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Hidden mark-ups in your electricity contract: how to find them on the invoice

Mark-ups, monthly fees and add-ons rarely show in the quote but add up to thousands of kronor a year. How to read the invoice, what to ask the supplier and what it looks like in your industry.

16 October 20267 min readBy Oliwer Brewitz

What is a mark-up?

A variable-price electricity contract has two parts: the spot price from the power exchange and the supplier's mark-up on top. The spot price is the same for everyone in the same bidding zone (elområde, one of Sweden's four electricity price areas). The mark-up is the only part the supplier sets itself, which is why it is where the difference between a good contract and an expensive one lies.

The problem is that the mark-up rarely appears as a single, clear line. It can be split across several items, built into a total price or only show up after a year.

Five places where costs tend to hide

  1. Mark-up in öre/kWh. The visible part. Always compare in öre per kWh, never as a percentage or a total amount.
  2. Percentage mark-up. A mark-up charged as a percentage of the spot price grows when the price rises. A winter month with high prices becomes twice as expensive.
  3. Profile cost. If you have a contract based on the monthly average price, the supplier often charges for the fact that your consumption falls in hours that are more expensive than average. The item may be called a profile mark-up, volume adjustment or balancing cost.
  4. Fixed fees. A monthly fee per site, invoice fee, paper invoice fee and a fee for an app or portal. With many metering points, these quickly add up to large amounts.
  5. Add-ons. Electricity with guarantees of origin, climate offsetting or price monitoring can be reasonable purchases, but they should be priced separately so that you can opt out of them.

How to read the invoice

Put three invoices from different seasons side by side and work out what you have actually paid per kWh for the electricity supply, excluding the grid fee (nätavgift, the charge paid to the network operator) and energy tax. Compare that with the month's spot price in your bidding zone. The difference is your real mark-up, whatever the lines are called.

The first time you do this exercise, it is common for the difference to be larger than the mark-up stated in the contract. If so, the rest is in one of the items above.

Red flags in the contract terms

  • The price refers to the supplier's price list in force at any given time
  • The mark-up is not shown separately but is included in a total price
  • The mark-up may be adjusted during the contract period
  • The contract renews automatically on the same terms

What to ask the supplier

  • What mark-up in öre/kWh do we pay, and what other fees are added per month and per site?
  • Is a profile or balancing cost charged separately, and how is it calculated?
  • Can the mark-up change during the contract period?

Ask for the answer in writing. A supplier that does not want to itemise its fees usually has a reason not to.

Tip: Convert all quotes to an annual cost based on your own consumption. A low mark-up with high fixed fees can end up more expensive than the reverse.

How it looks in different industries

Mark-ups work the same way everywhere, but where they hide depends on how the business uses electricity. Choose your industry for a worked example and the trap we see most often.

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