Compute and grid services, on the same pad.
Dalsbruk on Kimitoön is built around a simple idea: the compute hall and the battery yard are not two neighbours on the same site, they are one flexibility block. A down-regulation signal from the Nordic grid is answered with a combination of battery charging and compute-load ramp, split in real time by state-of-charge and thermal headroom. From the system operator's point of view, the site looks like a single responsive asset — from the customer's point of view, it looks like compute hosted on a grid that pays you to be flexible.
That pairing is the reason the site exists in this shape. Nordic power prices are the cheapest green electricity in Europe, Finland has one of the deepest balancing-reserve markets on the continent, and compute workloads — the right ones, managed inside a defined envelope — can absorb that flexibility without anyone on the tenant side noticing.
6 MW live, 18 MW engineered.
The site is engineered to a nameplate of 18 MW / 18 MWh of Huawei LUNA2000 Smart String ESS. The first 6 MW / 6 MWh are installed, connected and carrying load through the local DSO, Caruna. The remaining capacity is engineered and parked on site — same switchgear, same cable runs, same layout — ready to be energised as the next phases of the Dalsbruk build-out are completed on the operator's side.
The installed block is live and carrying load; the engineered expansion is the ramp path, and it arrives in increments as each subsequent phase of the Dalsbruk build-out is completed.
Why the pairing is the point.
A battery on its own is a good asset. A compute hall on its own is a good asset. Put them on the same pad, behind the same grid connection, and something more useful happens: the two asset classes cover each other's weak spots. The battery handles fast, short-duration calls. The compute load handles slower, longer-duration down-regulation without cycling the battery. The thermal profile of the compute hall feeds the heat-recovery loop that the municipality of Kimitoön and the neighbouring industrial offtaker can use. Each additional asset on the site makes the previous ones more valuable.
That is the model, and Dalsbruk is the first site where it is visible end-to-end. The Nordic grid needs flexibility; we need green power; the local heat network needs winter thermal energy. The site sits in the middle of all three and does all three jobs from the same 10 kV connection.
What comes next.
Through the rest of 2026 we will publish short operational notes on what the 6 MW block is actually doing in the Nordic reserve markets, how the compute envelope is co-dispatched, and how the waste-heat offtake with the local network develops. As each subsequent phase of the Dalsbruk build-out is completed, the incremental capacity will be reported the same way — as a step on the ramp, not as a launch.
If you are looking for a Nordic site that treats grid services as a feature and not as an afterthought, this is the place to watch.