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FAQEED Article 12EU

EU Energy Efficiency Directive Data centre thresholds and reporting

EED Article 12 applies to owners and operators of data centres in EU Member States when installed IT power demand reaches at least 500 kW.

This page explains how installed IT power is defined, who submits, which period and fields are reported, how national schemes affect the route, and what evidence to retain.

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Author
Sorena AI
Published
May 9, 2026
Updated
Jul 25, 2026
Questions
5

Structured answer sets in this page tree.

Primary sources
9

Cited legal and guidance references.

Publication metadata
Sorena AI
Published May 9, 2026
Updated Jul 25, 2026
Overview

Under Article 12 of Directive (EU) 2023/1791, Member States must require owners and operators of in-territory data centres with of at least 500 kW to make specified energy-performance information publicly available. The reporting obligation does not apply to data centres used for, or providing services exclusively with the final aim of, defence and civil protection.

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5 of 5 questions
Question 1

What is the EED Article 12 threshold for data centre reporting?

The trigger is not total site load, revenue, floor area, cloud customer count, or enterprise size. Article 12 uses : at least 500 kW. Delegated Regulation (EU) 2024/1364 defines that demand as the sum of the nominal power demand of the networks, servers, and storage equipment installed in the data centre computer-room floor area.

A separate 1 MW installed IT power threshold matters because Member States must encourage owners and operators at or above that level to take account of the latest European Code of Conduct on Data Centre Energy Efficiency best practices. Do not treat the 1 MW point as the start of the Article 12 reporting obligation.

  • Calculate installed IT power from nominal demand for the network, server, and storage equipment in the computer-room floor area; do not substitute the whole site's utility connection or actual annual electricity demand.
  • If installed IT power cannot be determined for delegated-regulation reporting, the regulation permits as the fallback and requires an explanation of why installed IT power could not be determined.
  • Check whether the defence and civil-protection exclusion applies before creating a public reporting workflow.
  • Keep the 500 kW reporting threshold and the 1 MW best-practice encouragement threshold as separate controls.
Citations
Recommended next step

Turn EED Article 12 into a data-centre reporting file

Use the Article 12 threshold, Annex VII data fields, database submission evidence, and confidentiality review to keep data-centre reporting traceable.

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Question 2

When do data centre owners and operators report?

Article 12 originally stated 15 May 2024 and every year thereafter. Delegated Regulation (EU) 2024/1364 set the operational sequence: 15 September 2024 for the first submission, then 15 May 2025 and every year thereafter. The submission covers the calendar year immediately before the reporting year.

The reporting data centre operator submits through a national reporting scheme where the Member State has established one; otherwise, the operator reports directly to the European database. A data centre operating for less than a year reports only its operating period and identifies that period.

  • Assign one owner for threshold confirmation, one for energy and water data collection, and one for database submission evidence.
  • Collect the immediately preceding calendar year's information and KPIs before the annual filing window.
  • Check whether the Member State requires submission through a national scheme or direct use of the European database.
  • Preserve the platform submission receipt, submitted values, source-meter extracts, approval record, and any correction history.
Citations
Question 3

What information and metrics are reportable?

Annex VII gives the minimum public information categories. The record should identify the data centre, owner and operators, start date, municipality, floor area, installed power, annual incoming and outgoing data traffic, and the amount of data stored and processed.

For performance, Annex VII points to the last full calendar year and KPIs covering energy consumption, power utilisation, temperature set points, waste heat utilisation, water usage, and renewable-energy use. Delegated Regulation (EU) 2024/1364 supplies the detailed fields and calculation methods. It also defines the first calculated indicators: power usage effectiveness, water usage effectiveness, energy reuse factor, and renewable energy factor.

  • Facility identity: name, owner, operator, operating start date, and municipality.
  • Capacity and activity: floor area, installed power, annual incoming and outgoing data traffic, and stored or processed data.
  • Performance KPIs: energy consumption, power utilisation, temperature set points, waste heat utilisation, water usage, and renewable-energy use.
  • Evidence source: metering extracts, capacity calculations, traffic or storage reports, renewable-energy documentation, waste-heat records, and water-use records.
Citations
Question 4

What is the Commission database and rating scheme?

Article 12 requires the Commission to establish a European database containing information communicated by obligated data centres. The database is public at aggregated level, and the Commission energy page describes it as collecting and publishing data relevant to energy performance and water footprint.

