Filed under market.
Sweden trades electricity in four price areas, SE1 in the far north to SE4 in the south, and the difference between them is structural. It does not close with the seasons. The north generates far more than it consumes and the transmission capacity southward is finite. Prices separate at that bottleneck, and they will stay separated for as long as the bottleneck exists. The connection queues tell the same story from the other side: the bulk of Sweden’s data center applications crowd into SE3, where the demand sits, while the headroom sits north of the cut.
For a data center the consequence is blunt: the same server does the same work in Boden as in Malmö, but the power under it can carry a very different price for decades. Latency arguments pull south, cost and availability arguments pull north, and the honest analysis prices both against the workload.
The siting lesson is that the price area is decided before the land is bought, not negotiated afterwards. It is one of the first facts we screen against, and it is why the portfolio is weighted toward the north: that is where the surplus is, and where the queue for it is shortest. The window has a clock on it. Svenska kraftnät is reinforcing the northern transmission grid on a program that runs well into the 2030s, intended to cut the time new lines take to reach operation, and positions taken before that capacity arrives are the ones that benefit from it.
