Top 7 best green electricity suppliers in Belgium (2026)
The ranking of 100% renewable electricity suppliers in Belgium for a typical household (3,500 kWh/year). Annual cost, real energy origin (Belgian production or guarantees of origin) and regional coverage.
Updated
Comparison table
Methodology : Only electricity plans marketed as 100% renewable are included. Ranked on total annual cost for 3,500 kWh/year, recorded on 1 July 2026 (Wallonia reference). We distinguish traceable Belgian production (cooperatives, Walloon wind, Belgian solar) from coverage via guarantees of origin bought on the European market — both are legal, but their real-world effect differs.
Sources : CREG — price comparison tools · CompaCWaPE (Wallonia) · Mon Énergie Verte — green supplier comparison
Frequently asked questions
Is green electricity more expensive in Belgium?
No. As recorded on 1 July 2026, the cheapest plan on the Belgian market (Ecopower, ~€1,252/year) is a 100% green plan. The green premium is a myth: it depends on the supplier, not on the electron.
What is the difference between Belgian green production and guarantees of origin?
Ecopower and Cociter physically produce the electricity they sell, in Belgium. Large suppliers (TotalEnergies, Mega, Eneco) cover your consumption with guarantees of origin bought on the European market. Both are legal and auditable, but the effect on local production is not the same.
Do I have to buy shares to join a cooperative?
Yes, with both Ecopower and Cociter: you become a member. The share is refundable when you leave, but it is an entry ticket to plan for — and both suppliers are limited to a single region.
Are green plans available in Brussels?
Yes: DATS 24, Mega, TotalEnergies, Bolt and Eneco cover all three regions. Ecopower (Flanders) and Cociter (Wallonia) do not supply Brussels.