Topics · Compare regulation

Compare data center regulation

Netherlands, Germany, Belgium, United Kingdom and Ireland, measure by measure. EU-wide rules are listed once. National and regional or local rules are shown side by side, each with its status, effective date and source.

MeasuresNetherlandsGermanyBelgiumUnited KingdomIreland
EU-wide / supranational88808
National68134
Regional / local31301
Total171712313
Coverage last reviewed2026-09-242026-09-242026-09-24not yet re-reviewed2026-09-24

Up to 7 countries at a time. A zero means no measure was found in this compilation, not that none exists.

What was checked, per country
  • Netherlands (2026-09-24): Bal, Bkl and Omgevingsregeling read on wetten.overheid.nl (data-centre activity rules, EED disclosure, energy-saving measures list, national hyperscale rule now confirmed in force); Noord-Holland provincial ordinance and 2025–2027 strategy checked. Grid-congestion rules not treated as data-centre-specific.
  • Germany (2026-09-24): Energieeffizienzgesetz read in full (§§11–17); §15–17 added to the existing §11–14 rows. No state (Land) or further municipal rules confirmed beyond Frankfurt; possible 2025/26 EnEfG amendments not checked.
  • Belgium (2026-09-24): Flemish and Walloon EED reporting and the Flemish heat-reuse policy commitment checked on regional government sites; Elia connection slowdown from trade press only (no official Elia/CREG text). Brussels-Capital, binding Flemish VLAREM rules and federal excise not found or not reachable.
  • Ireland (2026-09-24): South Dublin County Development Plan (EDE7) and the 2026 Large Energy User Action Plan checked; CRU decisions already covered. Fingal Development Plan unreachable (403); EPA and An Coimisiún Pleanála not checked.

EU-wide / supranational (shared)

These apply to the selected EU countries (Netherlands, Germany, Belgium and Ireland), not to United Kingdom.

MeasureType · categoryStatusEffectiveApplies toSource
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 efficiencyIn force2024All selected EU countriessource
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 efficiencyIn force2023All selected EU countriessource
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 efficiencyIn force2019All selected EU countriessource
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 efficiencyVoluntary commitment2021All selected EU countriessource
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 · refrigerantsIn force2024All selected EU countriessource
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 · renewableIn force2023All selected EU countriessource
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 reportingIn force2020All selected EU countriessource
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 reportingPhased2024All selected EU countriessource

National

Netherlands6
National spatial rule restricting hyperscale DCs (draft AMvB)
regulationzoningin friction index
In force · effective 2022

Hyperscale DCs (>10 ha, ≥70 MW) only at designated sites (Het Hogeland; Agriport A7 Hollands Kroon); prohibited elsewhere.

Hyperscale sites (>10 ha and ≥70 MW) are banned everywhere in the Netherlands except designated locations in Het Hogeland and Hollands Kroon; municipal environment plans may not allow them elsewhere.

Ministerie van BZK · source
Voorbereidingsbesluit hyperscale datacentra (national moratorium)
moratoriumzoning
Lifted · effective 2022

Ban on permits for hyperscale DC (>10 ha AND ≥70 MW) except Hollands Kroon & Het Hogeland.

Historic: for nine months from 16 Feb 2022 no permits were issued for hyperscale sites (>10 ha and ≥70 MW) outside Hollands Kroon and Het Hogeland. Now lifted; see the national spatial rule.

Ministerie van BZK · source
Heat-reuse and water conditions for data centres
regulationheat reusein friction index
In force · effective 2022

Plan for residual-heat reuse and limit/justify cooling water use as a siting/permit condition.

Typical effect of this kind of measure: Obliges the facility to reuse its waste heat or limit cooling-water use. Shapes site design and can steer siting toward heat-offtake or water-rich locations.

Ministerie van BZK / Provincie Noord-Holland / municipalities · source
Bal §3.7.3 – Data centre as a designated environmentally harmful activity (incl. cooling-water discharge permit >50 MW)
regulationwaterin friction index
In force · effective 2024

Art. 3.235 designation; art. 3.236 permit for cooling-water discharge with heat load >50 MW; art. 3.237 general rules (§4.110 cooling water, §5.4.1 energy saving, §5.4.1a disclosure); art. 3.238 notification ≥4 weeks before start.

