According to the Energy Efficiency Directive (EED 2023/1791), energy audits are mandatory for large energy consumers—companies with annual primary energy consumption exceeding 10 TJ (2.78 GWh). For data centers specifically, these audits must be conducted in accordance with the EN 50600 standard, which applies to all facilities exceeding the aforementioned annual consumption threshold.

With over 30 years of experience, ENEL PS has developed deep expertise in energy performance assessment—including the specific technical and operational requirements of data center infrastructure. Drawing on this knowledge, we are fully capable of conducting energy audits in accordance with EN 50600.

Energy audits are an important step toward the systematic improvement of energy efficiency (EE) in data centers. Under the EED, energy audits must be completed by 2026.

We would like to take this opportunity to invite all data centers to undergo an energy audit, regardless of their annual energy consumption. An energy audit is not a one-time exercise—it is repeated periodically when new energy efficiency measures need to be identified, including projected savings from the implementation of energy efficiency measures, required investment, and expected payback periods.

In addition to being a legal requirement, energy audits provide a clear overview of current energy consumption, identify opportunities for energy savings and CO₂ reduction, and lay a solid foundation for the implementation of an ISO 50001 energy management system.

Starting in 2027, energy management systems must be implemented for large consumers with annual energy consumption exceeding 85 TJ (23.6 GWh).