· SE3

Stockholm County

Does a dense published colocation cluster in Stockholm County prove residual grid capacity on a chosen plot? It does not. This register documents halls and campuses in Stockholm municipality, a land-and-building-rights purchase in Sigtuna’s Arlandastad, and operator wording about heat recovery with Stockholm Exergi. Connectivity richness is documented in operator copy. Residual megawatts are not inferred from that cluster. AWS Europe (Stockholm) is a Sweden-region name; the cited launch pages do not publish a municipality, so that region is not pinned here.

Read the county as a container, not as a campus. Open Stockholm municipality for Kista, Akalla, inner-city halls, Västberga and the south campus wording. Open Sigtuna for evroc’s 3 February 2025 Arlandastad notice. Then read Stockholm Data Parks as a municipal-and-utility invitation — City of Stockholm, Stockholm Exergi, Ellevio and Stokab — not as a delivered-heat ledger. Then read SE3 on Energimarknadsinspektionen’s page. Then, if someone has pasted a transmission-map colour into a brochure, read Svenska kraftnät’s own edges: the map is indicative, does not replace the formal process, and does not show underlying-network capacity.

Stockholm County is in SE3. Wholesale prices in SE3 are not a connection offer in Kista or at Arlanda. Ellevio appears as the power-grid partner on the Stockholm Data Parks page; that names a counterpart for local questions. It does not publish a reserved megawatt figure for a named hall. Stokab names dark fiber as part of the invitation. Fiber density and power availability are different files. Boverket’s detaljplan guidance still governs whether a specific plot may be used for a hall; county marketing does not.

Operator records in this county file are not interchangeable. atNorth states 12 MW site power capacity for SWE01 in Kista and describes heat recovery with Stockholm Exergi; occupied IT load and delivered heat are not quantified on that page. SWE02 in Akalla is a 30 MW metro site announced on 29 January 2026, scheduled to go live in the fourth quarter of 2027, and is not treated as operational IT load. Equinix SK1 and SK2 are published as operating IBX sites without a retail megawatt figure on the pages used here. Digital Realty states 22.7k m² total colocation space across six published buildings and does not state a campus megawatt total on that page. STACK’s market page states 18 MW for one campus without an IT-versus-facility definition. Bahnhof Pionen and Thule are operating inner-city halls without megawatts on the cited pages. Conapto’s 5 September 2024 release states that Stockholm 4 South had opened and that the south campus offered 5,200 m² of computer rooms and 24 MW of power; a Stockholm 2 South sheet states 4 MW for five rooms and is not added on top of 24 MW. GleSYS Stockholm in Västberga has no megawatt on the cited Stockholm page.

Arlandastad is in Sigtuna, not in Stockholm municipality. evroc reported a purchase of 4,890 sqm building rights, an intention to invest EUR 600 million, a design of up to 16,000 GPUs, and aims to break ground in the first half of 2025 and operate in the latter half of 2026. No megawatt appears in that notice. Commissioning is not treated as documented. Do not fold Arlandastad into the Kista interconnect story as if land rights were an operating hall.

Heat language in this county is a pattern, not a measured county total. Stockholm Data Parks invites large data centers that employ heat recovery and describes excess heat as a resource in the city’s fossil-fuel-free-by-2040 objective. atNorth and Conapto name Stockholm Exergi in operator materials. Those sentences sit in the prepared-or-described band unless a dated delivery start or a measured volume is published. This register does not invent megawatt-hours for Stockholm. GleSYS’s 1 October 2020 Falkenberg delivery start is a west-coast contrast, not a Stockholm measurement.

Common misreads: adding every operator megawatt in the county; treating AWS’s region name as a Stockholm-municipality pin; treating SWE02’s target live date as commissioning; treating 24 MW and 4 MW as additive; treating Data Parks copy as contracted delivered heat; treating SE3 or a map interval as spare power on a plot.

This county brief proves that Stockholm County holds the densest published colocation set in this register plus one dated land-rights development in Sigtuna, and that connectivity and heat-recovery wording are not residual capacity. It does not prove a county megawatt total, does not place AWS on a map, and does not invent halls outside the reviewed set.

Questions for a concrete establishment

• Is the site in the interconnection cluster or only in the same county?
• Which operator-published MW figures share a definition and which do not?
• For Arlandastad, what has been built versus purchased as land rights?
• Is heat reuse with Stockholm Exergi prepared, contracted, or delivered — and which dated sentence supports that state?
• Has AWS published a municipality on a primary page used here, or is the region still unpinned?
• Which network owner and which detaljplan cover the specific plot, not the county cluster story?

Sources