V2H in Belgium: Legal, Possible, and Mostly Misunderstood

Your car can power your home — if the grid paperwork says so. The current state in Flanders, Wallonia and the Netherlands.

Home charging has quietly become the second-largest controllable load in the electrified home, and the one with the most software leverage. The hardware race is over; the tariff-integration race is not.

The evidence base for this piece: our reader quote benchmark (31 normalised quotes from Flanders and Wallonia), installer interviews across the three markets, and the primary documents linked in the text. Where a number could not be verified against a primary source, it does not appear here.

Three findings carry most of the weight. First, the spread between careful and careless outcomes keeps widening — the market rewards preparation more each quarter. Second, the gap is increasingly in software and service rather than hardware: two identical systems diverge by dispatch settings and claim handling, not by cells. Third, the households with the best outcomes share one habit: they get everything in writing before signing — the exclusions list, the warranty document, the registration confirmation.

For Belgium, read this through the capacity tariff and the 6% renovation VAT. For the Netherlands, through the end of salderen and supplier feed-in charges. For Germany, through certification culture and the §14a framework. One analysis, three invoices — the regional sections above carry the specifics.

What to do with it: the action list at the end of this piece is designed to be finished in one evening. If you are mid-purchase, run your quotes through Quote Check after reading; if you already own the hardware, the checklist tells you which setting or document to verify this week.

The numbers behind the headline: a home charger installs at €800–€1,600; the average EV adds roughly 2,800 kWh to annual household consumption; tariff-aware scheduling saves €150–€310 a year; and 11 kW three-phase covers overnight needs for 90% of households, making 22 kW an overspend for almost everyone.

A case from our files makes it concrete. A household near Mechelen moved 2,900 kWh of annual charging onto a tariff-aware schedule: 61% of energy now lands in the cheapest quartile of quarter-hours, cutting the monthly charging bill from €82 to €54. The car leaves full every morning; the only change is the clock.

Who should act on this analysis, and how urgently: households mid-purchase (this week — it changes what you sign); recent buyers (this month — settings and documents can still be corrected); owners of older systems (this quarter — registration, warranty and tariff positions deserve a review); and everyone else — file it under ‘the rules moved again’, because they will keep moving.

Method and sources as noted inline. This analysis is independent; no manufacturer or installer reviewed it before publication. Corrections: marked in the article within 48 hours.