Operators must notify the competent authority at least 4 weeks before starting operations, and need an environmental permit to discharge cooling water with a heat load above 50 MW into surface water.

Ministry of Infrastructure and Water Management / competent authority (usually municipality / omgevingsdienst) · source
Energiebesparingsplicht – Recognised Measures List (EML) for data centres (Omgevingsregeling Bijlage VII, category PH)
regulationenergy efficiency
In force · effective 2024

Duty applies to sites using ≥50,000 kWh electricity or ≥25,000 m³ gas-eq/yr; reporting every 4 years. Data-centre measures PH1 (room-cooler setpoint ≥27 °C, the ASHRAE upper limit, with compression or wet cooling; lower allowed with 100% dry free cooling), PH2 (frequency control on room coolers), PH3 (free cooling).

Data centres above the energy-saving-duty thresholds must carry out the listed data-centre measures (e.g. server-room cooling setpoint of at least 27 °C, VSDs on CRAH units, free cooling) or show equivalent savings.

Ministry of Climate and Green Growth / RVO; enforced by omgevingsdiensten · source
Bal §5.4.1a – Public disclosure of data-centre energy efficiency (≥500 kW)
reportingsustainability reporting
In force · effective 2024

Installed IT power ≥500 kW; first publication by 15 Jul 2024, then yearly by 15 May for the previous calendar year (installed power, floor area, energy use, efficiency KPIs, temperature setpoints, renewable share, data traffic and storage). Defence and disaster-relief data centres exempt.

A data centre with at least 500 kW installed IT power must publish its energy-efficiency data every year by 15 May through an electronic facility (first deadline 15 July 2024).

Ministry of Infrastructure and Water Management / RVO · source
Germany8
EnEfG §11: Data-centre PUE limits
regulationenergy efficiency
In force · effective 2023

Existing DCs PUE ≤1.5 from 1 Jul 2027, ≤1.3 from 1 Jul 2030; new-build (from 1 Jul 2026) ≤1.2 within two years.

Typical effect of this kind of measure: Sets efficiency rules a data center must meet, e.g. a PUE ceiling or mandatory KPI reporting. Can force cooling/design changes and rule out inefficient builds.

BMWK / Bundesregierung · source
EnEfG §12: Energy/environmental management systems
regulationenergy efficiency
In force · effective 2023

Implement ISO 50001 or EMAS by mid-2025.

Typical effect of this kind of measure: Sets efficiency rules a data center must meet, e.g. a PUE ceiling or mandatory KPI reporting. Can force cooling/design changes and rule out inefficient builds.

BMWK · source
EnEfG §11: Mandatory waste-heat reuse quotas
regulationheat reusein friction index
Phased · effective 2026

Min reused-energy share for new DCs: ≥10% (from Jul 2026), ≥15% (2027), ≥20% (2028).

Typical effect of this kind of measure: Obliges the facility to reuse its waste heat or limit cooling-water use. Shapes site design and can steer siting toward heat-offtake or water-rich locations.

BMWK · source
EnEfG §13–14: DC energy-efficiency register & reporting
reportingenergy efficiency
In force · effective 2024

Annual reporting of energy, PUE, waste-heat use, renewable share.

Typical effect of this kind of measure: Sets efficiency rules a data center must meet, e.g. a PUE ceiling or mandatory KPI reporting. Can force cooling/design changes and rule out inefficient builds.

Bundesregierung (federal register) · source
EnEfG §11: 100% renewable electricity requirement
targetrenewable
Phased · effective 2024

50% renewable from 1 Jan 2024; 100% from 1 Jan 2027.

Requires a share of renewable / carbon-free electricity. Affects power sourcing, PPAs and run-cost, and can gate approval of new load.

BMWK · source
EnEfG §15 – Energy-use disclosure to colocation customers
reportingsustainability reporting
In force · effective 2024

Applies to data-centre operators serving third parties; yearly per-customer energy statement from 1 Jan 2024.

Colocation/hosting operators must give each customer an annual statement of the energy consumption attributable to them.

Bundestag / BMWK (Energieeffizienzgesetz, BGBl. 2023 I Nr. 309) · source
EnEfG §16 – Duty to avoid and reuse waste heat (companies >2.5 GWh/yr)
regulationheat reusein friction index
In force · effective 2023

Companies whose average final energy use over the last 3 years exceeds 2.5 GWh; excludes installations already covered by BImSchG permits with more specific rules.

