Data Centres in the Nordic Power System - 2026 Edition

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