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Belgium’s Energy Grid: Why It’s Perfectly Positioned for Dynamic Pricing

Belgium’s Energy Grid: Why It’s Perfectly Positioned for Dynamic Pricing

by Poppy | Mar 18, 2026

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See what you'd pay on a standard tariff vs the 10s Smart contract — with the full capacity tariff calculation for Flanders.

CREG-compliant · reference consumption 3,500 kWh/yr · Belgium 2025–2026
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Results
1
Your household
Region
Network area
Capacity tariff rate varies by area. Check your bill or Mijn Fluvius if unsure.
I don't know my consumption
Use Belgian average for a home without EV or heat pump
Base household consumption 2,200 kWh
Lighting, fridge, TV, cooking — everything except your EV and heat pump. Those are added separately in step 3.
Using 2,200 kWh/yr — Belgian average for a home without an EV or heat pump (VREG reference).
2
Capacity tariff Flanders

Since January 2023, part of your grid cost is based on your peak 15-minute draw each month — not just total consumption. The higher your simultaneous load, the higher your capacity tariff.

Average monthly peak 4.5 kW
Your highest 15-min power draw in a typical month. Find yours in Mijn Fluvius — or estimate below.
Minimum floor applied. Everyone pays for at least 2.5 kW regardless of actual usage.

Don't know your peak? Estimate from appliances
EV charging
Charger power
Charges per week3×
Heat pump
Rated power
Hours/day (winter avg)6 h
Oven / hob
Draw when cooking
Washer / dryer
Combined draw
Worst-case simultaneous draw: —.   Estimated average monthly peak: —.

2
Grid costs —

3
Smart appliances on the 10s tariff

These run on real-time Elia quarter-hour pricing. 10s automatically shifts them to the cheapest windows — including negative-price periods when you're paid to consume.

Fetching Elia prices...

EV charging on 10s smart
Scheduled to cheapest overnight windows
I don't know my EV usage
Use Belgian average (3,000 kWh/yr, ~15,000 km)
Battery size
Charges/week3×
Using 3,000 kWh/yr — Belgian average EV driver (~15,000 km at 20 kWh/100km, 90% charging efficiency).

Heat pump on 10s smart
Pre-heats when prices are low (thermal battery logic)
I don't know my heat pump usage
Use Belgian average (3,500 kWh/yr, medium home)
Rated power
Hours/day (winter)6 h
Using 3,500 kWh/yr — Belgian average for a medium semi-detached home with moderate insulation (EPC C–D).

Washing machine
Delayed start to cheapest window
Cycles per week4×

Dishwasher
Runs overnight during cheapest windows
Cycles per week5×
Your estimated annual bill
Full breakdown — standard tariff
Total annual consumption
—
base + smart appliances
Of which on 10s smart tariff
—
EV, heat pump, appliances
Energy (standard rate)—
Distribution (kWh component)—
Distribution fixed charge—
Capacity tariff—
Green certificates—
CHP/cogen levy—
Federal levies—
Elia transmission—
All above ex. VAT
VAT (21%)—
Total estimated annual bill—
What you could pay instead
Three-way comparison
Option 1
Fixed market tariff
—
CREG reference avg 2025
Option 2
Standard dynamic tariff
—
Elia day-ahead avg, no shifting
10s Smart
10s Smart contract
—
Optimised shifting + peak reduction
—
Fixed market tariff—
Standard dynamic—
10s Smart—
Estimated annual saving vs fixed tariff with 10s Smart —
Not included in any figure above

Neither the standard dynamic nor the 10s Smart costs include the supplier's commercial margin. The fixed market reference already embeds a typical margin — the dynamic figures do not.

Belgian dynamic tariff providers typically charge €0.015–0.025/kWh above spot plus an annual fee of approximately €50–80/yr (Luminus: €0.021/kWh + €75/yr; Engie: spot × coefficient + fixed constant).

Indicative margin add-on
—
at your consumption level
Applies to
Standard dynamic & 10s Smart
same for both options
10s Smart — appliance breakdown
Per-appliance cost on real-time Elia pricing
Capacity tariff saving with 10s: Smart shifting reduces your average monthly peak by ~35%, saving —/yr on the capacity tariff alone.

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Step 1 of 4
Tariff data: VREG 2025–2026 (Flanders), CWaPe 2025 (Wallonia), Brugel 2025 (Brussels). Federal levies: CREG 2025. Elia day-ahead prices fetched live from opendata.elia.be (ods134) or 2024 annual averages as fallback (€65/MWh avg, €22/MWh P25). Capacity tariff rates (excl. VAT): Fluvius most areas €52.95/kW/yr; Fluvius West €47.48/kW/yr (= €57.45 incl. VAT). Prosument tariff excluded: no longer applicable for digital meter holders from 2025. EV consumption modelled at 40% of battery capacity per charge session. Smart shifting estimate assumes ~35% monthly peak reduction for households with EV/heat pump under 10s load management. Distribution kWh rates reflect 2024 values — ⚠ update against VNR annual tariff sheets for current year. All figures are estimates. Actual bills depend on usage, contract terms, and real-time market conditions.