| Commission Delegated Regulation (EU) 2024/1364: common EU data-centre rating scheme (phase 1) Mandates reporting of installed IT power, energy, PUE, ERF/waste-heat, WUE and renewable share via the European DC database; first round 15 Sep 2024, then annual. Fixes the exact KPIs and data a ≥500 kW site must submit to the European database each year (first round 15 Sep 2024). It sets no performance threshold. | regulation · energy efficiency | In force | 2024 | All selected EU countries | source |
| Energy Efficiency Directive (EU) 2023/1791: data centre monitoring & reporting (Art. 12) DCs >=500 kW must annually report energy, power/water use, PUE, waste-heat reuse and renewable share. In force 10 Oct 2023; transposition by 11 Oct 2025. Sites with ≥500 kW of installed IT power must report energy use, PUE, water, waste-heat reuse and renewable share every year to the European data-centre database. A reporting duty, with no EU-level PUE ceiling. | directive · energy efficiency | In force | 2023 | All selected EU countries | source |
| Ecodesign Regulation (EU) 2019/424: servers & data storage Minimum PSU efficiency/power factor, idle-power limits, active-state efficiency, plus material-efficiency and info requirements (secure erase, firmware updates, dismantling). Applies to the servers and storage products installed, not to the building: equipment sold in the EU must meet PSU-efficiency, idle-power and material-efficiency requirements. | ecodesign · energy efficiency | In force | 2019 | All selected EU countries | source |
| Climate Neutral Data Centre Pact (CNDCP) Targets: PUE 1.3 (cool)/1.4 (warm) by 2025/2030; 75% renewable/CFE by 2025 & 100% by 2030; WUE and heat-reuse assessment; server circularity. Voluntary: binds only operators that sign it to PUE (1.3/1.4), renewable-power, water and heat-reuse targets. No legal obligation on non-signatories. | self-regulatory · energy efficiency | Voluntary commitment | 2021 | All selected EU countries | source |
| F-Gas Regulation (EU) 2024/573 HFC quota phase-down, bans/use-restrictions on high-GWP F-gases in refrigeration/AC, leak checks, recovery and reporting, pushing DCs to low-GWP/natural refrigerants. Phases down high-GWP refrigerants used in cooling. Drives chiller/refrigerant choices and retrofit of existing plant. | regulation · refrigerants | In force | 2024 | All selected EU countries | source |
| Renewable Energy Directive III (RED III) 2023/2413 Higher renewable shares, faster permitting, heating & cooling sector targets and district-heating integration that can value DC waste heat. Sets binding national renewable targets for member states, not duties on an individual site; indirectly eases PPAs, permitting and district-heating outlets for waste heat. | directive · renewable | In force | 2023 | All selected EU countries | source |
| EU Taxonomy Regulation (EU) 2020/852 CSRD companies report Taxonomy-aligned turnover/capex/opex; DC alignment hinges on energy-efficiency criteria (EU Code of Conduct/CEN-CENELEC). No direct duty on the site: operators that report under CSRD disclose how much of their activity is taxonomy-aligned, which for data centres hinges on following the EU Code of Conduct on data-centre energy efficiency. Matters mainly for green financing. | regulation · sustainability reporting | In force | 2020 | All selected EU countries | source |
| Corporate Sustainability Reporting Directive (CSRD) 2022/2464 Mandatory assured disclosure of climate, energy, water, emissions, resource-use and governance; scope narrowed by 2025 Omnibus/'Stop-the-clock'. Requires the operator to disclose energy / water / carbon data. A compliance and transparency burden rather than an operating limit. | reporting · sustainability reporting | Phased | 2024 | All selected EU countries | source |