US AI cloud provider CoreWeave has brought most of a planned 22.5MW of IT capacity into service at atNorth’s DEN01 data centre in Ballerup, Greater Copenhagen. It is the company’s first deployment in Denmark and comes weeks after the country moved data centres towards the back of its grid connection queue.

What was announced

In a release dated 27 October, CoreWeave said the Copenhagen halls run Nvidia Blackwell systems linked by Nvidia Quantum-X800 InfiniBand networking. atNorth owns and operates the building; CoreWeave leases the capacity and runs its own GPU clusters inside it. Neither company disclosed the length or value of the lease, and part of the 22.5MW is still to be commissioned.

The same announcement set out plans for what CoreWeave describes as a global network backbone built for AI traffic, with new points of presence in the UAE, India, Indonesia, Singapore, Australia, South Korea and Japan. The first of these are due to come online later in the fourth quarter, with a complete loop targeted for mid-2027.

The numbers

• Copenhagen: up to 22.5MW of IT load at DEN01, most of it now live.
• Europe: CoreWeave now counts nine data centres across five European geographies, including the UK, Spain, Sweden and Norway.
• Global: 51 data centres with more than 1.5GW of active power at 30 June, and about 4.2GW of contracted power as of its August results.
• Heat reuse: when atNorth announced DEN01 in November 2025, it said surplus heat would go to waste-to-energy company Vestforbrænding’s district heating network, enough for more than 8,000 homes, with deliveries starting in 2028.

atNorth chief executive Eyjólfur Magnús Kristinsson described the site as “energy efficient and responsibly operated”.

Context: a tighter Danish grid

The launch lands in a market where new power is getting harder to secure. Under an emergency plan adopted by the Danish parliament on 1 October and in force since 12 October, grid connection requests are no longer handled first come, first served. Applicants are sorted into four priority categories, with households, defence and healthcare at the top. Most data centres fall into the fourth and lowest category unless they serve a critical societal function, and large projects have been warned they could wait five to ten years for full access.

Dealroom, citing the energy ministry, reported total connection requests of about 60GW against peak demand of roughly 7GW. The Danish Data Center Industry association says 16–18GW of data centre projects sit in the queue, but expects only around 1.2GW to be built by 2030. It has argued for technology-neutral criteria that reward flexibility, battery storage and waste-heat recovery.

Why it matters for modular and edge in Europe

DEN01 is a metro-scale site rather than a campus measured in hundreds of megawatts, and it shows that GPU clouds are willing to take mid-sized, already-connected capacity close to a capital city rather than wait for greenfield power. For developers of smaller and factory-built facilities, that is a useful signal: in markets such as Denmark, where a new connection may now take years, sites with existing grid capacity and a ready heat offtaker become the scarce asset.

The Danish priority rules also put a premium on being “grid friendly”. Compact deployments that can sit beside district heating networks, shift load or bring their own storage may find it easier to argue for capacity than single large users. The heat-reuse arrangement at DEN01 is the kind of societal benefit that the industry wants regulators to weigh when ranking applications.

Sources

• CoreWeave: new capacity in Denmark and first AI network backbone (27 October 2026)
• atNorth: DEN01 to supply heat to Danish homes with Vestforbrænding (November 2025)
• Baxtel: CoreWeave brings 22.5MW online at atNorth’s Copenhagen data center
• Dealroom: Denmark pushes data centres to back of grid queue
• Datacenter Forum: Denmark’s grid emergency plan puts data centres at back of queue