Solar Incentives in Belgium 2026: Flanders, Wallonia & Brussels Schemes
Last updated July 2026
Belgium has no single national scheme — energy policy is regional. Flanders (Fluvius) has ended the old net-metering "terugdraaiende teller" with the digital meter; Wallonia applies a prosumer tariff and no longer grants green certificates for new small systems; Brussels still issues green certificates. Federal reduced VAT applies to older homes. Confirm terms with your region.
Belgium has no single national solar-incentive scheme: energy policy is devolved to the three regions, so the mechanism you can use depends on where the roof is. Flanders (grid operator Fluvius) has moved everyone to the digital meter and is retiring the old 'terugdraaiende teller' (net metering), replacing it with separate billing of the electricity you take from the grid and the surplus you inject. Wallonia (regulator CWaPE, grid operators such as ORES, RESA and AIEG) no longer grants green certificates to new small home installations and instead applies a 'prosumer tariff' for grid use. Brussels (regulator Brugel, grid operator Sibelga) is the one region still issuing green certificates for new solar systems. On top of the regional rules, the federal government sets VAT. Because the rules, rates and cut-off dates differ by region and change frequently, always confirm the current figures and eligibility with the official regional body before you invest.
Registering your solar system on the grid
Registration of your PV installation with the regional distribution grid operator
Before a solar system can inject surplus power, be metered and (where applicable) earn certificates, it must be notified to and registered with the regional distribution system operator (DSO) — Fluvius in Flanders, ORES/RESA/AIEG/AIESH in Wallonia, and Sibelga in Brussels — together with the required electrical inspection (AREI/RGIE) certificate. The DSO records the installation, arranges the correct (digital) meter and makes the connection official.
Digital meter and the end of net metering (terugdraaiende teller)
Administered by: Flanders — Fluvius (distribution grid operator)
Fluvius has rolled out the digital meter to solar households across Flanders. With a digital meter, the old 'terugdraaiende teller' principle — where the meter simply ran backwards and cancelled out what you injected — no longer applies. Instead, electricity taken from the grid and surplus electricity injected are measured and billed separately, so self-consumption (and often a home battery) becomes the way to get value from production. Fluvius is also phasing out automatic compensation of any remaining rollback-meter credits when households move fully to digital metering.
Who it is for: Owners of grid-connected solar installations in Flanders; the digital meter is mandatory and the injection/offtake model applies to prosumers once the digital meter is active.
Retroactive investment premium (retroactieve investeringspremie)
Administered by: Flanders — VEKA (payment) via Fluvius (processing)
A one-off compensation for households that lost the net-metering benefit when they switched to a digital meter, following a Constitutional Court ruling that ended the guaranteed rollback-meter arrangement. Owners apply through Fluvius after their digital meter is installed; the Flemish Energy and Climate Agency (VEKA) funds the payment. It is a winding-down transitional measure tied to eligible older installations, not a general purchase subsidy for new systems.
Who it is for: Owners of qualifying solar installations in Flanders that had a net-metering (terugdraaiende teller) set-up before the change and that fall within the scheme's capacity and registration conditions; strict application windows apply.
Prosumer tariff (tarif prosumer)
Administered by: Wallonia — CWaPE (regulator) via grid operators (ORES, RESA, AIEG)
Rather than a subsidy, this is a network-use tariff charged to solar prosumers to cover the cost of using the grid when they consume at different times than they produce. Wallonia lets prosumers choose between a capacity-based ('capacitaire/forfaitaire') option keyed to the installation's power and a usage-based ('proportionnel/réel') option that meters actual electricity drawn from the grid and requires a communicating (double-flow) meter. The regulator caps the proportional option so it never costs more than the capacity option. Note: Wallonia no longer grants green certificates to new small residential PV systems.
Who it is for: Residential and small solar producers connected to a Walloon distribution grid; the proportional option requires an active communicating meter.
Green certificates (certificats verts)
Administered by: Brussels-Capital — Brugel (regulator) with Sibelga (grid operator)
Brussels is the only Belgian region still issuing green certificates for new solar installations. After the system is certified by Brugel, the producer is granted certificates in proportion to the green electricity generated, based on meter index readings communicated via Sibelga. The certificates themselves only have value once sold — producers trade them (typically to electricity suppliers who must meet quotas) to earn revenue on top of self-consumption savings. Certification and installer-qualification conditions apply and are periodically tightened.
