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Analyses and insights on home batteries in Flanders
Major update: the simulator now accounts for battery ageing
A home battery loses some capacity every year. The simulator now takes this into account, for a more reliable profit calculation. For a typical household, a small profit turns into a small loss.
Read more → 20 September 2026 · In DutchUpdate: set your own discount rate (and the default drops to 3%)
You can now choose the discount rate yourself in the advanced version. The default goes from 5% to 3%, closer to what a household can realistically earn elsewhere.
Read more → 20 February 2026 · In DutchThe rise of the home battery in Flanders: 150,000 and beyond
The latest figures, the growth curve since 2021, and why solar panels, the capacity tariff and the electrification of homes are driving the market.
Read more → 2 January 2026 · In DutchUpdate: levies and contributions now included in the calculation
The simulator now takes the energy contribution and the federal excise duty into account. That means up to 63 EUR in extra savings a year!
Read more → 23 December 2025 · In DutchTOU vs self-consumption: which battery strategy is more profitable?
A comparison of a day/night tariff with self-consumption optimization, using the Fluvius 2026 tariffs. Spoiler: self-consumption wins by 290 EUR a year.
Read more → 16 December 2025 · In DutchFirst simulation results: home battery profitability in Flanders
An in-depth analysis of home battery profitability with self-consumption optimization. Fixed energy contract, single tariff.
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