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10s Energy — Price Calculator
10s energy

Estimate your electricity bill

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
1
Household
2
Grid costs
3
Smart apps
4
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.
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.
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
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×
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
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.

Ready to switch to smart pricing?

Join our early bird list and be among the first to access the 10s Smart contract.

Get early bird access
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.