Editorial review 2026-09-12 · Jurisdiction: Sweden — official bidding areas, a dated TSO queue table and named interconnect papers

SE3 versus SE4 siting — a queue megawatt is not a plot offer

Does a hall belong in SE3 because Stockholm colo already sits there, or in SE4 because a southern price hour looks different? Energimarknadsinspektionen publishes four bidding areas — SE1 Luleå, SE2 Sundsvall, SE3 Stockholm and SE4 Malmö — so that transmission constraints show up in the wholesale price. They do not allocate import capacity to a cadastral unit. Svenska kraftnät’s requested-capacity-by-area table, used here from the 2 September 2026 letterhead, says the figures cover applications in the TSO queue until capacity has been reserved and a förhandsbesked has been sent. In that table the data-centre consumption cells read 495 MW in SE1, 1 320 MW in SE2, 5 169 MW in SE3 and a blank cell in SE4. Those are application megawatts before reservation. A blank SE4 cell is not southern surplus. A heavy SE3 cell is not reserved Stockholm power. The electricity-areas page already owns the four names and the open 2026–2027 review. The 29 May 2026 government assignment still reports on 29 January 2027. This page only asks which published siting object the SE3-versus-SE4 slogan is actually sitting on.

Utility transformers and a web of overhead power lines against a clear sky.
Photo Alivia Alva on Unsplash

General orientation. Assess the specific project separately. Applies to: Readers testing an SE3-versus-SE4 siting, price or queue sentence on a Swedish hall file.

Reading order

Seat the municipality in an official area before you compare slogans. Stockholm colocation, EcoDataCenter Falun and evroc Arlandastad sit in SE3 on the papers already used in this register. Microsoft Staffanstorp and GleSYS Falkenberg sit in SE4. Microsoft Gävle and Microsoft Sandviken sit in SE2. AWS Europe (Stockholm) remains a Sweden-region name without a published municipality on the cited launch pages and is not used here as an area pin. Those assignments follow official area names. They are not a score.

Then read the queue table as applications, not as offers. Svenska kraftnät says the cells run until reservation and förhandsbesked. Offshore wind is excluded because it sits in a separate process. The published data-centre consumption cells on the 2 September 2026 page are 495 MW, 1 320 MW, 5 169 MW and blank. Adding the three printed data-centre cells gives 6 984 MW. That sum is arithmetic of those cells. It is not a reserved national hall fleet and not a Staffanstorp offer.

Then keep price, review and interconnects on their own rows. A cheap or expensive hour is a wholesale-market fact. The May 2026 assignment and the 29 January 2027 due date are a policy file. ENTSO-E’s 28 April 2025 bidding-zone notice is the dated source for the sentence that Nordic TSOs proposed to keep Sweden’s four areas. None of those papers is a connection offer.

  • Official area name before a siting slogan.
  • Queue cells are applications until reservation and förhandsbesked.
  • A blank SE4 data-centre cell is not southern surplus.
  • The electricity-areas page already owns the 2026–2027 review.

What a siting clock and a queue clock actually measure

The 2 September 2026 area table is useful here because it refuses a reserved-power reading. The page states that the figures apply to applications until capacity has been reserved and a förhandsbesked has been sent, and that they are split by connection type and application year. The data-centre consumption row is one type among solar, onshore wind, other production, energy storage, industry and other consumption. In SE4 the data-centre and industry consumption cells are blank; other consumption is printed as 654 MW. A blank cell is a published empty cell. It is not proof that no one will apply later, and it is not proof of spare southern capacity.

SE3’s printed data-centre cell, 5 169 MW of applications, is the heavy southern-central row. It is still an application row. It does not convert Stockholm colo, Falun or Arlandastad into reserved megawatts. SE1’s 495 MW and SE2’s 1 320 MW stay on their own area rows. Microsoft’s Sweden region spans SE2 and SE4 on the papers already used here. That span is geography. It is not a transfer of queue megawatts between areas.

Interconnect papers stay interconnect papers. The Government Offices notice published 14 June 2024 records the rejection of Hansa PowerBridge, described there as a new direct-current link from Skåne to Germany and as a joint Svenska kraftnät and 50Hertz project between Germany and Sweden’s southernmost area SE4. Svenska kraftnät closed the project on 3 July 2024. A rejected SE4–Germany link is not a hall megawatt in Staffanstorp or Falkenberg. Svenska kraftnät’s 8 May 2026 notice records the government’s pause of Konti-Skan Connect, the planned replacement for Konti-Skan 1 and 2 between southwestern Sweden and Jutland. A pause is not a commissioned cable and not a campus offtake in SE3 or SE4. Aurora Line’s 12 November 2025 energisation is a 400 kV alternating-current link from Messaure to Pyhänselkä. Svenska kraftnät writes that regional offtake headroom around Luleå and Boden rises from 345 MW to 745 MW. That rise sits in the north. It is not an SE3 or SE4 hall reservation.

The review file remains open. The government expanded Svenska kraftnät’s assignment on 29 May 2026, with reporting due 29 January 2027. ENTSO-E’s 28 April 2025 notice is the dated European study sentence that Nordic TSOs proposed to maintain Sweden’s current configuration. An open review is not a done remap and not a plot yes.

What named primary sources show

Energimarknadsinspektionen’s bidding-area page remains the official name source: SE1 Luleå, SE2 Sundsvall, SE3 Stockholm, SE4 Malmö. Svenska kraftnät’s 2 September 2026 area table remains the dated queue-cell source. Keep 495, 1 320, 5 169 and the blank SE4 data-centre cell attached to that letterhead. Do not move them onto a municipal welcome letter.

