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Energy Efficiency Directive

In ForceDirective

Introduction

Directive (EU) 2023/1791 is a recast of the Energy Efficiency Directive (EED), serving as a cornerstone of the European Union's 'Fit for 55' package. It aims to significantly reduce energy consumption across the EU to meet the 2030 climate target of reducing net greenhouse gas emissions by at least 55% compared to 1990 levels. This legislation raises the EU-level energy efficiency targets, making them binding, and introduces stricter obligations for Member States, the public sector, and energy-intensive businesses.

Main Goal

The primary objective is to collectively ensure an 11.7% reduction in final energy consumption at the EU level by 2030 (compared to the 2020 reference scenario). It enshrines the 'Energy Efficiency First' principle into law, mandating that energy efficiency solutions be considered in all relevant policy and investment decisions.

Who It Applies To

The Directive applies to:

  • Member States: Must set national contributions and transposition measures.
  • Public Sector Bodies: National, regional, and local authorities.
  • Businesses: Particularly those with high energy consumption (regardless of size classification as SME or non-SME) and data centers.
  • Energy Companies: Distributors, retail sales companies, and transmission/distribution system operators.

Key Provisions

1. Energy Efficiency First Principle

Member States must ensure energy efficiency solutions are assessed in planning, policy, and major investment decisions (over €100 million, or €175 million for transport) regarding energy systems and non-energy sectors like buildings and ICT.

2. Public Sector Leadership

  • Reduction Target: The public sector must reduce its total final energy consumption by 1.9% annually.
  • Renovation: 3% of the total floor area of buildings owned by public bodies must be renovated annually to nearly zero-energy building (NZEB) or zero-emission standards.

3. Business Obligations (Energy Management & Audits)

The Directive shifts the criterion for audits from company size (SME vs. Non-SME) to energy consumption levels:

  • Energy Management Systems: Enterprises with an average annual energy consumption higher than 85 TJ must implement a certified energy management system.
  • Energy Audits: Enterprises with an average annual energy consumption higher than 10 TJ (that do not have a management system) must undergo an energy audit every four years.

4. Data Centers

Owners and operators of data centers with an installed IT power demand of at least 500 kW must publicly report annual performance data (energy consumption, water usage, waste heat, etc.) to a European database.

5. Heating and Cooling

Stricter criteria for the definition of 'efficient district heating and cooling', progressively tightening towards 2050 to require higher shares of renewable energy and waste heat.

6. Energy Savings Obligation

Member States must achieve new annual energy savings among final customers. The rate increases over time:

  • 0.8% (2021–2023)
  • 1.3% (2024–2025)
  • 1.5% (2026–2027)
  • 1.9% (2028–2030)

Key Dates

  • Entry into Force: 10 October 2023.
  • Transposition Deadline: Member States must bring laws into force by 11 October 2025 (for most articles).
  • Data Center Reporting: First reporting due by 15 May 2024.
  • Audit/System Deadlines:
    • First energy audit for >10 TJ companies: 11 October 2026.
    • Energy management system for >85 TJ companies: 11 October 2027.

Penalties

Member States are required to lay down rules on penalties applicable to infringements of national provisions adopted pursuant to this Directive. These penalties must be effective, proportionate, and dissuasive. Specific penalty amounts are determined by national legislation.

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Pillars

EnvironmentalGovernance

Audience

BusinessStates

Applicable Area

EU

Categories

Energy EfficiencyEnergy ManagementEnergy AuditsDecarbonizationSustainable BuildingsLegislation & frameworksEnergy ReductionPublic PolicySustainable ConstructionRegulatory Compliance

Directive (EU) 2023/1791

Timeline
  • Proposed
    Jul 14, 2021
  • Approved
    Jul 11, 2023
  • Adopted
    Sep 13, 2023
  • Published
    Sep 20, 2023
  • In Force
    Oct 10, 2023
  • In Application
    Jun 30, 2024
  • Last Updated
    Mar 10, 2026
Implementation timeline for businesses and public entities:

