¿Qué es el CAE? Como puedes monetizar tu eficiencia

What is CAE and how can you benefit?

The Energy Saving Certificates (CAE), also known as “white certificates”, are official documents that prove a real reduction in energy consumption (mainly in kWh of final energy) after the installation of efficient systems or improvements. This mechanism, based on the National System of Energy Efficiency Obligations (SNOEE), allows us to monetize the savings generated and sell them to large energy companies that are required by law to reduce their energy footprint.

In other words, if you improve the energy efficiency of your home or premises, you can obtain an economic income from the savings generated.

Types of projects and how to take advantage of them

standardized projects

Standardized projects use official technical data sheets with predefined methodologies. This allows you to calculate the savings and validate the project more quickly. Currently, there are more than 50 cards available and constantly updated covering a wide range of actions.

Examples of actions that generate CAE

  • Replacing boilers with aerothermal heat pumps.
  • Improved thermal insulation.
  • Replacement of lighting systems with LED technology.
  • Renovation of air conditioning or appliances by efficient models.

Aerothermal and CAE: a winning combination

Aerothermal is positioned as one of the most efficient technologies, with a performance that can multiply the energy consumed by four. By replacing polluting systems (such as gas or diesel boilers) with aerothermal, significant savings are generated that can be converted into income through the sale of CAE. This is a double benefit for investment in efficiency. For more official information on the SNOEE, please refer to the IDAE (Institute for Diversification and Saving of Energy).

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How much can I earn with a CAE?

As a guide, the current market values of the CAE range between €115 and €140 per MWh saved. Many installations can recover between €2,000 and €2,500 through these certificates within an average period of three months, without counting European aid. However, this value is not fixed and depends on several project-specific factors.


The value of CAE depends on:

  • What system are you replacing (gas boiler, diesel, electrical resistance, etc.).
  • How much did that previous system consume?
  • In what type of space the installation is carried out (housing, hotel, industry…).

Therefore, each case must be analyzed individually. The actual economic return of the project can only be estimated through a detailed analysis. To consult the calculation regulations, visit the portal of **Ecological Transition (Miteco)**.

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The value of **CAE** depends on:

  • What system are you replacing (gas boiler, diesel, electrical resistance, etc.).
  • How much did that previous system consume?
  • In what type of space the installation is carried out (housing, hotel, industry…).

Therefore, each case must be analyzed individually. The actual economic return of the project can only be estimated through a detailed analysis. To consult the calculation regulations, visit the portal of **Ecological Transition (Miteco)**.

Why is it an opportunity for your clients?

  • Immediate return: Lower net investment when obtaining an economic return on the savings generated.
  • Access to more funding: It is compatible with other subsidies and tax deductions.
  • Sustainability and efficiency: direct reduction of CO₂ emissions.
  • Value added to the project: The installation now has a certified energy value (CAE).

How Thermic Comfort can help you

At Thermic Comfort, we accompany you throughout the CAE process:

  1. We evaluate if your facility is eligible to generate CAE.
  2. We install efficient systems such as aerothermal heat pumps.
  3. We manage the request and validation of the certificates.
  4. We help you monetize the savings obtained.
  5. We combine the CAE with other financial aid available so that the return on investment is optimal.

We create sustainable energy solutions for your home

Comfort and energy efficiency should be a right, not a luxury.