A data centre using more than 2.5 GWh/yr must avoid waste heat to the state of the art and reuse it where technically and economically reasonable.

Bundestag / BMWK · source
EnEfG §17 – Waste-heat platform (Plattform für Abwärme) reporting
reportingheat reuse
In force · effective 2023

Companies >2.5 GWh average annual final energy use; annual submission by 31 March; updates when things change; security exceptions apply.

Data centres above 2.5 GWh/yr must report their waste heat to the federal platform every year and answer data requests from heat-network operators.

Bundesstelle für Energieeffizienz (BfEE/BAFA) · source
Belgium1
Elia slowdown and stricter selection of new data-centre transmission connections (proposal)
regulationgrid
Proposed · effective 2025

Temporary slowdown and stricter selection; flexible, temporarily disconnectable connections remain possible. No MW cap, end date or regulatory approval confirmed.

New data-centre connections to the Belgian transmission grid face stricter selection and may only be offered as flexible connections that can be temporarily interrupted.

Elia Transmission Belgium · source
United Kingdom3
AI Growth Zones & planning reform
incentivezoning
Phased · effective 2025

Streamlined planning, grid-connection priority and public support for data centres in designated AI Growth Zones (first at Culham).

Eases siting rather than restricting it: projects inside a designated AI Growth Zone get faster planning and priority grid access.

DSIT / MHCLG · source
Climate Change Agreement (CCA) - CCL discount for data centres
tax relieftax
In force · effective 2014

Up to ~92% discount on the CCL on electricity (and ~86-89% on gas) for data centres meeting agreed energy-efficiency targets.

Typical effect of this kind of measure: Lowers the cost of building or running a data center here (tax breaks, cheaper power, grants). A siting incentive: pulls investment in rather than constraining it.

Environment Agency / DESNZ · source
Data centres designated Critical National Infrastructure (CNI)
designationinfrastructure
In force · effective 2024

Enhanced government protection/coordination and prioritised resilience/incident support for designated data centres.

Brings data centres under government resilience and security coordination as critical infrastructure. It sets no siting, efficiency or data-localisation rule.

Dept for Science, Innovation & Technology (DSIT) · source
Ireland4
CRU new electricity connection policy for data centres (Dec 2025)
regulationgridin friction index
Phased · effective 2026

New DCs must provide on-site generation/storage matching max import demand + market participation, and source ≥80% annual electricity from additional Irish renewables; system operators publish procedures by 31 Mar 2026.

Typical effect of this kind of measure: Controls whether: and how fast: a data center can get grid power. Can delay, cap or block new capacity, and may force on-site generation or demand commitments.

CRU · source
CRU/21/124: DC grid-connection direction (de facto Dublin moratorium)
moratoriumgrid
Lifted · effective 2021

New connections in constrained regions (Dublin) deferred; on-site dispatchable generation/storage + demand flexibility expected.

Typical effect of this kind of measure: Controls whether: and how fast: a data center can get grid power. Can delay, cap or block new capacity, and may force on-site generation or demand commitments.

CRU; EirGrid/ESB Networks · source
Government Statement on the Role of Data Centres
planningotherin friction index
In force · effective 2022

Prioritises DCs demonstrating flexible demand, on-site generation, efficient resource use, decarbonisation.

Signals which projects the state will favour: sites offering flexible demand, on-site generation, efficient resource use and decarbonisation, in locations with grid and renewable capacity.

Dept of Enterprise, Trade and Employment · source
Large Energy User Action Plan (LEAP)
roadmapgrid
In force · effective 2026

17 actions; green energy parks developed privately and possibly state-led; does not stop data centres outside these locations before or after 2030.

Very large projects such as hyperscale data centres are steered toward plan-led 'green energy parks' next to renewable supply (including offshore wind). Development outside these parks remains possible under existing planning rules.

Dept. of Enterprise, Tourism and Employment; Dept. of Climate, Energy and the Environment · source

Regional / local

Netherlands3
Amsterdam & Haarlemmermeer DC establishment policy
Local: Amsterdam & Haarlemmermeerplanningzoningin friction index
In force · effective 2020

New/expanding DCs confined to designated areas; conditions on efficient PUE, renewable electricity, residual-heat use, productive roofs.

