Belgium is Europe’s most instructive home-energy market: the capacity tariff prices your worst fifteen minutes, the 6% renovation VAT rewards the well-documented project, and the Fluvius registration backlog turns paperwork into a scheduling decision. Home batteries are booming post-subsidy; the business case runs on self-consumption, peak-shaving and dynamic prices.
Buying in Belgium: size the battery to your evening consumption, not the installer’s stock. Claim the 6% VAT in writing for homes over ten years old. Register with Fluvius early — current processing runs months behind. Choose 11 kW charging unless you run a fleet. And normalise every quote: our benchmark shows €1,300–€2,500 of real spread after the fake one is removed.
The rulebook that moves your money: capacity tariff at €53.39/kW of monthly peak (2026); injection at negative prices is now billable — 29,000 prosumers paid to export last year; the battery premium counter closed on 1 July 2026 with no successor; digital-meter registration regime decides whether your battery can trade quarter-hour prices. Wallonia follows its own CWaPE track on compensation cycles.
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