A CAE or Energy Savings Certificate is an electronic document that guarantees that, after carrying out an energy efficiency action, a new final energy saving equivalent to 1kWH has been achieved.


This year, this type of accreditation mechanism for the achievement of energy savings has arrived in Spain, the purpose of which is to contribute to the fulfilment, by 2030, of the final cumulative energy savings objectives set, and  it applies to the same obliged subjects of the SNOEE, these being: gas and electricity marketing companies,  wholesale petroleum products operators and wholesale liquefied petroleum gas operators.

On the other hand, this system aims  to promote an increase in investment in energy efficiency technology with a benefit for consumers, as well as to encourage the adoption of actions aimed at improving business competitiveness and productivity.

It is important not to confuse Energy Saving  Certificates (EACs)  with Energy Performance Certificates  (EECs) as they have nothing to do with each other and are regulated by different regulations. The main objective of the EACs is to certify and recognize specific measures that lead to the reduction of energy consumption in buildings, systems or processes, while the main objective of the CEEs is to assess and classify the energy performance of a building or property.

Which agents are involved in the CAE System?

  • Obligated subjects: refers to those companies that sell gas and electricity, operators of wholesale petroleum products and operators of wholesale liquefied petroleum gases.
  • Delegated subjects: those accredited intermediaries that are responsible for executing the energy saving projects that generate CAE. This subject must be accredited by the National Coordinator of the CAE System.
  • Energy Saving Verifier: it is part of the National Accreditation Entity and will verify that the documentation submitted by the obliged companies or their delegates to obtain certificates in accordance with the regulations.

The CAE system has several advantages,  among which are: accelerating energy saving targets, reducing the costs of energy consumption in our country, generating non-energy benefits such as boosting employment and monetizing the energy savings obtained by end consumers.

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