Summary Under the proposed Cloud and AI Development Act (CADA), Member States are strictly required to mandate specific sustainability metrics for data centres located in designated "acceleration zones." As set out in Article 11(1) of the proposal, these metrics are not defined within CADA itself but are exclusively those specified in Annex II, points (a) to (n), of Delegated Regulation (EU) 2024/1364. This legal linkage ensures that data centres benefiting from accelerated permitting must be assessed against the EU's unified rating scheme, covering critical indicators such as Power Usage Effectiveness (PUE), Water Usage Effectiveness (WUE), energy reuse, and the share of renewable energy.

Detail

The Cloud and AI Development Act (CADA), as proposed in COM(2026) 502 final, seeks to address the critical shortage of computing capacity in the EU while preventing environmental degradation. A core mechanism for achieving this balance is the creation of "data centre acceleration zones"β€”geographic areas where permitting is streamlined and infrastructure planning is prioritised. However, the proposal explicitly conditions this acceleration on rigorous environmental performance.

The Legal Mandate: Article 11(1)

The definitive rule governing sustainability metrics in these zones is found in Article 11(1) of the CADA proposal. The text is precise and leaves no room for national deviation regarding the selection of metrics:

"When setting sustainability requirements for data centres deployed in acceleration zones, Member States shall use the key performance indicators specified in Delegated Regulation (EU) 2024/1364 pursuant to Directive (EU) 2023/1791 under Annex II, from (a) to (n)."

This provision serves two critical functions in the proposed regulatory architecture:

  1. Harmonisation of Metrics: It removes the discretion of Member States to invent their own KPIs or to cherry-pick a subset of indicators that might be easier to achieve. National authorities must apply the full suite of indicators defined at the Union level. This prevents a "race to the bottom" where jurisdictions might compete for investment by lowering environmental standards.
  2. Legal Continuity: It explicitly anchors CADA to the existing framework established by the Energy Efficiency Directive (Directive (EU) 2023/1791) and its implementing act, Delegated Regulation (EU) 2024/1364. This ensures that the "acceleration" of data centre deployment does not create a parallel, lower-standard regulatory regime but rather integrates new capacity into the EU's existing green transition roadmap.

The Specific KPIs: Delegated Regulation (EU) 2024/1364

By referencing Delegated Regulation (EU) 2024/1364, CADA incorporates by reference the technical metrics that will define a data centre's sustainability profile. While CADA does not list these metrics in its own text, the referenced regulation outlines a comprehensive set of KPIs in Annex II, points (a) through (n). For technical leaders, architects, and compliance officers, understanding these specific indicators is essential for project planning and feasibility studies.

The KPIs mandated by this linkage generally fall into the following categories:

1. Energy Efficiency Metrics

  • Power Usage Effectiveness (PUE): This remains the primary industry standard for measuring energy efficiency. It is the ratio of the total amount of power entering a data centre to the power delivered to the IT equipment. A lower PUE indicates higher efficiency. Under the proposed CADA framework, data centres in acceleration zones must be designed and operated to meet specific PUE thresholds derived from the delegated regulation.
  • Data Centre Energy Efficiency Ratio: Often used in conjunction with PUE, this metric provides a broader view of the facility's energy consumption relative to its IT load, ensuring that non-IT overheads are minimised.

2. Water Efficiency Metrics

  • Water Usage Effectiveness (WUE): As water scarcity becomes an increasingly critical constraint for cooling systems, particularly in southern and central Europe, WUE has become a mandatory metric. It measures the volume of water consumed by the data centre relative to the energy delivered to the IT equipment (typically expressed in litres per kilowatt-hour). The proposed CADA framework ensures that acceleration zones do not become hotspots for water stress by enforcing strict WUE limits.

3. Energy Reuse and Integration

  • Energy Reuse Effectiveness (ERE) / Energy Reuse: These metrics track the amount of waste heat recovered from the data centre and reused for other purposes, such as district heating networks, industrial processes, or agricultural applications. This is a pivotal metric for urban data centres and those located near residential or commercial hubs. The proposal aims to transform data centres from energy consumers into energy producers for their local communities.
  • Renewable Energy Share: Indicators measuring the proportion of electricity sourced from renewable energy sources. This aligns the data centre sector with the EU's broader green transition goals and the requirement for climate-neutral infrastructure.

4. Carbon and Environmental Impact

  • Carbon Intensity: Metrics related to the carbon footprint of the energy consumed, often linked to the grid's carbon intensity or the use of green certificates. This ensures that efficiency gains are not offset by a high-carbon energy mix.
  • Embodied Carbon: While the primary focus of the delegated regulation is on operational efficiency, the broader rating scheme also considers the environmental impact of construction and equipment lifecycle, ensuring a holistic approach to sustainability.

5. Operational and Circular Economy Metrics

  • The remaining points in Annex II (a)-(n) of Delegated Regulation (EU) 2024/1364 cover additional aspects such as IT equipment utilisation rates, cooling system efficiency, and metrics related to the circular economy (e.g., e-waste management, reuse of components). These ensure that the data centre is not only efficient in operation but also sustainable in its resource consumption and waste generation.

