The label isn’t optional for everyone. That’s the point.
According to Taylor Wessing’s published analysis of the draft, the European Commission has circulated draft Delegated Regulation Ares(2026)3247482, which proposes amending the Energy Efficiency Directive (Directive 2023/1791) to introduce a mandatory energy efficiency and environmental labeling system for qualifying data centers. The instrument would supplement Delegated Regulation (EU) 2024/1364, the existing framework governing data center energy performance metrics.
The threshold matters. According to Taylor Wessing’s analysis of the draft regulation, the mandatory label would apply to facilities expected to exceed 500 kW of total power consumption. Smaller facilities and new data centers would remain under a voluntary scheme. That distinction creates a two-tier structure: large, established infrastructure operators face a hard compliance obligation, while newer or smaller operators have more flexibility, at least under the current draft text.
What the draft proposes
The regulation, as described in Taylor Wessing’s analysis, would establish a Union assessment system paired with an electronic label covering energy efficiency and environmental performance. Taylor Wessing’s analysis characterizes the rise of AI and its associated compute demands as the primary context for the regulation’s focus on larger facilities – though that framing reflects legal interpretation, not language in the regulatory text itself. The draft delegated regulation is the underlying instrument; its precise publication date within the Commission’s review process hasn’t been confirmed from available sources.
EU Data Center Compliance Obligation: Reporting vs. Labeling
Who This Affects
Why this matters for data center operators
The EU has regulated data center energy performance before, the 2023 Energy Efficiency Directive already requires large data centers to report PUE, water usage, and renewable energy share. This draft moves from reporting to labeling. A label is visible, comparative, and attached to a facility’s regulatory identity in ways that internal reporting isn’t. Facilities that can’t demonstrate strong energy performance won’t just file a report, they’ll carry a label that counterparties, tenants, and regulators can see.
The compliance date hasn’t been set. The regulation must complete the Commission’s review process, survive any delegated act scrutiny period, and be published in the Official Journal of the European Union before any enforcement timeline begins. Operators shouldn’t plan around a specific date yet. What they can do now is assess whether their EU-based facilities fall above or below the 500 kW threshold, and begin reviewing their existing energy efficiency documentation against the EED’s current reporting requirements, since the labeling criteria will likely build on the same underlying performance data.
Context
The EU isn’t the first jurisdiction to reach for AI infrastructure through energy regulation. The US has moved through grid pricing and state-level tariffs – Oregon’s Schedule 96 may be the first state-level AI data center tariff, and EU AI Act compliance programs are already consuming operator bandwidth. This draft adds a second, distinct EU compliance track for operators who assumed the AI Act was their only Brussels obligation.
What to Watch
What to watch
The real question is whether the 500 kW threshold survives the formal adoption process unchanged, or gets revised upward under industry pressure, which would narrow the mandatory scope significantly. Monitor the Official Journal and EUR-Lex for the regulation’s progression from draft to delegated act. If the Commission publishes a consultation period, that’s the window for operators to submit technical comments on threshold calibration.
TJS synthesis
EU data center operators have been tracking the AI Act’s high-risk system obligations and the EED’s reporting requirements as separate tracks. This draft regulation suggests Brussels is building a third track: AI infrastructure as an environmental compliance category in its own right, distinct from both AI system regulation and general digital infrastructure policy. Don’t expect that track to stop at labeling. Labeling frameworks in EU law have historically preceded performance minimums, the energy label for appliances didn’t stay voluntary, and the logic for data centers is structurally similar. If this draft reaches adoption, the more consequential question isn’t whether your facility needs a label. It’s what score the label shows.