* **10 October 2023**: Legislation entered into force. The 'Energy Efficiency First' principle applies to major investment decisions from this date.
* **15 May 2024 (and annually thereafter)**: **WHO**: Owners/operators of data centers with installed IT power demand ≥ 500 kW. **WHAT**: Must make information publicly available regarding energy performance, water footprint, and demand-side flexibility (European database).
* **11 October 2025**: **WHO**: Member States. **WHAT**: Deadline to transpose most provisions into national law. Businesses should expect national compliance regimes to be active by this date.
* **1 January 2026**: **WHAT**: Energy savings from direct fossil fuel combustion technologies generally cease to be eligible for counting towards national energy savings obligations (with specific exceptions for energy-intensive industries until 2030).
* **11 October 2026**: **WHO**: Enterprises with average annual energy consumption > 10 TJ (over the previous 3 years). **WHAT**: Deadline to carry out the first Energy Audit (subsequently every 4 years). *Note: Replaces previous Non-SME audit requirement based on turnover/headcount.*
* **11 October 2027**: **WHO**: Enterprises with average annual energy consumption > 85 TJ (over the previous 3 years). **WHAT**: Deadline to implement a certified Energy Management System (e.g., ISO 50001).
* **31 December 2027**: **WHO**: District heating/cooling operators. **WHAT**: Existing definition of 'efficient district heating and cooling' applies until this date; criteria tighten progressively from 1 January 2028.
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Documents & Attachments

Official Documents

Internal Markets for Renewable Gas, Natural Gas and Hydrogen Rules
Directive (EU) 2024/1788Jun 13, 2024
DirectiveEnglishEU
Union Data Centre Rating Scheme Regulation
Commission Delegated Regulation (EU) 2024/1364Mar 14, 2024
Delegated ActEnglishEU
EU Data Centre Sustainability Rating Scheme
Delegated Regulation (EU) 2024/1364Mar 14, 2024
Delegated ActEnglishEU
Social Climate Fund Regulation
Regulation (EU) 2023/955May 10, 2023
RegulationEnglishEU
Revision of Primary Energy Factor for Electricity
Delegated Regulation (EU) 2023/807Dec 15, 2022
Delegated ActEnglishEU
EEOS - Ireland
Oct 21, 2022
Implementing ActEnglishEU
Internal Market for Electricity Directive
Directive (EU) 2019/944Jun 5, 2019
DirectiveEnglishEU
Energy Efficiency and Energy Union Governance Brexit Amendment
Decision (EU) 2019/504Mar 19, 2019
DecisionEnglishEU
Efficient Heating and Cooling Assessments Regulation
Commission Delegated Regulation (EU) 2019/826Mar 4, 2019
Delegated ActEnglishEU
Energy Efficiency Directive
Directive (EU) 2018/2002Dec 11, 2018
DirectiveEnglishEU
Governance of the Energy Union and Climate Action Regulation
Regulation (EU) 2018/1999Dec 11, 2018
RegulationEnglishEU
Energy Performance of Buildings and Energy Efficiency
Directive (EU) 2018/844May 30, 2018
DirectiveEnglishEU
Harmonised Efficiency Reference Values for Separate Production
Delegated Regulation (EU) 2015/2402Oct 12, 2015
Delegated ActEnglishEU
Energy Efficiency Croatia Accession Adaptation
Council Directive 2013/12/EUMay 13, 2013
DirectiveEnglishEU
Energy Efficiency Directive
Directive 2012/27/EUOct 25, 2012
DirectiveEnglishEU
Detailed Calculations for EU Countries Indicative National Contributions to the Union’s Energy Efficiency Targets
InformationEnglishEU
List of National Contact Points and Information Resources
InformationEnglishEU
EEOS - Denmark
GuidanceEnglishEU

