Cheapest gas supplier in Belgium — 2026
Compare natural gas suppliers in Belgium for a typical household (17,000 kWh/year): annual cost, price per kWh and contract type.
All natural gas plans, compared
7 plans · Typical profile 17,000 kWh/year · ref. Wallonia · August 2026
| Supplier & plan | Annual cost | Price per kWh | Contract type | Source | Fixed fee | Regions | Commitment | |
|---|---|---|---|---|---|---|---|---|
| Ecofix — Flexy Online★ Best price | €1,577 /yr | 0.0449 € | Variable | Natural gas | €145.43/year | Wallonia · Flanders | No commitment | View offer |
| ENGIE — Basic Variable | €1,614 /yr | 0.0464 € | Variable | Natural gas | Standard | National | 1 month | View offer |
| OCTA+ — Flux | €1,622 /yr | 0.0444 € | Variable | Natural gas | Standard | Wallonia · Flanders | No commitment | View offer |
| DATS 24 — Natural Gas Variable | €1,629 /yr | 0.0464 € | Variable | Natural gas (+ biogas) | €173.93/year | Wallonia · Flanders | No commitment | View offer |
| TotalEnergies — Pixel Blue Variable | €1,754 /yr | 0.0538 € | Variable | Natural gas | ~€170/year | National | No commitment | View offer |
| Eneco — Natural Gas Flex | €1,838 /yr | 0.0570 € | Variable | Natural gas | ~€200/year | Wallonia · Flanders | No commitment | View offer |
| Mega — Smart Fixed | €1,894 /yr | 0.0577 € | Fixed 2 years | Natural gas | €111.30/year | Wallonia · Flanders | 2 years | View offer |
Cheapest in August 2026: Ecofix Flexy Online (~€1,577/year, 0.0449 €/kWh), taking the top spot back from ENGIE with a ~€89 drop over the month. DATS 24 Variable also falls sharply, from ~€1,723 to ~€1,629/year (0.0464 €/kWh). ENGIE (~€1,614) and OCTA+ Flux (~€1,622, best price per kWh at 0.0444 €) hold steady. Mega Smart Fixed, by contrast, rises to ~€1,894/year (0.0577 €/kWh) and becomes the most expensive offer tracked: the risk premium on fixed rates has widened. In Brussels, the residential gas market is more limited (ENGIE, TotalEnergies, Luminus, Bolt).
Indicative prices from June 2026 (sources: CREG, CallMePower, Selectra). Energy prices change every month — always check the current offer with the supplier.
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