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Sweden's new Electricity Market Act 2027 – what changes for you as a customer?

On 1 January 2027 the Electricity Act (ellagen) is replaced by a new Electricity Market Act (elmarknadslagen), and on 1 July 2027 the system of assigned contracts (anvisade elavtal) ends. This is what the law, the government bill and the Swedish Energy Markets Inspectorate (Ei) say it means for you if you have an electricity contract for your home. The sources are linked under each section.

Sources checked 23 October 2026

What happens, and when?

15 June 2026
The Riksdag passes the new Electricity Market Act and the act on how it is introduced.
1 January 2027
The Electricity Market Act (2026:1281) enters into force and the Electricity Act (1997:857) is repealed. Assigned contracts are then governed by the act introducing the Electricity Market Act.
30 June 2027
The last day the grid company assigns a supplier to anyone without a supply contract.
1 July 2027
The system of assigned contracts has been wound up, and the rules on the supplier of last resort (leveransskyldig sistahandsleverantör) apply.

What changes in your contract on 1 January 2027?

The rules on supply contracts move from chapter 9 of the Electricity Act to chapter 12 of the Electricity Market Act. According to the government bill, the rules for your contract are in substance the same as the Electricity Act's, among them these:

What is new is that the law expressly requires both a grid contract and a supply contract for you to be entitled to electricity, and that a supplier that cancels your contract has to report it to the grid company the same day.

What happens to assigned contracts?

According to Statistics Sweden (SCB), cited in the bill, 8.6 per cent of electricity contracts were assigned contracts in October 2025.

Until 30 June 2027 the grid company assigns a supplier to anyone without a supply contract. An assigned contract may not have a notice period longer than 14 days or an hourly or quarter-hourly price. The Electricity Act's rule that the assigned supplier must tell you about its other contracts at least once a quarter applies until 31 December 2026; according to the bill it is not needed during the transition.

If you are on an assigned contract when June 2027 ends, the supplier has to apply, from 1 July 2027, the terms of one of the contracts it offers and markets. The price per kilowatt hour may not be fixed for a set period, and the notice period may be at most 14 days. According to the bill you then stay with the same supplier on a variable-price contract, unless you choose something else.

As soon as possible after June 2027 the supplier has to tell you:

If you do not accept the new terms, the bill says you can agree on different terms with the supplier or cancel the contract.

Assigned prices by price area →

What is a supplier of last resort?

From 1 July 2027 every local grid area has a supplier of last resort (leveransskyldig sistahandsleverantör): the supplier with the largest market share there among customers with an expected annual consumption below 100,000 kWh, measured by electricity supplied over twelve months. The grid company has to publish which one it is.

If your consumption is in that range, the supplier of last resort has to supply you with electricity, for payment, when you ask, and let you choose freely among the contracts it offers and markets.

It also takes over supply if your supplier loses its balance responsibility and does not restore it in time – according to Ei also if the supplier has gone bankrupt – and then has to urge you to sign a new contract with a supplier of your choice as soon as possible. The terms have to match a contract it offers, with a notice period of at most 14 days and a price per kilowatt hour that is not fixed for a set period.

Ei is to issue regulations on how the market shares are calculated and how the supplier of last resort is published. According to Ei they are planned for publication in spring 2027.

What do I need to do?

It depends on your contract. This is as far as the sources go:

You have an assigned contract
If your contract is assigned, the invoice has to say so. If you do not choose, the terms of one of the supplier's regular contracts apply from 1 July 2027, and you are told so after June 2027. You can sign a different contract, with the same supplier or another one; the notice period is at most 14 days.
You have a fixed price
The rules on the fee for early cancellation and on the notice 90–60 days before the contract ends remain. In that notice the supplier has to tell you what happens when the contract ends.
You have a variable, hourly or quarter-hourly price
The supplier has to notify you no later than two months before it changes the price or other terms. For a contract with a dynamic price (dynamiskt elpris), which follows the spot price for every settlement period, the supplier first has to tell you about its opportunities, costs and risks and get your specific consent.
You are moving into a new home
Until 30 June 2027 the grid company assigns a supplier if you have not signed a supply contract. From 1 July 2027 none is assigned: you need a grid contract and a supply contract to be entitled to electricity, and according to the bill anyone taking electricity without a supply contract is, as a starting point, disconnected. According to Ei, anyone who cannot choose a supply contract needs to contact the supplier of last resort in the area.

Where can I see the prices?

The comparison lists every contract by price area, sorted by comparison price at the consumption you pick. The assigned prices have a table of their own, next to the same supplier's cheapest other contract. Elpriskollen is the Swedish Energy Markets Inspectorate's comparison service for electricity contracts.

Compare contracts in your price area →Assigned prices by price area →Switching contracts →Elpriskollen ↗

Compare contracts in your price area →Always check the price with the supplier before signing.

All sources (in Swedish)