National Transpositions

Energetická náročnost budov
222/2024 Sb.Jul 18, 2024
Local Implementing ActCzech Republic
Vyúčtování dodávek a souvisejících služeb v energetických odvětvích
219/2024 Sb.Jul 16, 2024
Local Implementing ActCzech Republic
Statistická vyhláška
4/2024 Sb.Jan 16, 2024
Local Implementing ActCzech Republic
Public Procurement
166/2023 Sb.Jun 15, 2023
Local LawCzech Republic
Pravidlá vnútorného trhu s plynom
208/2023 Z. z.Jun 14, 2023
Local LawSlovakia
Building Act Amendment
152/2023 Sb.Jun 4, 2023
Local LawCzech Republic
Hot Water Temperature and Heat Cost Allocation
503/2022 Z. z.Dec 28, 2022
Local LawSlovakia
Cenová regulácia v tepelnej energetike
312/2022 Z. z.Sep 15, 2022
Local LawSlovakia
Energy and Supported Energy Sources Act
232/2022 Sb.Aug 8, 2022
Local LawCzech Republic
Energy and Supported Energy Sources Act
176/2022 Sb.Jun 26, 2022
Local LawCzech Republic
Energy Assessment and Monitoring System
15/2022 Sb.Jan 25, 2022
Local Implementing ActCzech Republic
Invoicing for Energy Supplies and Related Services
207/2021 Sb.May 25, 2021
Local Implementing ActCzech Republic
Energetický audit
140/2021 Sb.Mar 30, 2021
Local Implementing ActCzech Republic
Energy Assessment and Energy Consumption Monitoring System
141/2021 Sb.Mar 30, 2021
Local Implementing ActCzech Republic
State Housing Development Fund and National Property Fund Law
113/2020 Sb.Mar 23, 2020
Local LawCzech Republic
Energy Management Law
3/2020 Sb.Jan 9, 2020
Local LawCzech Republic
Personal Data Processing Law
110/2019 Sb.Apr 23, 2019
Local LawCzech Republic
Air Protection
172/2018 Sb.Aug 15, 2018
Local LawCzech Republic
postup pri výpočte faktora primárnej energie systému centralizovaného zásobovania teplom
308/2016 Z. z.Nov 23, 2016
Local LawSlovakia
Public Buildings Energy Intensity Monitoring Decree
192/2016 Z. z.Jun 10, 2016
Local LawSlovakia
Public Procurement Act
134/2016 Sb.Apr 28, 2016
Local LawCzech Republic
Energy Efficiency Monitoring Data
13/2016 Z. z.Jan 1, 2016
Local LawSlovakia
Public Procurement
343/2015 Z. z.Dec 3, 2015
Local LawSlovakia
Energy Auditor Professional Competence Exam
319/2015 Z. z.Nov 26, 2015
Local LawSlovakia
Energy Audit Decree
179/2015 Z. z.Jul 31, 2015
Local LawSlovakia
Energetický zákon
131/2015 Sb.Jun 4, 2015
Local LawCzech Republic
Poskytovanie Podpornej a Garantovanej Energetickej Služby
99/2015 Z. z.May 26, 2015
Local LawSlovakia
Energy Management and Administrative Fees
103/2015 Sb.May 3, 2015
Local LawCzech Republic
Energy Law
104/2015 Sb.May 3, 2015
Local LawCzech Republic
Energy Efficiency Assessment
88/2015 Z. z.Apr 29, 2015
Local LawSlovakia
Energetická efektívnosť
321/2014 Z. z.Nov 28, 2014
Local LawSlovakia
Heating and Air Conditioning Systems Inspection Law
314/2012 Z. z.Oct 11, 2012
Local LawSlovakia
Energy Law
251/2012 Z. z.Aug 31, 2012
Local LawSlovakia
Regulation in Network Industries
250/2012 Z. z.Aug 31, 2012
Local LawSlovakia
Air Protection Act
201/2012 Sb.Jun 12, 2012
Local LawCzech Republic
Supported Energy Sources Act
165/2012 Sb.May 29, 2012
Local LawCzech Republic
Energy Law
211/2011 Sb.Jul 18, 2011
Local LawCzech Republic
Podpora obnoviteľných zdrojov energie a vysoko účinnej kombinovanej výroby
599/2009 Z. z.Dec 31, 2009
Local LawSlovakia
Podpora obnoviteľných zdrojov energie a vysoko účinnej kombinovanej výroby
309/2009 Z. z.Jul 29, 2009
Local LawSlovakia
Energy Law
158/2009 Sb.Jun 3, 2009
Local LawCzech Republic
Heating and Hot Water Supply Rules
194/2007 Sb.Jul 30, 2007
Local Implementing ActCzech Republic
Energy Management Law
177/2006 Sb.May 4, 2006
Local LawCzech Republic
Energy Performance of Buildings
555/2005 Z. z.Dec 13, 2005
Local LawSlovakia
Thermal Energy Law
657/2004 Z. z.Dec 11, 2004
Local LawSlovakia
Environmental Impact Assessment Act
