Directive (EU) 2023/1791 and Delegated Regulation (EU) 2024/1364
Energy Efficiency Directive: who owes the audit, and when
Read from the Official Journal, the Commission's register and two national acts on 18 October 2026.
Above 10 TJ a year an enterprise owes an energy audit, and above 85 TJ a certified energy management system, both on its own state's terms and dates. A data centre from 500 kW reports every year, directly.
Does Article 11 reach your company?
Six questions, answered in your browser. Nothing is sent or stored.
Your answer
Start with your energy use
It decides whether Article 11 reaches you at all.
One answer above is still open: Where is the enterprise established?. The record states every answer, so the offer appears as soon as it is given (€29).
- Who it applies to
- Enterprises using more than 10 TJ of energy a year, averaged over three years with every carrier counted, and data centres from 500 kW of installed IT power.
- The dates
- On your state's dates. 11 October 2026 for the first audit and 11 October 2027 for the management system are only the latest a state may set.
- The one thing to do
- Answer the six questions below. A certified ISO 14001 or EMAS system that includes an Annex VI energy audit is exempt under Article 11(11).
The act that carries Article 11, in all 27 states
Every state has notified measures for this Directive, 864 of them. We name the one that carries Article 11 in 9 states; in the other 18 the state's law governs and we have not yet named the act.
| Member state | The act that carries Article 11 | In force | Its own dates |
|---|---|---|---|
| Austria | Verordnung des Vorstands der E-Control über die Festlegung des Formats, der Struktur und der Gliederung des standardisierten Berichtswesens für Energieaudits und Managementsysteme bei verpflichteten Unternehmen (Energieeffizienz-Standardisierte-Kurzberichte-Verordnung) | 19 August 2023 | Not yet read |
| Belgium | Région de Bruxelles-Capitale : 8 DECEMBRE 2016. - Arrêté du Gouvernement de la Région de Bruxelles-Capitale relatif à l'audit énergétique des grandes entreprises et à l'audit énergétique du permis d'environnement (version consolidée) | 22 December 2016 | Not yet read |
| Bulgaria | Not yet named. The register lists 34 measures. | Not yet read | |
| Croatia | Not yet named. The register lists 15 measures. | Not yet read | |
| Cyprus | Not yet named. The register lists 6 measures. | Not yet read | |
| Czechia | Vyhláška č. 140/2021 Sb., o energetickém auditu | 31 March 2021 | Not yet read |
| Denmark | Bekendtgørelse om obligatoriske energiledelsessystemer og energisyn og klimasyn i visse virksomheder | 11 October 2025 |
|
| Estonia | Not yet named. The register lists 13 measures. | Not yet read | |
| Finland | Not yet named. The register lists 12 measures. | Not yet read | |
| France | Not yet named. The register lists 5 measures. | Not yet read | |
| Germany | Gesetz zur Steigerung der Energieeffizienz und zur Änderung des Energiedienstleistungsgesetzes | 18 November 2023 |
|
| Greece | Not yet named. The register lists 1 measures. | Not yet read | |
| Hungary | Not yet named. The register lists 173 measures. | Not yet read | |
| Ireland | Not yet named. The register lists 2 measures. | Not yet read | |
| Italy | Not yet named. The register lists 1 measures. | Not yet read | |
| Latvia | Ministru kabineta 2016. gada 26. jūlija noteikumi Nr. 487 "Uzņēmumu energoaudita noteikumi" | 28 July 2016 | Not yet read |
| Lithuania | Lietuvos Respublikos energetikos ministro 2026 m. gegužės 28 d. įsakymas Nr. 1-134 „Dėl energetikos ministro 2017 m. vasario 22 d. įsakymo Nr. 1-46 „Dėl įmonių, kurios nėra smulkiojo ir vidutinio verslo subjektai, energijos vartojimo audito atlikimo ir ataskaitų teikimo priežiūros tvarkos aprašo patvirtinimo“ pakeitimo“ | 29 May 2026 | Not yet read |
| Luxembourg | Not yet named. The register lists 18 measures. | Not yet read | |
| Malta | Not yet named. The register lists 2 measures. | Not yet read | |
| Netherlands | Not yet named. The register lists 8 measures. | Not yet read | |
| Poland | Not yet named. The register lists 35 measures. | Not yet read | |
| Portugal | Not yet named. The register lists 5 measures. | Not yet read | |
| Romania | Not yet named. The register lists 15 measures. | Not yet read | |
| Slovakia | Vyhláška Ministerstva hospodárstva Slovenskej republiky č. 179/2015 Z. z. o energetickom audite | 1 August 2015 | Not yet read |
| Slovenia | Pravilnik o metodologiji za izdelavo in vsebini energetskega pregleda | 11 June 2016 | Not yet read |
| Spain | Not yet named. The register lists 32 measures. | Not yet read | |
| Sweden | Not yet named. The register lists 10 measures. | Not yet read |
Whatever your state has done, Delegated Regulation (EU) 2024/1364 binds a data centre from 500 kW directly: a report to the European database by 15 May every year.
Questions
Who must do an energy audit under the Energy Efficiency Directive?
An enterprise above 10 TJ of energy a year, averaged over three years with every carrier counted, that has no certified energy management system. The Directive draws no SME line; your state's law decides the rest.
Is ISO 50001 mandatory?
Above 85 TJ a year your state's law must require a certified energy management system. The Directive names no standard, and ISO 50001 is the usual one.
Does ISO 14001 exempt us from the energy audit?
Under Article 11(11), only if the certified system includes an energy audit meeting Annex VI. Germany's EDL-G names EMAS and not ISO 14001; Denmark accepts it with an energy review.
Do data centres have to report?
Yes, from 500 kW of installed IT power. Delegated Regulation (EU) 2024/1364 applies directly: a report to the European database by 15 May every year, for the previous calendar year.
When is the deadline?
Your state's date. 11 October 2026 for the first audit and 11 October 2027 for the management system are the latest a state may set. Denmark set 1 August 2025 and 1 August 2026; Germany required the system by 18 July 2025.
How we read it
A directive binds the member states, so your own state's act is the one that binds you. We read the Directive and the delegated regulation from the Official Journal, the 864 notified measures from the Commission's register, and two national acts in full.
If you already run ISO 14001, the Annex VI energy audit is the piece that turns your certificate into the Article 11(11) exemption. ISO 14001 in StandardOS
Sources: Directive (EU) 2023/1791, Delegated Regulation (EU) 2024/1364, the Commission's register of national measures. A reading of the law, not legal advice.
The energy audit and its evidence, in one place
The Directive's duties as a catalogue, read against your state's law, with the energy audit and the data centre report, in one workspace.