Private investment in energy efficiency: what changes for companies and ESCOs in 2026

Key data

Companies in the energy sector, construction companies and energy service providers (ESCOs) have a clear signal from Brussels on the table: private investment in energy efficiency will receive a regulatory and financial boost in the coming months. The Recommendation (EU) 2026/537, adopted on 10 March 2026, marks the path that Member States must follow to unlock that private capital.

This is not a regulation with sanctions or mandatory compliance deadlines. But ignoring it can be costly in terms of lost opportunities: access to financing, public contracts and positioning ahead of future regulations that will be binding.

What does this regulation establish?

Recommendation 2026/537 guides Member States on how to facilitate and mobilize private investment in energy efficiency projects. Its objective is to reduce the risks perceived by private investors, which until now have slowed the flow of capital towards this type of project.

To achieve this, the European Commission proposes that countries adapt their frameworks in three dimensions:

• Regulatory framework: simplify and clarify the rules affecting energy efficiency projects.
• Tax framework: introduce incentives that make private investment in this area more attractive.
• Financial framework: reduce barriers to capital access for energy improvement projects, especially for SMEs.

Although the recommendation is not binding, it establishes a reference framework that can directly influence future national regulations and the eligibility criteria for accessing European funds. Member States that adopt these measures first will be better positioned to attract community financing.

Economic and operational impact

The impact of this recommendation is not measured in fines or direct costs, but in business opportunities and access to capital. Companies that anticipate the regulatory and tax changes that will derive from this recommendation will be able to position themselves better in a market that will grow.

The concrete effects expected are:

• Greater availability of private financing for energy reforms, especially for SMEs and self-employed workers who today have difficulty accessing capital.
• New business opportunities for ESCOs and construction companies that offer energy improvement services to companies and institutions.
• Changes in the criteria for accessing European funds, which could prioritize projects aligned with the Commission's recommendations.
• Regulatory anticipation: companies that adapt their business models now will avoid adaptation costs when measures become mandatory.

The risk for those who do not act is not an immediate sanction, but being left out of the first cycles of financing and contracts when the market reactivates with the new rules.

Who does it affect?

• Energy sector companies: energy suppliers, network managers and energy service companies that develop efficiency projects.
• Construction companies: especially those specialized in rehabilitation and renovation of buildings with energy efficiency criteria.
• ESCOs (Energy Service Companies): energy service companies that finance and manage improvement projects in exchange for the savings generated. They are the main direct beneficiaries.
• Private investors: funds, family offices and financial entities seeking opportunities in the energy efficiency sector.
• SMEs and self-employed workers: companies that need to finance energy improvements in their facilities and that will be able to access more favorable conditions if Member States adapt their financial frameworks.

Practical example

A medium-sized ESCO that offers energy performance contracts to industrial companies faces a common barrier today: customers do not want to assume the initial cost of investment and the ESCO does not always have access to financing on competitive terms.

If Spain adapts its regulatory and tax framework following the Commission's recommendations, this ESCO could:

• Access private financing lines at lower capital cost, as the risk perceived by investors is reduced.
• Offer more competitive contracts to its industrial clients, as the conditions of the underlying financing improve.
• Position itself as an eligible provider for projects co-financed with European funds that follow the criteria of Recommendation 2026/537.

Similarly, a food sector SME that wants to renovate its refrigeration system to reduce energy consumption could find, in the coming months, new private financing lines with more accessible conditions than current ones, derived from the changes that Member States implement in response to this recommendation.

What should companies do now?

1. Identify if your company fits the beneficiary profiles: energy sector, construction, ESCOs or SMEs with energy improvement needs. If so, this recommendation affects you directly.
2. Monitor national regulatory changes: Member States will adapt their regulatory, tax and financial frameworks in response to this recommendation. Staying aware of those changes will allow you to act before the competition.
3. Review your financing access strategy: if you have energy efficiency projects pending financing, analyze whether the new conditions expected can improve your current options.
4. Position yourself as a relevant player in the market: companies that develop energy efficiency capabilities now will be better positioned to capture contracts and funds when the market reactivates with the new rules.
5. Consult with a specialist advisor in European funds: to assess whether your projects can be covered by financing lines that follow the criteria of Recommendation 2026/537.