What is the Energy Efficiency Directive (EED)

The Energy Efficiency Directive (EED), officially Directive (EU) 2023/1791 of the European Parliament and of the Council of 13 September 2023 (recast), which repealed Directive 2012/27/EU with effect from 12 October 2025, is a key piece of the European Union's (EU) energy policy, aiming to enhance energy efficiency within the EU. The first Energy Efficiency Directive was adopted on 25 October 2012; the version in force today is the recast of 13 September 2023, which Member States had to transpose by 11 October 2025. It serves to achieve economic and environmental benefits, enhance energy security, and reach a binding Union target of at least 11,7 % less energy consumption in 2030 compared with the 2020 EU Reference Scenario projections, capping final energy consumption at 763 Mtoe (Article 4(1)). The indicative primary energy consumption target is no more than 992,5 Mtoe.

Legal basis

What the recast changed

The recast was published in the Official Journal L 231 of 20 September 2023 and entered into force on the twentieth day following publication, recorded by EUR-Lex as 10 October 2023. Article 38 repeals the 2012 directive with effect from 12 October 2025, and Article 39 makes Articles 13 to 20 together with several annexes applicable from the same date.

The change of numbers matters for anyone quoting the directive in tender documents or building strategies. The 2012 directive set the Union's 2020 headline target of 20 %, and the 2018 amending directive raised the ambition for 2030. Both of those figures have been superseded by the 2023 recast, so documents that still cite them describe a legal situation that no longer applies.

Core measures

Key measures of the directive

Key measures include encouraging energy savings among end consumers, energy efficiency in public bodies, energy management systems for enterprises consuming more than 85 TJ per year on average, required by 11 October 2027, and energy audits for enterprises above 10 TJ that do not operate such a system (Article 11), and promoting efficiency in energy supply and use. However, the implementation poses challenges such as the need for suitable national strategies, overcoming financial and administrative hurdles, and incorporating technological advancements.

Audits by consumption

The old criterion of "large enterprises" is gone. What triggers an obligation now is measured energy consumption averaged over the previous three years across all energy carriers. Companies close to the 10 TJ line should document their consumption carefully, because the threshold decides whether an audit or a certified management system applies.

Metering

Sub-metering and the remote reading requirement

For buildings, the most tangible obligations sit in Articles 14 to 16. Article 14 covers metering for heating, cooling and domestic hot water, Article 15 covers sub-metering and cost allocation, and Article 16 sets the remote reading requirement.

Article 16(1) states that for the purposes of Articles 14 and 15, newly installed meters and heat cost allocators shall be remotely readable devices. Article 16(2) adds that meters and heat cost allocators which are not remotely readable but which have already been installed shall be rendered remotely readable or replaced with remotely readable devices by 1 January 2027, save where the Member State in question shows that this is not cost-efficient. Annex IX, point 2 completes the picture: from 1 January 2022, where remotely readable meters or heat cost allocators have been installed, billing or consumption information based on actual consumption or heat cost allocator readings shall be provided to final users at least on a monthly basis.

In Germany, the directive is implemented for heating cost billing through the Heizkostenverordnung. Devices installed after 1 December 2021 must be remotely readable, devices installed before that date must be upgraded or replaced by 31 December 2026, and tenants have been entitled to monthly consumption information since 1 January 2022. Property owners therefore face a national deadline that falls one year earlier than the European one.

Stakeholders

What it means for businesses, landlords and tenants

Specific challenges arise for businesses, landlords, and tenants. Businesses face financial burdens, complexity, regulatory requirements, and long payback periods for energy efficiency investments. Landlords deal with the "split incentive" problem, where the benefits of investments primarily accrue to tenants, and regulatory hurdles, especially for older buildings. Tenants have limited control over significant energy efficiency improvements and may lack information on how to reduce their energy use or face upfront costs.

To address these challenges, targeted support measures from governments and the EU, including financial incentives, funding programs, advisory services, and clear regulatory frameworks, are essential. Furthermore, innovative business models and technologies, such as energy contracting and digital energy management systems, could play a pivotal role in overcoming barriers and maximizing the benefits of energy efficiency for all stakeholders.

Automation

Building automation as a lever

Adding building automation into the mix introduces several significant consequences for energy efficiency initiatives, positively impacting the challenges faced by businesses, landlords, and tenants as described in the context of the Energy Efficiency Directive (EED).

