Compare electricity tariffs using your actual consumption

The lowest kWh price does not always produce the lowest bill. Use identical billing days, power and time-band consumption for every tariff. Take consumption from your bills without inventing an hourly allocation. Separate energy, fixed charges and extras before comparing the final amount.

Hypothetical example, in EUR

Assume 150 kWh in A and 100 in B over 30 days. Prices of EUR 0.20 and 0.15/kWh give EUR 45 energy cost. With 4 kW, EUR 0.10/kW/day and EUR 0.10 daily fixed charge, add EUR 15: EUR 60 before extras and tax. A tariff at 0.18 in both bands and 0.08/kW/day gives EUR 57.60 with the same daily charge. Savings depend on the distribution.

A = 45 + 15 = 60; B = 45 + 12.60 = 57.60 EUR

What to check before deciding

kW is power and kWh is energy used: do not interchange them. Check whether a charge is daily, monthly or per bill and convert it once. If time-band allocation is unknown, use one aggregate band with a compatible price rather than inventing a split. Configurable tax is an explicit approximation, not every country’s rules or a supply offer.

What can change the result?

Consumption and its allocation, days and fixed charges. Changing energy price alone does not compare full bills.

Try the example and compare your own inputs