CAE in Spain, the Spanish version of the French EWCs

Registration from 99€

Proof and digital verification solutions

📌 The CAE system in Spain and how it works

Spain has introduced an energy savings certification system based on Certificados de Ahorro Energético (CAE, Energy Savings Certificates). Like CEE in France, this mechanism relies on the allocation of tradable certificates to reward those who carry out verifiable energy efficiency actions.

The operation of BDCs is governed by Real Decreto-ley 18/2022 and managed via an official register, the Registro de Certificados de Ahorro Energético (RCAE, Register of Energy Saving Certificates).

This system, which follows similar principles to the French Certificats d’Économie d’Énergie (CEE), is more centralized and digitized, with strict requirements for electronic proof and qualified time stamping(sello de tiempo calificado). Qualification is governed by the EIDAS standard, proposed by Fidealis.

Time-stamp your CAE file like EECs

Photo, Video , AH: time-stamp and prove now in 3 clicks

A FILE, A CARD

Geolocated time stamping, from photos of and installation files, is specific to each file. Fidealis is adaptable to each type of file, customer or CRM.

EIDAS TIME-STAMPING

The timestamp supplied is generated by our service providers and is guaranteed to comply with EIDAS-qualified timestamps.

EIDAS TIME-STAMPING + GEOLOCATION

FIDEALIS is the publisher of , a powerful proprietary solution for proof and digital statement of facts. eIDAS compliant and qualified, you have a forgery-proof digital statement of facts with forgery-proof geolocation.

How do I register and protect my files and installations with Fidealis?

1. Register

I register for free. No payment is required.

2. We guide you

I choose an offer adapted to my needs with an advisor.

3. We protect you

I upload my photos via mobile App. I'm compliant!

1. CAE objectives and principles

The CAE system is based on three fundamental pillars:

Encouraging investment in energy efficiency(eficiencia energética) :

  • A company or individual carrying out an energy-saving project can obtain a CAE.
  • These certificates can be monetized and traded on a regulated market.

Creating a structured market for energy savings:

  • Obligated energy companies(sujetos obligados) must purchase PPAs to meet their legal obligations.
  • This stimulates a government-controlled exchange market.

Supporting the ecological transition(transición energética) :

  • By reducing energy consumption, CAE contributes to Spain’s carbon neutrality objectives

2. How the CAE system works

The CAE allocation and exchange process follows a strict methodology:

1️⃣ Implementation of an energy efficiency measure (medida de eficiencia energética).

2️⃣ Assessment of energy savings :

An energy audit is carried out in accordance with the criteria defined in Real Decreto-ley 18/2022.

3️⃣ CAE generation and registration :

If the action (installation, fitting, etc.) complies, a CAE is issued in electronic format and entered in the Registro de Certificados de Ahorro Energético (RCAE).

4️⃣ Transaction and purchase of CAEs :

Obligated companies (sujetos obligados) purchase these certificates.

5️⃣ Verification and control of evidence :

Authorities carry out compliance checks (control de conformidad), notably via mandatory time-stamped photo proofs (fotografías con sello de tiempo). The Fidealis solution provides individually time-stamped photos, with their signature verifiable at the click of a button.


3. Comparison with the French CEE system

CriteriaSpain(CAE)France(CEE)
Certification modeCentralized register(RCAE)Standardized sheets
Proof of installationMandatory(fotografía con sello de tiempo)Documentary check
Actors involvedSubjectos obligados and sujetos delegadosObligés, délégataires et mandataires
Proof verificationQualified time stamping(sello de tiempo calificado)Audits carried out by private firms