While ultimately non-binding, the new Recommendation by the commission tells planners and regulators what they should take into account before approving major energy investments
April 16th, 2026 – The EU has had a rule on the books since 2023 requiring that energy efficiency alternatives should be considered before approving any major energy investment above €100 million. However, this framework faced several problems, derived from diverging interpretations and implementation standards between Member States, that ultimately undermined this objective. The Commission’s Recommendation published today sets out to put an end to that problem, providing a detailed, seven-step analytical framework that tells decision-makers across all member states how to run the numbers, what to count, and how to justify their choices.
The instrument is a Recommendation, which means it is not legally binding, and therefore member states are not required to follow it. That being said, article 3 of the Energy Efficiency Directive (the provision that requires the analysis) is already law, and member states were supposed to have transposed it by October 2025. The methodology was always going to be the hard part, and most member states have been waiting for this kind of guidance before committing to a national framework.
The Energy Efficiency First principle, as it stands in the Directive, requires national, regional, and sectoral decision-makers to systematically consider energy efficiency alternatives before approving investments that affect energy supply or consumption above the threshold. That means grid expansions, district heating systems, gas infrastructure upgrades, major building programmes, and large transport projects all need to go through the analysis. Crucially, the obligation is not limited to public bodies, as private operators making decisions above the threshold are in scope too.
The Recommendation provides a seven-step template: establish a baseline scenario; set a timeframe and social discount rate; identify and monetise all costs and benefits including co-benefits; select an aggregation method; rank alternatives transparently; test robustness through sensitivity analysis; and account for distributional effects. Each step is explained in detail, with sector-specific examples and references to the EU’s Better Regulation toolbox. The Commission also sets out what member states must report on EEF application in their integrated national energy and climate plans, creating a soft accountability trail even without binding force.
The Recommendation was adopted on 11 March 2026 and published in the Official Journal on 16 April 2026. It is relevant to energy regulators, infrastructure planners, national competent authorities, project developers, legal practitioners advising on major energy investments, and financial institutions financing EU energy infrastructure.
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The most consequential part of the Recommendation is its treatment of co-benefits, the social, environmental, and economic benefits of energy efficiency that go beyond simply using less energy. Classical infrastructure cost-benefit analysis ignores most of these, focusing on direct costs and direct capacity benefits instead, and it typically assigns zero value to health outcomes, air quality improvements, energy poverty reduction, or macroeconomic productivity effects. Under that narrow approach, building new infrastructure almost always looks better on paper than investing in efficiency, as the costs are visible, the financing is straightforward, and the timeline is more manageable. The Recommendation sets out a new system under which health impacts, improved air quality, reduced energy poverty, employment effects, and productivity gains all need to be identified, quantified where possible, and monetised where robust methods exist.
To illustrate the difference with an example, take a competition between district heating expansion and a combination of building renovation and local heat pumps. Under the classical analysis, the centralised infrastructure usually wins. Under the broader analysis the Recommendation requires, that being one that captures the health benefits of better indoor air quality, the reduced burden on public health systems, avoided grid investment, and the alleviation of energy poverty, the efficiency alternative often performs comparably or better. The Recommendation makes the broader standard the expected one, rather than an exceptional one, which was the case up until now.
The social discount rate matters too, and the Recommendation is direct about it. The choice of rate materially affects which options look attractive. A lower social discount rate increases the present value of long-term co-benefits, tilting the analysis toward efficiency solutions that deliver benefits gradually over time rather than infrastructure that delivers capacity immediately. The Recommendation calls for sensitivity analysis on the discount rate, which means decision-makers cannot simply select a rate that produces their preferred outcome without disclosing what a different rate would yield. That transparency requirement, while technically a methodological point, has strong implications for how infrastructure decisions can be justified in regulatory and permitting proceedings.
The political timing of the Recommendation reflects something broader than a routine guidance exercise. The Energy Efficiency Roadmap published in June 2025, the Affordable Energy Action Plan from February 2025, and the Competitiveness Compass are all pushing energy efficiency toward the centre of EU industrial and energy security strategy, particularly as the EU works to eliminate Russian energy imports, and faces the consequences of global energy insecurity. This Recommendation is part of that same political push, giving the EEF principle the operational infrastructure it has lacked since the Directive was adopted.
The implications generated by this recommendation are immediate, as, for instance, a developer bringing a gas infrastructure project or grid expansion above the €100 million threshold can no longer simply assert that efficiency alternatives were considered, since the Recommendation creates an expectation that the consideration is documented, structured, and conducted using a methodology broadly consistent with this framework. Regulators and competent authorities will increasingly treat these guidelines as the reference point when reviewing applications, and decisions that diverge from them will need to explain why. Furthermore, in proceedings before national administrative courts (or, where the underlying Directive obligation is engaged, the Court of Justice) the absence of a documented EEF analysis will become a vulnerability.
