Compare electricity contracts using your own consumption
The cheapest advertised kilowatt-hour does not necessarily produce the lowest bill.
The cheapest advertised kilowatt-hour does not necessarily produce the lowest bill. Compare the same consumption, period and tax treatment. The task is to evaluate offers against your usage pattern, not predict future exchange prices.
Collect actual data
Download consumption history from your supplier or network operator. Use a full year where possible because electric heating changes the distribution between months. Note a planned electric car or new heating equipment: historical consumption may then be an incomplete guide.
Calculate comparable totals
For a fixed energy component, the basic calculation is consumed kWh multiplied by price, plus subscription charges. For a historical exchange-contract comparison, multiply each billing interval’s consumption by its corresponding price, sum the results and add the quoted margin and fees. Convert cents, euros, kWh and MWh consistently.
Read beyond the price table
Check duration, amendment terms, termination and what happens when an introductory offer ends. Enefit’s explanatory material describes one seller’s products; it is not an independent ranking of the whole market. Request several personalised quotations using the same source data.
- Record the period and actual consumption.
- Include energy price, margin and monthly charges.
- Check tax inclusion and contract end.
- Keep network costs separate without double counting.
Test a winter month too
Calculate a high-consumption month separately and consider whether your budget can absorb price changes. A favourable historical result is not a promise of future savings. Do not compare one offer’s energy-only cost with another’s complete bill including network charges and taxes. Save the quotation date and conditions so you can later reconstruct exactly what the comparison included.
Related reading
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Sources and verification
Information checked on 30 October 2026. Recheck the source before buying or visiting.
