Compare electricity contracts
See how monthly fees, markups and your consumption change the cost of two market-linked offers and one fixed-price offer.
Start with an example, then enter your own terms. These are invented prices, not live market data or supplier quotes. All amounts are before VAT.
Your scenario, compared
Estimated monthly amounts before VAT, including only the costs you entered. These are not verified final bills or supplier recommendations.
Market-linked A
per month, after the illustrated shift
Lowest in this scenario
- Before shifting
- Illustrative shifting saving
- Difference from fixed offer
- 12 identical months
Market-linked B
per month, after the illustrated shift
Lowest in this scenario
- Before shifting
- Illustrative shifting saving
- Difference from fixed offer
- 12 identical months
Fixed-price offer
per month, after the illustrated shift
Lowest in this scenario
- Before shifting
- Illustrative shifting saving
- Difference from fixed offer
- 12 identical months
Shared costs included per month: . A negative difference means cheaper than the fixed offer; a positive difference means more expensive. Different totals can look identical after rounding.
Break-even points — without shifting
At the consumption you entered, each market-linked offer costs the same as the fixed offer at this weighted wholesale price. Below this threshold it is cheaper; above it, more expensive. Shared costs cancel out.
- Market-linked A
- Market-linked B
A and B cost the same at this monthly consumption, using your entered market price and no shifting:
How the calculation works
Market-linked cost = monthly fee + consumption × (weighted market price × multiplier + markup) + shared costs. Fixed-price cost = monthly fee + consumption × fixed energy rate + shared costs.
Illustrative saving = moved consumption × wholesale price difference × contract multiplier. Total consumption stays the same. Moving consumption does not reduce the cost of a flat fixed-rate offer in this model.
Check your contract: price caps, negative-price rules, tiered charges, capacity tariffs, solar export, discounts, exit fees and VAT are not modeled. Shared costs are assumed unchanged by shifting. Actual costs depend on prices and your consumption at each interval.
“12 identical months” simply multiplies this scenario by 12. It is not a yearly forecast: seasonal consumption and market prices change. Savings are illustrations, not guarantees.