atNorth SWE04 Sollefteå

Phases

• SWE04 mega site — In development

Capacity disclosure

• Site power

  300 MW

  Site power · announced / planned · 2026 · announced · campus

  ReportedAs of 2026-02-23 · atNorth

  Operator announcement of 23 February 2026. Expected operational H1 2028 in the same notice. Not treated as live IT load or as a reviewed grid contract. Hectares are land, not megawatts.

  “plans to develop a 300MW data center in Sollefteå Municipality, Sweden”

• Utility power

  200 MW

  Utility power · announced / planned · 2026 · contracted · campus

  ReportedAs of 2026-05-28 · Sollefteå kommun

  Municipality reports a signed future connection. The contract itself has not been reviewed. Separate from the operator’s 300 MW development plan and from operating IT load.

Planning and grid

The notice and a quoted municipal chair say the site is fully zoned and prepared. That wording is not treated here as a reviewed detaljplan file. Permit status is not verified in this register.

On 28 May 2026, Sollefteå municipality reported that E.ON and atNorth had signed a 200 MW connection agreement for Långsele, with operation planned for autumn 2028. This is a public report of a project-specific agreement; the underlying contract has not been reviewed here. It does not establish available power for neighbouring land. On 3 November 2026 Enersense said E.ON Energidistribution had contracted it to build two new 130 kV overhead lines, each about 2.5 kilometres, between the Hamre and Nässe substations, linked to atNorth's planned campus; work starts in November 2026 and is due to be completed in March 2029.

Upcoming decisions and dates

• 2027 · Company target

  Heat purchase agreement targeted for SWE04 and Långsele district heating

  Calentix’s project page gives 2027 as the target for a heat purchase agreement, with 1.6 MW in a first phase and potential for about 20 MW.

  Source: Calentix Energy

• First half of 2028 · Company target

  atNorth SWE04 in Sollefteå expected operational

  On 23 February 2026 atNorth confirmed plans for a 300 MW data center at Hamre Industrial Park and said it expects operations in the first half of 2028.

  Source: atNorth

• Autumn 2028 · Company target

  200 MW grid connection for SWE04 planned to be in operation

  Sollefteå municipality reported on 28 May 2026 that E.ON and atNorth had signed a 200 MW connection agreement for Långsele, with operation planned for autumn 2028.

  Source: Sollefteå kommun

• March 2029 · Company target

  Two 130 kV lines between Hamre and Nässe due to be completed

  Enersense said on 3 November 2026 that E.ON had contracted it to build two overhead lines of about 2.5 kilometres each, linked to atNorth’s campus. Work starts in November 2026 and is due to be completed in March 2029.

  Source: Enersense International Plc

• Q2 2029 · Company target

  First heat delivery from SWE04 to Långsele district heating

  Calentix gives the second quarter of 2029 as the target for first delivery of recovered heat from the data center to the Långsele network.

  Source: Calentix Energy

The full decision calendar →

Updates

• 2026-11-04

  atNorth and Calentix sign project development agreement on heat recovery to Långsele

  atNorth and Calentix said they have signed a project development agreement under which Calentix develops heat recovery from SWE04 to the Långsele district heating network, operated by Adven. Calentix gives 1.6 MW in the first phase, potential for about 20 MW, a heat purchase agreement targeted for 2027 and the second quarter of 2029 as the target for first heat delivery.

• 2026-11-03

  E.ON contracts Enersense for two 130 kV lines Hamre–Nässe, due March 2029

  Enersense said it has signed a contract with E.ON Energidistribution for two new 130 kV overhead lines, each about 2.5 kilometres, between the Hamre and Nässe substations in Sollefteå, with 35 new steel lattice towers. Work starts in November 2026 and is due to be completed in March 2029. Enersense links the lines to atNorth's planned 300 MW campus at Hamre.

• 2026-02-23

  atNorth announces a 300 MW SWE04 plan in Sollefteå

  On 23 February 2026 atNorth confirmed plans to develop a 300 MW data center at Hamre Industrial Park, expected operational in H1 2028. Stored as announced site power, not as live IT load.

Context

• County: Västernorrland County
• Municipality: Sollefteå
• Electricity area: SE2
• Actors: atNorth

More projects in Västernorrland County

• Google Torsboda, Timrå — Announced
• Verda AI centre, Sundsvall (Almåsen) — Announced

Related news

• 2026-11-05 · atNorth and Calentix sign development agreement on heat recovery from SWE04 to Långsele district heating
• 2026-11-04 · Enersense to build two 130 kV lines between Hamre and Nässe for E.ON, linked to atNorth's Sollefteå campus
• 2026-09-12 · atNorth’s 2 September 2026 notice names four Nordic mega sites; a name is not a live megawatt
• 2026-09-12 · Sollefteå council approves the Hamre agreement proposal; a vote is not a groundbreaking
• 2026-09-12 · Sollefteå reports an E.ON 200 MW connection agreement for atNorth in Långsele
• 2026-09-12 · atNorth confirms plans for a 300 MW Sollefteå campus; H1 2028 is a target, not operation

Knowledge gaps

• “Fully zoned” is operator and municipal-chair wording, not a reviewed detaljplan extract.
• Construction status beyond the development announcement is not independently verified here.
• The municipality reports a signed connection agreement; the contract, conditions and energisation milestones have not been reviewed.
• The Hamre–Nässe line contract is due for completion in March 2029, later than the operating dates of H1 2028 (atNorth) and autumn 2028 (E.ON) given earlier; whether power can be delivered before then is not public.
• Heat reuse: on 4 November 2026 atNorth and Calentix published a project development agreement for heat recovery to the Långsele district heating network (Adven), 1.6 MW in the first phase with potential for about 20 MW, first delivery targeted for Q2 2029. No heat purchase agreement (targeted 2027) or investment decision has been published.

Sources

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