Actors

DSO: tariffs and the local monopoly

You cannot choose your DSO. Here is what they do, and why their bill is half of yours.

A DSO is the local grid company. They own the wire from the regional substation to your meter. Sweden has around 170 of them. The big ones are Vattenfall Eldistribution, Ellevio, and E.ON Energidistribution. The small ones are often municipal, serving one city or part of one.

You cannot pick your DSO. Where you live decides who delivers power to your address. The DSO is a regulated monopoly in its area.

What they actually do

flowchart TB
    A([Own the local wires<br/>130 kV down to 400 V])
    B([Connect new customers<br/>houses, factories, EV chargers])
    C([Read your meter<br/>send data to Elhubben])
    D([Maintain and fix the lines<br/>fault response, storm cleanup])
    E([Bill you for nätavgift])

    A --> B
    A --> C
    A --> D
    A --> E

    style A fill:#fef3c7,stroke:#a16207,color:#713f12
    style B fill:#fef3c7,stroke:#a16207,color:#713f12
    style C fill:#fef3c7,stroke:#a16207,color:#713f12
    style D fill:#fef3c7,stroke:#a16207,color:#713f12
    style E fill:#fed7aa,stroke:#c2410c,color:#7c2d12

When a storm knocks down a tree on a line, the DSO sends the truck. When you install a heat pump and need a fuse upgrade, you call the DSO. They are the company physically connected to your house.

Why the bill is regional and political

The DSO bill (nätavgift) is a real chunk of your electricity bill, often half. It pays for the wires, the maintenance, the meter, and the DSO’s profit.

The price is not set by the DSO alone. Ei reviews and approves the maximum revenue each DSO can collect over a four-year regulatory period. The DSO then decides how to split that revenue across its customer types (houses, apartments, businesses).

This is one of the most political topics in Swedish energy. Every four years there is a public fight about whether the approved revenue is fair, whether DSOs are over-earning, and whether the tariff design is fair across customer types. Ei is at the centre of it.

Tariff structure: more than just kWh

A modern Swedish nätavgift usually has three components.

flowchart TB
    A([Fixed fee<br/>per month<br/>covers the connection itself])
    B([Energy fee<br/>per kWh<br/>covers usage])
    C([Power fee<br/>per kW of peak<br/>charges you for your biggest 15 minute peak])

    style A fill:#fed7aa,stroke:#c2410c,color:#7c2d12
    style B fill:#fed7aa,stroke:#c2410c,color:#7c2d12
    style C fill:#fed7aa,stroke:#c2410c,color:#7c2d12

The third component, the power fee (effektkomponent), is the new one. It charges customers for the highest 15-minute peak they pulled in a month. This is meant to push houses to charge EVs at off-peak hours, run dishwashers overnight, and so on. Some DSOs have rolled it out. Others have not. The design is still being argued about.

The DSO’s new job: managing the local energy transition

Five years ago the DSO’s job was mostly to deliver power down the wire. Today it is bidirectional. Solar panels on roofs push power up the wire. EV chargers pull big peaks. Heat pumps shift load to cold mornings. Data centres ask for 50 MW connections in places the grid was not designed for.

This is why DSOs have become a hot topic in the Swedish market. Their job has grown without their grid keeping up, and a lot of new business in the country runs into a we cannot connect you yet answer from the local DSO.

Three rules of thumb for everyday life

Power outage? Call the DSO, not your retailer.
Want to install solar or a battery? You need to register with the DSO.
DSO bill went up? Look at the latest Ei decision. Not the DSO.

The next role is the one nobody outside the industry has heard of. See The BRP and the imbalance contract.