The 29 May 2026 government assignment, Svenska kraftnät’s analysis page and ENTSO-E’s 28 April 2025 notice remain the review stack already owned by the electricity-areas page and the earlier review-reading article. This page only uses them as the reason a siting slogan cannot treat today’s map as a promise.

The Hansa, Konti-Skan Connect and Aurora Line papers remain interconnect files. Named halls stay on their own geography cells. No cited source here publishes a reserved megawatt for a named SE3 or SE4 hall from the area table.

A matrix instead of a south-versus-capital slogan

Draw one page with area rows and evidence columns. Official name, named hall geography, application megawatts, reserved megawatts, hourly price and interconnect paper are different columns. Empty cells stay empty. A 5 169 MW application cell is a queue footnote, not a reserved-power column. A blank SE4 data-centre cell is an empty cell, not a surplus column.

Do not invent an SE3-versus-SE4 league table from the 2 September 2026 cells, from Hansa’s rejection, or from Aurora Line’s 345-to-745 MW northern headroom. Those remain different objects from different years and methods.

ObjectWhat a source can showWhat this page will not invent
SE3 data-centre queue cellSVK 2 Sep 2026: 5 169 MW applicationsReserved Stockholm hall MW
SE4 data-centre queue cellSVK 2 Sep 2026: blankSouthern surplus
Hansa PowerBridgeGovernment rejection published 14 Jun 2024; SVK close-out 3 Jul 2024A Staffanstorp offer
Aurora Line 1SVK 12 Nov 2025: Messaure–Pyhänselkä; 345 to 745 MW around Luleå/BodenAn SE3 or SE4 hall reservation

Common misreads

The first misread is to treat a blank SE4 data-centre cell as proof that the south is empty of halls or full of spare power. The cell is an application cell before reservation. Microsoft Staffanstorp and GleSYS Falkenberg already sit in SE4 on other papers. The second is to treat 5 169 MW in SE3 as reserved Stockholm power. The third is to treat a cheap or expensive hour as a connection offer.

The fourth is to treat Hansa’s rejection as a hall siting number. The fifth is to treat Konti-Skan Connect’s pause as campus offtake in SE3 or SE4. The sixth is to paste Aurora Line’s northern 345-to-745 MW headroom onto Falun or Staffanstorp. The seventh is to treat the 29 January 2027 review date as a done remap.

What to ask next

Ask which official area the municipality sits in, which named hall papers you actually hold, and which queue cell — application, reservation or förhandsbesked — anyone is quoting. Ask whether a price hour or an interconnect pause has been treated as a plot offer. Ask which network-owner letter you already hold.

Then open the electricity-areas page, the grid-queue page and the Sweden-versus-Finland page. If the operator will not name the area and the paper class, record the gap. Do not fill it from a south-versus-capital slide.

  1. Is the live paper an official area, a queue cell or a price hour?
  2. Has a blank SE4 cell been treated as surplus?
  3. Has 5 169 MW been treated as reserved Stockholm power?
  4. Has Aurora Line’s northern headroom been pasted onto SE3 or SE4?
  5. Has a data-hall SE3-versus-SE4 league been invented?

What this does and does not prove

This page proves that a dated Svenska kraftnät area table already prints data-centre application cells of 495 MW, 1 320 MW and 5 169 MW and a blank SE4 data-centre cell, and that those cells are not reserved plot megawatts, southern surplus or a done remap of SE3 and SE4.

It does not prove that a named SE3 or SE4 hall can connect next year. It does not invent a price-to-offer conversion. It does not treat an interconnect rejection or pause as a campus offtake.

Empty cells stay empty. Until a later primary source names a reserved megawatt for a named SE3 or SE4 hall against that table, the siting clock stays a method, not a census.

Sources

  1. Electricity bidding areas Energimarknadsinspektionen, 2026-01-01. Checked 2026-09-10.
  2. Requested capacity by bidding area Svenska kraftnät, 2026-09-02. Checked 2026-09-12.
  3. Analysis of bidding areas Svenska kraftnät, 2026-05-29. Checked 2026-09-10.
  4. Government expands Svenska kraftnät bidding-area assignment Regeringskansliet, 2026-05-29. Checked 2026-09-10.
  5. Bidding Zone study released ENTSO-E, 2025-04-28. Checked 2026-09-10.
  6. Government of Sweden rejects the permit application for a new electricity link to Germany Regeringskansliet, 2024-06-14. Checked 2026-09-12.
  7. Svenska kraftnät closes Hansa PowerBridge after the government’s rejection Svenska kraftnät, 2024-07-03. Checked 2026-09-12.
  8. Svenska kraftnät — on the government’s decision to pause Konti-Skan Connect Svenska kraftnät, 2026-05-08. Checked 2026-09-12.
  9. Svenska kraftnät — Aurora Line is delivering Svenska kraftnät, 2025-11-12. Checked 2026-09-12.
  10. Microsoft opens its sustainable datacenter region in Sweden Microsoft, 2021-11-16. Checked 2026-09-10.
  11. GleSYS Falkenberg data center GleSYS, 2026-01-01. Checked 2026-09-10.
  12. evroc finalizes land purchase in Arlandastad, Stockholm evroc, 2025-02-03. Checked 2026-09-10.
  13. EcoDataCenter 1, Falun EcoDataCenter, 2026-01-01. Checked 2026-09-10.

Related