Is That Electricity Offer Cheaper Than Berlin’s Default Tariff at Your kWh?
Type your yearly kWh and the two prices from any electricity offer. The tool draws each tariff as a cost line against Vattenfall’s Berlin default tariff, marks the consumption where two lines cross, and shows what each offer costs in year one with its bonus and in year two without it.
Default tariff: Vattenfall Berlin Basis (Grundversorgung) from 1 April 2026, 37.93 cents per kWh and 13.40 euro a month, gross. Household averages for a flat come from the Stromspiegel: 1,200 kWh for one person, 1,900 for two, 2,400 for three, more with an electric water heater. Checked on 19 September 2026. Yearly cost is kWh times the price per kWh plus twelve months of base price; a bonus is taken off year one only.
Most Berliners who never signed an electricity contract pay the default tariff. Since April 2026 its base price is 160.80 euro a year before any use, which hits small flats hardest. Put your own consumption in and see which offer really wins once the bonus is gone.
The default tariff is where you start
If you moved into a Berlin flat and never signed an electricity contract, Vattenfall supplies you on its default tariff, the Grundversorgung. You can leave it at two weeks’ notice at any time, and switching is free.
Why the base price matters in a small flat
Since 1 April 2026 the default tariff charges 13.40 euro a month before any consumption. A one-person flat on 1,200 kWh pays about 616 euro a year, which is really 51.3 cents per kWh once the base price is spread over the use.
Read the dashed line
A new-customer bonus lowers only the first year. The dashed line shows what the same contract costs once the bonus has been paid, which is the price you keep paying if you stay.
What this tool cannot know
It compares the prices you type. It cannot check a supplier’s price guarantee, bonus conditions or later price changes, so read the contract terms before you sign.