Lighting levels per zone are in How Much Lux Do You Need? and the number of luminaires in Warehouse Lighting Calculation. Daylight control is explained in DALI and Lighting Control.
Frequently asked questions
Until when can I apply for the relighting premium?
Up to and including 31 December 2026. The final invoice may then be no older than two years and must be dated before 1 January 2027.
I already had a relighting done in 2025. Can I still get the premium?
Yes, if you apply within two years of the final invoice and by 31 December 2026 at the latest, and the file meets all conditions.
How old must the building be?
At least 15 years at the time of application. Fluvius checks this against the date of connection to the grid.
Does outdoor lighting count?
No. The premium applies to indoor lighting only; lighting under a canopy is excluded.
Do the luminaires need a certification mark?
Yes. Fluvius asks for an ENEC mark or an EU electrical safety certificate from an accredited body. The CE marking is mandatory but does not count as a certification mark.
Does replacing tubes with LED tubes qualify?
No. Relighting requires that the old luminaires are completely removed and that the new installation follows a lighting study.
Can I install the luminaires myself?
Not for the premium. The works must be carried out by a contractor who completes the certificate.
Does a lighting study count if Clightstore prepares it?
Yes, a DIALux lighting study is part of the file. We prepare it free of charge for your project.
Is there a premium in Wallonia or Brussels?
The Fluvius premium applies in Flanders only. Wallonia and Brussels have their own schemes with other conditions.
Last checked: 13 November 2026, Nick Cuppens, Clightstore. Source: Fluvius, relighting premium.
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