Typical effect of this kind of measure: Restricts where data centers may be built. Can bar new sites outright or confine them to designated zones, directly limiting where capacity can land.

Gemeente Amsterdam & Haarlemmermeer / Provincie Noord-Holland · source
Omgevingsverordening NH2022 – data-centre cluster rule
Regional: Noord-Hollandplanningzoningin friction index
In force · effective 2022

Applies to data centres >2,000 m² gross floor area and >5 MVA connection (the strategy notes this 'and' is being changed to 'and/or'); only in the 'datacenter clustering allowed' areas; the guideline cites OVNH2022 art. 6.2.2.6a.

New data centres over 2,000 m² GFA and over 5 MVA are only allowed inside designated clusters in Amsterdam, Haarlemmermeer and Hollands Kroon, with urban-design and image-quality plans and the sustainability conditions applied.

Provincie Noord-Holland · source
Datacenterstrategie Noord-Holland 2025-2027 – no new hyperscale initiatives
Regional: Noord-Hollandmoratoriumzoningin friction index
In force · effective 2025

Period 2025-2027; no new hyperscale initiatives; strategy dated January 2025.

No new hyperscale data-centre initiative will be allowed anywhere in Noord-Holland during 2025-2027, including Hollands Kroon.

Provincie Noord-Holland · source
Germany1
Frankfurt/Hesse municipal DC land-use framework
Local: Frankfurt / FrankfurtRheinMainplanningzoningin friction index
In force · effective 2022

DC siting restricted to designated areas; waste-heat utilisation concept required in approvals.

Typical effect of this kind of measure: Restricts where data centers may be built. Can bar new sites outright or confine them to designated zones, directly limiting where capacity can land.

Stadt Frankfurt / Regionalverband FrankfurtRheinMain · source
Belgium3
Flemish data-centre reporting obligation (Energiedecreet art. 7.8.1)
Regional: Flandersreportingsustainability reporting
In force · effective 2024

≥500 kW installed IT; annual KPIs (energy, power, water, waste heat, renewables, temperature setpoints, traffic) due 15 May for the previous year, first cycle 15 May 2024; defence, police and civil protection exempt.

Flemish data centres with ≥500 kW installed IT power must report energy, water, waste-heat reuse, renewable share and other KPIs via ReportENER by 15 May every year.

Vlaams Energie- en Klimaatagentschap (VEKA) · source
Flemish Energy & Climate policy note 2024-2029 – planned waste-heat study duty for new data centres
Regional: Flandersroadmapheat reuse
Proposed · effective 2024

Policy commitment only; no legal text yet.

Flanders intends to require a study of useful waste-heat valorisation when a new data centre is sited; expect a heat-reuse assessment in future permitting.

Vlaamse Regering – minister for Energy and Climate · source
Walloon data-centre EED reporting procedure (SPW Énergie)
Regional: Walloniareportingsustainability reporting
In force · effective 2024

≥500 kW installed power demand; first report before 15 Sep 2024, then yearly before 15 May.

Walloon data centres with ≥500 kW installed power must report yearly through the European platform by 15 May, with the SPW as competent administration.

SPW Territoire, Logement, Patrimoine, Énergie · source
United Kingdom0

No regional / local measures compiled.

Ireland1
South Dublin County Development Plan 2022-2028 – Policy EDE7 (space-extensive uses incl. data centres)
Local: South Dublin Countyplanningzoningin friction index
In force · effective 2022

EDE7 Obj.1 locate outside the M50 as far as possible; Obj.2 show energy efficiency, maximise on-site renewables toward 100% renewable (else evidence of Irish PPAs), sufficient water/wastewater/electricity capacity, district-heat measures where excess heat is produced, and CNDCP sign-up; Obj.3 biodiversity/landscaping.

Data-centre applications in South Dublin should sit outside the M50 where possible. They must demonstrate renewable supply (on-site generation plus Irish PPAs), grid and water capacity, provision for district heating, and sign-up to the Climate Neutral Data Centre Pact.

South Dublin County Council · source

Research compilation, not legal advice. Re-check each measure's status with the cited authority. Some scope and status labels have been corrected from the source compilation (for example, municipal rules that were tagged national, and voluntary pacts that were shown as in force).