Plug in solar rules in Belgium

Checked on 7 November 2026 · Confidence: medium

Inverter limit	800 W per household (per guides)
Panels	Not specified
Registration	Wallonia and Brussels: declaration required. Flanders: not mandatory below 800 W.
Batteries	Allowed when the battery inverter is on the Synergrid C10/26 list
Tenants and owners	Not verified yet

Plug and play solar has been legal since 17 April 2025. Only the inverter must appear on the Synergrid C10/26 list, which is updated weekly; panels and batteries do not need to be listed.

What a balcony system produces here

Yield per year in kWh
City	Panels	South, 35°	South, vertical	West, vertical	Own use and savings (south, vertical)
Brussels	800 Wp	807 kWh	583 kWh	404 kWh	393 kWh, €129.53

PVGIS 5.3 data, European Commission Joint Research Centre, calculated on 8 November 2026 with the same model as our calculator. No shade, inverter limit applied. Own use for a household of 2500 kWh a year with nobody home during the day, savings at a typical local electricity price. The Commission is not responsible for our use of the data.

Yield calculator

Guides for this country

Declaring a plug in solar kit in France and BelgiumIn France every kit is declared to Enedis, even without feed in. In Belgium the inverter must be on the Synergrid list and each region has its own rule.

Not yet confirmed

Regional details (Wallonia form UP10, Sibelga in Brussels, Fluvius in Flanders) to confirm with each operator.

Sources

Synergrid C10/26 plug and play list official

This is a summary for orientation, not legal advice. Rules change; check with your grid operator before you install.

Yield calculator