zákon o posuzování vlivů na životní prostředíMar 19, 2001
Local LawCzech Republic
Energy Management
406/2000 Sb.Nov 29, 2000
Local LawCzech Republic
State Property Administration Act
278/1993 Z. z.Nov 26, 1993
Local LawSlovakia
Environmental Impact Assessment
163/2006 Sb.
Local LawCzech Republic
Energy Management Act
393/2007 Sb.
Local LawCzech Republic
Consumer and Market Regulation Amendment
36/2008 Sb.
Local LawCzech Republic
Energy Law
299/2011 Sb.
Local LawCzech Republic
Energy Management Law
318/2012 Sb.
Local LawCzech Republic
Infrastructure Acceleration Law
403/2020 Sb.
Local LawCzech Republic
Waste and End-of-Life Products Act
543/2020 Sb.
Local LawCzech Republic
Stavební zákon
283/2021 Sb.
Local LawCzech Republic
Energy Act Amendment
362/2021 Sb.
Local LawCzech Republic
Supported Energy Sources
382/2021 Sb.
Local LawCzech Republic
Consumer Protection and Civil Code Amendment Law
374/2022 Sb.
Local LawCzech Republic
Services for Apartments and Non-residential Premises
424/2022 Sb.
Local LawCzech Republic
Energy Law
469/2023 Sb.
Local LawCzech Republic
Liniový zákon
465/2023 Sb.
Local LawCzech Republic
Pricing Law
265/2024 Sb.
Local LawCzech Republic
Energetický zákon
87/2025 Sb.
Local LawCzech Republic
State Housing Development Fund and National Property Fund
276/2012 Sb.
Local LawCzech Republic
State Housing Development Fund and National Property Fund
61/2005 Sb.
Local LawCzech Republic
Státní fond podpory investic
211/2000 Sb.
Local LawCzech Republic
Energy Law
223/2025 Sb.
Local LawCzech Republic
Civil Code
89/2012 Sb.
Local LawCzech Republic
Recodification of Private Law
303/2013 Sb.
Local LawCzech Republic
Supported Energy Sources
310/2013 Sb.
Local LawCzech Republic
Consumer Protection Law Amendment
378/2015 Sb.
Local LawCzech Republic
Product Conformity Assessment and Technical Requirements
265/2017 Sb.
Local LawCzech Republic
Environmental Impact Assessment Law
326/2017 Sb.
Local LawCzech Republic
Payment System Amending Law
371/2017 Sb.
Local LawCzech Republic
Tourism Business Conditions and Activities
111/2018 Sb.
Local LawCzech Republic
Technical Product Requirements Law
22/1997 Sb.
Local LawCzech Republic
State Statistical Service and Social Security Amendment
411/2000 Sb.
Local LawCzech Republic
Consumer Protection
634/1992 Sb.
Local LawCzech Republic
Technical Requirements for Products Law
71/2000 Sb.
Local LawCzech Republic
Apartment and Non-Residential Premises Services
67/2013 Sb.
Local LawCzech Republic
Energy Act
670/2004 Sb.
Local LawCzech Republic
Building Act Consequential Amendments
284/2021 Sb.
Local LawCzech Republic
Heating and Hot Water Cost Allocation
376/2021 Sb.
Local Implementing ActCzech Republic
Vyúčtování dodávek a služeb v energetických odvětvích
271/2022 Sb.
Local Implementing ActCzech Republic
Apportionment of Heating and Shared Hot Water Costs
274/2023 Sb.
Local Implementing ActCzech Republic
Regulatory Reporting
554/2020 Sb.
Local Implementing ActCzech Republic
Regulatory Reporting
262/2015 Sb.
Local Implementing ActCzech Republic

General Information Documents

REPORT FROM THE COMMISSION TO THE EUROPEAN PARLIAMENT AND THE COUNCIL on Energy Efficiency financing in Europe An assessment of public spending for energy efficiency and the energy performance of buildings
Mar 10, 2026
InformationEnglishEU
Overview
InformationEnglishEU
Energy efficiency targets
InformationEnglishEU
Energy Efficiency Obligation Schemes (EEOS) in the EU (JRC)
InformationEnglishEU

Supportive Documents

Commission Recommendation of 12 December 2023 on transposing Article 30 on national energy efficiency funds, financing and technical support of the Directive (EU) 2023/1791 on energy efficiency (EED recast)
Dec 12, 2023
GuidanceEnglishEU
EEOS Guidance document (Ireland)
GuidanceEnglishEU