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.
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.
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 ·
sourceBal §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) ·
sourceEnergiebesparingsplicht – 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 ·
sourceBal §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 ·
sourceGermany8
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 ·
sourceEnEfG §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.
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.
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) ·
sourceEnEfG §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.
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) ·
sourceEnEfG §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.
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) ·
sourceBelgium1
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 ·
sourceUnited 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.
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 ·
sourceData 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) ·
sourceIreland4
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/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 ·
sourceGovernment 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 ·
sourceLarge 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