Data Centres in the Nordic Power System

Overview

Only one of the four Nordic countries measures data-centre consumption. Norway publishes metered data through Elhub. Sweden’s figure descends from a single commercial model, Finland’s is an association estimate its own authors describe as imprecise, and Denmark publishes no data-centre line at all. Any table ranking the four on consumption is comparing one measurement with three estimates, and this report says so on the page rather than in a footnote.

Chapter 4 and Annex B present an annual and monthly Norwegian data-centre consumption series by bidding zone, computed by this report from Elhub’s open daily settlement dataset. No equivalent series has previously been published. The method, its validation against Elhub’s own published figures, and the limits of the result are all set out.

The grid chapters cover twelve bidding zones over eight years in one price matrix, the three zone-reform processes now pulling in different directions, connection queues and statutory deadlines, the four instruments by which access is now rationed, generation adequacy as each transmission operator actually assesses it, the balancing and reserve markets, and the four capital investment plans.

The closing part covers electricity taxation in a region that withdrew its subsidy, power purchase agreements and basis risk, waste heat as a paid market in Stockholm and a gift economy elsewhere, every official demand projection by country and vintage, a forensic comparison and back-test of those projections, and the reporting obligations arriving under the EU data-centre database and the Nkom register.

Every quantitative figure carries a source and a provenance class recording how it entered the record. Measured data and modelled estimates are never presented in the same column. Where authorities conflict, both figures are given and the cause of the difference is explained; nothing is resolved by averaging and nothing is resolved silently.

This is an independent publication. It is not commissioned or endorsed by, or affiliated with, the Norwegian Water Resources and Energy Directorate, any Nordic transmission system operator, regulator or statistics agency. All authorities are named for identification only.

What this edition covers

Twenty chapters in three parts, plus four annexes. Foundations: scope and definitions across four countries that do not define a data centre the same way, the measurement problem, consumption, the computed metered series, market structure and the announced pipeline, and attrition. The Grid: bidding zones and prices, zone reform, connection, rationing and priority, generation and adequacy, flexibility and reserves, and grid investment. Economics and Outlook: electricity taxation, power purchase agreements, waste heat, official forecasts, forecast forensics, reporting obligations, and what is missing. Annexes carry a key indicators dataset, the computed Norwegian monthly series by bidding zone, a 2019–2026 zone price matrix, and a glossary — the first three also supplied as CSV.

Who this is for

Forecasters, analysts, developers, investors and lenders who need Nordic data-centre demand, grid access and price evidence they can trace to a published authority and reproduce.

What you get

• An original Norwegian metered consumption series by bidding zone, computed from Elhub settlement data and not previously published
• Every figure carries a provenance class and a date; measured and modelled figures never share a column
• Conflicting authorities both printed, with the cause of the difference explained and nothing averaged
• Twelve findings, stated up front
• A twelve-zone, eight-year price matrix
• The four connection queues shown to be measuring four different things
• A forensic back-test of every official demand forecast, by country and vintage
• Three machine-readable datasets, embedded in the file and supplied as CSV
• 258 unique sources, 142 data tables, 20 figures
• Independent — not commissioned by or affiliated with any authority

Table of contents

1. Executive summary: The twelve findings.
2. Part I — Foundations: What is defined, what is measured, and what is only estimated.
3. Chapter 1 — Scope, definitions and method: Why the four countries do not define a data centre the same way.
4. Chapter 2 — The measurement problem: Three Norwegian series, one Swedish model, no Danish line.
5. Chapter 3 — Consumption: What is actually measured, and what is estimated.
6. Chapter 4 — The metered series, computed: An original annual series by bidding zone, and what it settles.
7. Chapter 5 — Market structure: Operators, facilities and the announced pipeline.
8. Chapter 6 — Attrition: Cancellations, pauses and what they say about pipeline forecasts.
9. Part II — The Grid: Zones, prices, connection, rationing, adequacy and investment.
10. Chapter 7 — Bidding zones and prices: Twelve zones, eight years, one price matrix.
11. Chapter 8 — Zone reform: Three processes pulling in different directions.
12. Chapter 9 — Connection: Queues, statutory deadlines and connection charges.
13. Chapter 10 — Rationing and priority: Four instruments, one problem.
14. Chapter 11 — Generation and adequacy: Capacity, energy balance and what each TSO actually assesses.
15. Chapter 12 — Flexibility, balancing and reserves: What the markets pay, and whether anyone is collecting.
16. Chapter 13 — Grid investment: The four capital plans and who pays for connection.
17. Part III — Economics and Outlook: Tax, offtake, heat, forecasts and what is coming into force.
18. Chapter 14 — Electricity taxation: A region that withdrew its subsidy.
19. Chapter 15 — Power purchase agreements: Procurement, basis risk and guarantees of origin.
20. Chapter 16 — Waste heat: A paid market in Stockholm, a gift economy elsewhere.
21. Chapter 17 — Official forecasts: Every official projection, by country and vintage.
22. Chapter 18 — Forecast forensics: Method comparison and a back-test.
23. Chapter 19 — Reporting obligations: What the EU database and the Nkom register will make visible.
24. Chapter 20 — What is missing: The gaps, and the instruments that would close them.
25. Annex A — Key indicators dataset: Also supplied as CSV.
26. Annex B — The computed Norwegian series: Monthly by bidding zone. Also supplied as CSV.
27. Annex C — Zone price matrix and spreads, 2019–2026: Also supplied as CSV.
28. Annex D — Glossary of Nordic power and data-centre terms: With the references and index.

Research and sources

Every quantitative figure carries a source and a provenance class — measured, published, reported, estimated, derived and forecast are distinguished throughout and never tabulated in the same column. Arithmetic performed by the authors is marked at the point of use with its inputs, its operation and its result, so any derivation can be reproduced or rejected. Figures are given in their original currency and unit; every conversion to EUR uses the European Central Bank annual average reference rate for the year of the underlying figure, published in Annex C. Figures that could not be traced to a published authority are labelled or omitted, and the omission is stated. 258 unique sources. Data as at 28 August 2026 except where an earlier or later date is stated at the figure.