Who it is for: Owners of certified photovoltaic installations in the Brussels-Capital Region that meet Brugel's technical, certification and installer-qualification requirements.
Reduced 6% VAT on solar for older homes
Administered by: Federal — FOD Financiën / SPF Finances
Belgium's federal tax authority applies a reduced VAT rate to the supply-and-install of solar panels as part of the reduced rate for renovation of private dwellings that are old enough to qualify (measured from the home's first use). Newer homes and new-build generally fall under the standard VAT rate. The contractor applies the reduced rate on the invoice when the legal conditions (dwelling age, private use, work performed by the installer) are met.
Who it is for: Private homeowners installing solar on a qualifying older dwelling used mainly for private purposes, where the installer supplies and fits the panels; new or recently built homes are treated differently.
Before you rely on any figure — check the official source
Solar incentive rates, tariff levels, budgets, eligibility thresholds and deadlines in Belgium change frequently, and several schemes run on limited budgets or fixed application windows. This guide describes each programme at the mechanism level and links to the official administering body so you can confirm the current terms for your own project and year. Never commit to a purchase on the strength of a headline number from a third-party site — including this one.
Once you know which schemes apply, the practical next step is a qualified local installer who can size the system, handle the grid registration and apply for the incentives that fit. Browse solar companies in Belgium → on Solar Directory.
Official sources
Every programme fact on this page is drawn from official government and agency sources. Confirm the current terms directly:
- https://www.fluvius.be/nl/groene-energie
- https://www.fluvius.be/nl/veelgestelde-vragen/digitale-meter
- https://www.fluvius.be/nl/premies/retroactieve-investeringspremies/zonnepanelen
- https://www.wallonie.be/fr/demarches/photovoltaique-sinformer-sur-le-tarif-prosumer
- https://brugel.brussels/themes/energies-renouvelables-11/certificats-verts-503
- https://www.sibelga.be/en/connections-meters/renewable-energy/solar-panels/green-certificates
- https://fin.belgium.be/nl/particulieren/woning/bouwen-verbouwen/verbouwen/verbouwen-btw-tarief
Solar support programmes in Belgium at a glance
| Programme | What it does | Official source |
|---|---|---|
| Digital meter and the end of net metering (terugdraaiende teller) | Metering & injection billing | Official page → |
| Retroactive investment premium (retroactieve investeringspremie) | Net-metering loss compensation | Official page → |
| Prosumer tariff (tarif prosumer) | Grid-use charge for prosumers | Official page → |
| Green certificates (certificats verts) | Tradeable production certificates | Official page → |
| Reduced 6% VAT on solar for older homes | Federal reduced VAT rate | Official page → |
Frequently Asked Questions
Does Belgium still have net metering (the terugdraaiende teller)?
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In Flanders, no longer in the old form. Once the Fluvius digital meter is active, the meter no longer simply runs backwards to net your injection against your consumption; electricity taken from the grid and surplus injected are metered and billed separately, which makes self-consumption and batteries the main way to capture value. Wallonia and Brussels never used the same Flemish rollback model — there prosumers deal with a grid-use (prosumer) tariff and, in Brussels, green certificates. Check your regional grid operator for exactly how injection is treated on your meter.
Can I still earn green certificates for a new home solar system?
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It depends on the region. Brussels (via Brugel, with Sibelga handling meter readings) is currently the only Belgian region still granting green certificates for new photovoltaic installations, subject to certification and installer-qualification conditions. Wallonia has stopped granting them to new small residential systems and now applies its prosumer tariff instead, while Flanders ended green-certificate support for new home systems years ago. Confirm current eligibility with the regional regulator before counting on certificate income.
What VAT rate applies to residential solar panels in Belgium?
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VAT is set federally by FOD Financiën / SPF Finances. A reduced rate applies to supply-and-install of solar panels on private dwellings that are old enough to qualify (age counted from the home's first use) and used mainly for private purposes, while newer homes and new-build fall under the standard rate. The installer applies the correct rate on the invoice once the legal conditions are met, so confirm your home's eligibility and the current rate with the federal tax authority.
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