Why This Matters for Acceleration Zones

The requirement to use these specific KPIs is not merely an administrative formality; it is a condition precedent for benefiting from the accelerated permitting processes outlined in Article 13 of CADA.

Data centre projects deployed in acceleration zones are treated as "strategic projects" within the meaning of the Regulation on speeding-up environmental assessments. This status grants them access to a dedicated toolbox for faster permitting, including aggregated baseline permits and a maximum 12-month permitting timeline. However, this fast-track status is contingent on demonstrating compliance with high environmental standards.

Member States' Obligations: Under Article 10(2)(a), Member States are required to conduct a comprehensive analysis of the energy needs and greenhouse gas emissions impacts of current and future acceleration zones. The KPIs from Delegated Regulation (EU) 2024/1364 provide the quantitative basis for this analysis. If a proposed data centre cannot meet the thresholds associated with these KPIs, it may be excluded from the acceleration zone or denied the streamlined procedures.

Furthermore, Article 11(2) mandates that the allocation and use of resources within acceleration zones must occur on "fair, reasonable and non-discriminatory terms." This prevents speculative reservation of resources and ensures that only projects committed to genuine sustainability and operational efficiency can secure space in these high-priority zones. The KPIs act as the gatekeeper for this access.

What this means for you

For CTOs, data centre architects, infrastructure investors, and SMEs planning to deploy capacity in the EU, the linkage between CADA Article 11 and Delegated Regulation (EU) 2024/1364 has immediate and profound practical implications.

1. Design for Measurability from Day One

You cannot retrofit compliance easily. Your data centre design must include the instrumentation and monitoring systems necessary to accurately measure PUE, WUE, and energy reuse in real-time. This means investing in granular sub-metering for IT equipment, cooling systems, and power distribution units (PDUs). If you cannot prove your KPIs through verifiable data, you cannot prove your compliance with the sustainability requirements of the acceleration zone. The "black box" approach to energy management is no longer viable under the proposed CADA framework.

2. Prioritise Water and Heat Reuse

While PUE has long been the dominant metric in the industry, the explicit inclusion of WUE and energy reuse indicators signals a significant shift in regulatory focus. In regions facing water stress, a high WUE could disqualify a project from acceleration zone benefits, regardless of its PUE. Similarly, designing for heat recovery (e.g., through district heating integration) is no longer just a "green bonus" or a corporate social responsibility initiative; it is a core compliance requirement for accessing the fastest permitting routes.

3. Engage with National Competent Authorities Early

Member States are responsible for designating acceleration zones and setting the specific sustainability requirements based on the EU KPIs. However, the implementation detailsβ€”such as reporting frequency, verification methods, and the specific thresholds applied within the range allowed by the delegated regulationβ€”may vary. Engage with national authorities early to understand how they will interpret and enforce the KPIs from Annex II of Delegated Regulation (EU) 2024/1364. Do not assume that a "one-size-fits-all" approach will apply across all Member States.

4. Impact on SMEs and Startups

For SMEs, the cost of compliance with these rigorous KPIs could initially appear to be a barrier to entry. However, CADA includes specific provisions to support smaller players. Article 12(4) requires single information points to establish dedicated channels for communication with SMEs to provide guidance. Additionally, Article 11(2) ensures that resource allocation is non-discriminatory. Ensure you leverage these resources to navigate the technical requirements and to access potential support measures for sustainable deployment.

5. Strategic Project Designation

If your project aims for "strategic project" status under Article 14, demonstrating strong performance on these KPIs will be a significant advantage. Article 14(1)(b) explicitly lists projects that "include highly sustainable or innovative features" as eligible for designation. Projects that excel in energy reuse, renewable share, and water efficiency are more likely to receive this designation, which can unlock additional support measures, state aid, and access to Union funding.

Common misconceptions

Misconception 1: CADA defines its own unique KPIs. Reality: CADA does not invent new metrics. It explicitly refers to the existing KPIs in Delegated Regulation (EU) 2024/1364. This ensures consistency with the Energy Efficiency Directive and avoids fragmentation of the single market.

Misconception 2: Only PUE matters. Reality: While PUE is important, the regulation requires a holistic view. WUE, energy reuse, and renewable share are equally critical. A data centre with a low PUE but high water consumption or no heat recovery may fail to meet the overall sustainability requirements for an acceleration zone.

Misconception 3: Acceleration zones have lower environmental standards. Reality: The opposite is true. Acceleration zones are designed to speed up deployment while ensuring sustainability. Article 11 explicitly mandates the use of strict EU-wide KPIs to prevent a race to the bottom. Projects in these zones must adhere to the same or higher environmental standards than those outside.

Misconception 4: Member States can choose which KPIs to enforce. Reality: Article 11(1) uses the mandatory language "shall use," indicating that Member States must apply all KPIs specified in Annex II (a)-(n) of the referenced regulation. They cannot selectively ignore metrics that are difficult to measure or that a specific project struggles to meet.

Misconception 5: Compliance is a one-time check. Reality: The KPIs are ongoing operational metrics. Continuous monitoring and reporting are required to maintain compliance with the sustainability requirements of the acceleration zone. Failure to maintain these standards could result in the loss of accelerated status, the withdrawal of strategic project designation, or other penalties under national law.

Related

This is general information about a draft EU regulation, not legal advice.