Energy costs calculator
What does your tariff really cost? From consumption, unit price and standing charge, the calculator works out your annual costs, the monthly amount and your average price per kilowatt hour.
Open the calculatorCosts & savings
Is switching worth it? Calculate your savings
Compare your current tariff with a new offer. The calculator separates the first year with the bonus from the second year without the bonus – so you can see whether an offer is cheaper in the long term.
Result
- Savings in the first year
- Current tariff per year
- New tariff in the first year (with bonus)
- New tariff from the second year
- Savings from the second year
- New monthly instalment (approx.)
Would you like a specific quote? We compare the tariffs of the suppliers we work with and send you a quote as a PDF.
Request a quoteThe results are non-binding estimates for guidance only. What counts is your bill, your contract and your supplier's prices.
How it is calculated
For both tariffs: annual costs = consumption × unit price + 12 × standing charge. A one-off bonus is only deducted from the first year. The saving is the difference compared with the current tariff.
If the saving from the second year is negative, the offer is only cheaper because of the bonus. In that case, compare again in good time before the initial term ends.
- Check the bonus conditions: it is often only paid after 12 months of supply.
- Also compare the price guarantee, contract term and notice period.
Worked example: 2,500 kWh of electricity
Current tariff: 40 ct/kWh and a standing charge of €14 a month – that is €1,168 a year. New tariff: 33 ct/kWh and a standing charge of €13 – that is €981 a year. The saving is €187 a year. With a €100 bonus, the household saves €287 in the first year, and then €187 a year after that.
- Current tariff per year: €1,168.00
- New tariff from the second year: €981.00
- Savings from the second year: €187.00
Frequently asked questions
Is it worth switching just for the bonus?
Sometimes, if you switch again after the first year. In the long term, a tariff is only worth it if it is also cheaper without the bonus.
What happens to my old contract?
The new supplier usually cancels it for you. You only need to keep an eye on the notice period; we check it for you.
How accurate is the saving?
It is correct if your consumption and the prices stay the same. If your consumption changes, or the price changes after a price guarantee ends, the saving also changes.
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Learn moreGet personal advice
Call us, send us a message on WhatsApp or by email, or request a quote directly. We give advice by phone or Microsoft Teams – in German, Persian and English.