In 2025, Naturgy has taken a decisive step to strengthen its position as a reference in the Energy Savings Certificates (CAE) in Spain, managing to double its volume of certificates compared to the previous year. For the energy company this record number “evidences its commitment to the energy transition, decarbonization and the promotion of public-private collaboration, within the framework of progress towards a more sustainable and efficient economy.”
Energy Savings Certificates (CAE) are instruments that certify the reduction of energy consumption through the implementation of efficiency measures in various sectors. Its objective is to encourage energy improvements in homes, businesses and infrastructure, allowing obligated entities—mainly energy marketers and distributors—to comply with the savings requirements imposed by legislation.
CAEs are a key tool to channel investments towards projects that contribute to reducing energy demand, facilitating compliance with the sustainability and competitiveness objectives established by regulations.
The CAE system is regulated by both national legislation and the European directive on energy efficiency, which sets annual consumption reduction goals and promotes the adoption of sustainable technologies. In Spain, the regulations adapt these objectives to the national reality, establishing obligations for agents in the energy sector and promoting the development of innovative initiatives.
Naturgy Commitment
Since the launch of this mechanism in 2023, Naturgy has acquired 1 TWh in energy savings certificates. This figure is equivalent to the annual consumption of 271,000 homes. According to the data provided by the company itself, “more than half of the CAE acquired in 2025 come from its own clients, which demonstrates the effectiveness of its comprehensive energy savings management model.” This approach allows Naturgy to accompany its clients throughout the entire process, from the identification of efficiency opportunities to the technical and documentary management necessary to obtain and settle certificates, providing agility, traceability and added value.
María Higueras, director of the Industrial Market at Naturgyconsiders that “the evolution of the CAE system confirms that it is a key tool to effectively promote energy efficiency in Spain. Our objective is to accompany clients throughout the entire energy saving process, from the identification of opportunities to the complete management of certificates.”
For the energy company’s management, “the fact that more than half of the CAE acquired come from its own clients demonstrates the value of a comprehensive model aimed at generating a real impact.” For Higueras, “at Naturgy we actively participate in the development and consolidation of the CAE system because we believe in its ability to scale energy efficiency and contribute to the decarbonization of demand.”
The catalog of measures implemented by Naturgy for CAE certification covers actions such as the renewal of air conditioning systems with high-efficiency equipment, the installation of LED lighting in buildings and public spaces, the improvement of thermal insulation in homes, and the optimization of industrial processes. These actions generate quantifiable savings in consumption and emissions, contributing to the achievement of national and European decarbonization objectives. In addition, the company has opted for digital solutions to monitor savings, guaranteeing traceability and transparency in the management of CAE.
CAE Route
The success of the CAE system depends largely on the collaboration between public and private entities. For this reason, Naturgy has consolidated alliances with administrations, sector associations and certifying organizations to carry out informative tasks that can facilitate access to certificates.
With this informative desire, the CAE Route was born, promoted by the National Association of Energy Efficiency Companies (A3E), which this year celebrates its third edition, with the sponsorship of Naturgy and which has become a reference for the sector, promoting the replicability of good practices and the dissemination of technical knowledge on energy efficiency.
This cooperation encourages the participation of various actors, from small companies to large industries, and ensures the integration of sustainability criteria in economic development.