• Increased energy efficiency: Automated systems optimize the use of lighting, heating, ventilation, and air conditioning (HVAC), leading to substantial energy savings. By closely monitoring and controlling energy use, buildings can operate more efficiently, directly contributing to the goals set out by the EED.
• Cost savings: Over time, the energy cost savings achieved through building automation can offset the initial investment in technology. This aspect is particularly appealing for businesses and landlords concerned about the financial implications of implementing energy efficiency measures.
• Improved comfort and productivity: For tenants and occupants, building automation systems can enhance indoor environmental quality, leading to improved comfort and potentially higher productivity levels.
• Data-driven insights: Automation technologies generate data that can be analyzed to further optimize energy use and identify additional savings opportunities.
• Regulatory compliance: Building automation can help ensure compliance with the evolving regulatory requirements related to energy efficiency. Automated systems can adapt to changes more easily, reducing the regulatory burden on all stakeholders.

Constraints

Challenges and considerations

• Upfront investment: The initial cost of installing building automation systems can be high, which might deter some stakeholders, especially small and medium-sized enterprises (SMEs) and landlords with limited financial resources.
• Technical complexity: Implementing and managing building automation systems requires technical knowledge and expertise. Businesses and landlords might need to invest in training or hire specialists to maximize the benefits of automation.
• Interoperability and standardization: The lack of standardization and interoperability between different building automation systems and devices can complicate their integration and limit their effectiveness. For meters and heat cost allocators, this point is no longer optional: newly installed devices must be remotely readable under Article 16(1), existing devices that are not remotely readable must be upgraded or replaced by 1 January 2027 under Article 16(2), and in Germany the Heizkostenverordnung sets the retrofit deadline at 31 December 2026 while requiring interfaces that are interoperable across manufacturers.
• Privacy and security: Building automation systems collect and process a significant amount of data, raising privacy and security concerns. Stakeholders must ensure that these systems are secure and that data is handled appropriately.

Check the interfaces

Remote readability alone does not satisfy the German rules. The Heizkostenverordnung also requires interoperable interfaces, so that a new metering service provider can read the devices without replacing them. Ask suppliers to confirm the interface and the handover of key material before you sign a retrofit contract.

LUPUS Expert Tip

Plan the retrofit against the earlier of the two deadlines. German property owners have to meet 31 December 2026 under the Heizkostenverordnung, while the European deadline in Article 16(2) runs to 1 January 2027. Bundling the device replacement with the monthly consumption information duty that has applied since 1 January 2022 avoids paying twice for site visits and data infrastructure.

Frequently asked questions

What does EED stand for?

EED is the common abbreviation for the Energy Efficiency Directive of the European Union. The version in force is Directive (EU) 2023/1791 of 13 September 2023, published in OJ L 231 of 20 September 2023.

Is Directive 2012/27/EU still valid?

No. Article 38 of the recast repeals Directive 2012/27/EU with effect from 12 October 2025. References to the 2012 directive and to its 2020 headline target of 20 % describe the previous legal situation.

What is the current EU energy efficiency target?

Article 4(1) requires Member States to collectively ensure a reduction of energy consumption of at least 11,7 % in 2030 compared to the projections of the 2020 EU Reference Scenario, so that the Union's final energy consumption amounts to no more than 763 Mtoe. The indicative primary energy consumption target is 992,5 Mtoe.

By when must existing meters become remotely readable?

Article 16(2) sets 1 January 2027 for devices already installed, unless the Member State shows that this is not cost-efficient. In Germany, the Heizkostenverordnung requires the upgrade or replacement by 31 December 2026.

Which companies must run an energy audit?

Article 11 links the obligation to consumption instead of company size. Enterprises with an average annual consumption above 85 TJ over the previous three years must operate a certified energy management system by 11 October 2027, and enterprises above 10 TJ without such a system are subject to an energy audit.

Conclusion

In summary, building automation presents a compelling avenue to enhance energy efficiency across various sectors, aligning with the objectives of the EED. While the benefits are considerable, addressing the associated challenges is crucial for maximizing the potential of building automation technologies in contributing to the EU's energy efficiency and sustainability goals. For property owners the practical agenda is short: check which meters and heat cost allocators are already remotely readable, plan the remaining retrofit against the 2026 and 2027 deadlines, and make sure the devices you buy offer interoperable interfaces and monthly consumption data. Remotely readable metering and sensor technology helps you implement the requirements of the directive at a predictable cost.

About the author

Matthias Wolff

Managing Partner, LUPUS-Electronics GmbH

Matthias Wolff is co-founder and managing partner of LUPUS-Electronics GmbH in Landau, Germany. The family business, founded in 2004, develops alarm, video and fire protection systems. At trade fairs such as FeuerTrutz he represents LUPUS on connected fire protection.

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