NEW CATALOG OF STANDARDIZED SHEETS FOR THE CAEs SYSTEM AND THE KEYTER PRODUCT PROPOSAL
On July 18, the Official State Gazette published, through a ministerial resolution, the update of Annex I of Order TED/845/2023, of July 18, which approves the catalog of standardized energy efficiency measures. This long-awaited publication provides a new boost to the Energy Savings Certificates (CAEs) system, which was launched in Spain at the beginning of 2023.
This system allows investors in energy efficiency actions to sell their savings in a new energy savings trading market. It was implemented to stimulate investment in energy efficiency improvements across various sectors, including transportation, industry, the tertiary sector, and residential applications. With this new publication, not only have new standardized sheets been incorporated and existing ones expanded, but new productive sectors, such as agriculture and livestock, have also been included.
In the field of HVAC and refrigeration, the expansion and update of the standardized sheets have been significant. In addition to the 52 existing sheets, new savings measures have been incorporated, including hybrid heat pump and boiler systems, efficiency improvements in swimming pool heating, and the utilization of recovered heat from refrigeration system compressors.
Furthermore, calculation accuracy has been significantly improved. Initially, the goal was to ensure that the sheets were simple to interpret and apply. While precision has now been enhanced, the methodology for calculating savings has also become more complex to ensure the results more accurately reflect real-world conditions. One example of this change (though not applicable to all cases) is referencing savings to the building’s energy demand as indicated in the energy efficiency certificate, rather than simply multiplying installed power by the number of operational hours. The previous methodology was straightforward, but it presented challenges in justifying the actual usage hours of the existing installation—a value that varies greatly depending on user habits and the climatic zone in question.
Another major change in this update is the inclusion of heat recovery systems in various forms. Whether through direct methods or mechanical systems, recovered heat used in other applications can often yield higher savings than efficiency improvements alone. It goes without saying that in such cases, the principle of “demand dictates recovery” must always be applied—there is no point in recovering more heat than the actual thermal demand requires. However, a drawback of this update is that it does not explicitly allow heat recovery to be included within a single standardized action. The IND290 sheet refers to the incorporation of heat recovery devices in existing machinery, which excludes the possibility of incentivizing heat recovery when replacing old machines with new ones that integrate these recovery components. It will be up to the system’s stakeholders to determine whether both sheets can be applied within a single action, where efficiency improvements to the existing installation are combined with heat recovery from the exhaust gases of the new equipment.
At KEYTER, the newly released KEYTER product catalog allows for their integration within various energy-saving opportunities under the CAEs system. The product range using R290 refrigerant, led by the ZIRAN and NESEA models, applies to all sheets related to boiler replacements in the industrial, tertiary, and residential sectors. In these cases, beyond improving production system efficiency, they also contribute to one of the European Union’s primary goals: decarbonization. Additionally, in the industrial sector, high-capacity models using low-GWP refrigerants, such as the Pangea and Oneida models, align not only with future conditions outlined in the F-Gas Regulation, but also with the extraordinary incentive applicable to process chiller sheets for industrial applications.
More articles
Interested in other (technical) knowledge articles? Keep yourself up to date and read them all