Delegated Regulation (EU) 2024/1364 is the first phase of the common Union rating scheme. Its Annex IV limits public database information to aggregated Member State and Union levels and provides size bands and aggregate indicators. The Commission also provides an online dashboard for those aggregated data. As of 24 July 2026, the Commission describes a further rating regulation as still under preparation, so the first-phase indicators should not be presented as a final facility rating.

  • Use the European database workflow for reporting, not only a local spreadsheet or sustainability-report note.
  • Separate public aggregate database publication from confidential information protected by Union or national trade-secret and confidentiality law.
  • Track Commission guidance, reporter guides, national contact points, and dashboard updates because the database process can affect evidence expectations.
  • Do not invent a facility rating from the four first-phase indicators; preserve the submitted values and use only an applicable Commission methodology or platform output.
Citations
Energy performance of data centres

The Commission topic page links the reporting database, guidance material, national contact points, aggregated dashboard, and delegated regulation.

Question 5

What evidence should teams retain for Article 12 data centre reporting?

Keep evidence that proves scope, source data, submission, and follow-up. The audit trail should show why a facility was included or excluded, how installed IT power was calculated, what reporting-period data was used, and what was submitted or published.

Evidence should be facility-specific. Generic EED policy statements do not prove Article 12 compliance if they cannot be tied to the data-centre boundary, meters, source systems, delegated-regulation data fields, and database submission.

  • Scope record showing facility name, owner, operator, municipality, data-centre boundary, installed IT power calculation, and any defence or civil-protection exclusion analysis.
  • Source data for Annex VII categories: floor area, installed power, traffic, stored or processed data, energy, power utilisation, temperature set points, waste heat, water, and renewable-energy use.
  • Annual reporting pack with the reporting period, internal approvals, database submission receipt, submitted values, and any later correction or authority correspondence.
  • Confidentiality review identifying any trade-secret or confidentiality redactions and the legal basis for withholding those values from public availability.
  • Change log for new halls, equipment changes affecting nominal installed IT demand, retrofits, metering changes, outsourcing changes, closure, expansion past 500 kW, or movement past 1 MW.
Citations
Primary sources

References and citations

Commission Delegated Regulation (EU) 2024/1364
eur-lex.europa.eu
Referenced sections
  • Articles 2 and 3 and Annexes I and II support retaining the threshold basis, reporting period, submission route, detailed fields, calculation inputs, and fallback explanations.
"shall communicate to the European database"
Directive (EU) 2023/1791
eur-lex.europa.eu
Referenced sections
  • Primary legal source for Article 12, the 500 kW installed IT power threshold, the defence and civil-protection exclusion, the 1 MW best-practice point, the European database, the rating-scheme delegation, and Annex VII data categories.
"By 15 May 2024 and every year thereafter"
Directive (EU) 2023/1791, Annex VII
eur-lex.europa.eu
Referenced sections
  • Annex VII lists the minimum identity, capacity, traffic, storage, and performance information to monitor and publish for Article 12 data centres.
"energy consumption, power utilisation, temperature set points"
Directive (EU) 2023/1791, Article 12
eur-lex.europa.eu
Referenced sections
  • Article 12 provides the original 15 May 2024 date and annual cadence for the public information obligation.
"By 15 May 2024 and every year thereafter"
Directive (EU) 2023/1791, Article 12 and Annex VII
eur-lex.europa.eu
Referenced sections
  • Article 12 and Annex VII support the evidence categories for threshold, public availability, confidentiality, and monitored data fields.
"except for information subject to Union and national law"
Directive (EU) 2023/1791, Article 12 and Article 33
eur-lex.europa.eu
Referenced sections
  • Article 12 establishes the European database and aggregated public availability; Article 33 empowers the Commission to create the common Union sustainability rating scheme.
"European database on data centres"
Directive (EU) 2023/1791, Article 12 and recital 86
eur-lex.europa.eu
Referenced sections
  • Article 12 sets the 500 kW threshold, defence and civil-protection exclusion, European database, and 1 MW best-practice point; recital 86 explains the data-centre scope.
"spaces and equipment that serve primarily or exclusively for data-related functions"
Energy performance of data centres
energy.ec.europa.eu
Referenced sections
  • The Commission topic page supports retaining database, reporter guide, FAQ/guidance, national contact point, and dashboard evidence.
"fulfil their reporting obligations"
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