Energieeffizienz / PUE & Zielwerte
Why important?
Energy-efficient infrastructure (e.g. low PUE) and measurable improvement targets.
How measured?
Scale 0–5 + N/A:
- 0 = No information on energy efficiency/PUE or targets.
- 1 = General statements only ("energy-efficient"), without KPIs/targets.
- 2 = Measures described (e.g. efficient cooling/ISO 50001), but no PUE (value/target).
- 3 = Partial PUE information (e.g. threshold or individual sites), targets/regularity unclear.
- 4 = PUE is published (portfolio/region/site) and/or there are clear PUE targets (incl. updates).
- 5 = PUE is published regularly and traceably (e.g. portfolio/region/site) incl. targets/methodology and progress.
- N/A = Not assessed / no reliable evidence available.
Sources / Evidence
Links are starting points for the assessment (public unless marked otherwise). For RFP/audit purposes, please verify the scope (region/service/operating model).
- https://sustainability.aboutamazon.com/products-services/aws-cloud
- https://www.ionos-group.com/fileadmin/Publications/Berichte/IONOS_Group_SE_Sustainability_Report_2024.pdf
- https://stackit.com/en/learn/knowledge/cloud/sustainability
- https://www.ovhcloud.com/sites/default/files/external_files/kpis_per_dc-fy24.pdf
- https://www.t-cloud-public.com/en/benefits/sustainability
- https://www.oracle.com/cloud/sustainability/
- https://www.plusserver.com/nachhaltigkeit/
- https://upcloud.com/esg-program/
- https://www.exoscale.com/sustainability/
- https://docs.hetzner.com/general/company-and-policy/sustainability-at-hetzner/
- https://www.scaleway.com/en/environmental-leadership/
- https://datacenters.microsoft.com/sustainability/efficiency/
- https://kk.htcm.de/press-releases/noris/nrs1pi969/
- https://www.syseleven.de/ueber-uns/unsere-rechenzentren/
- https://www.bertelsmann.com/news-and-media/news/first-sovereign-cloud-platform-for-the-german-administration-on-the-home-straight.jsp
Validation questions (RFP)
These questions help close evidence gaps or verify claims, including scope.
- Which PUE values (e.g. per ISO/IEC 30134-2) are reported for the relevant data centres/regions (period, methodology)? Are there concrete targets/improvement plans, and how is progress measured (governance/monitoring)? Optional: which WUE values and energy-versus-water trade-off policy exist?
Scores comparison
| Providers | Score | |
|---|---|---|
| AWS European Sovereign Cloud | 5.0 | |
| IONOS Cloud | 5.0 | |
| Scaleway | 5.0 | |
| Microsoft Sovereign Cloud | 5.0 | |
| Infomaniak Public Cloud | 5.0 | PUE < 1.1 (branchenführend). Keine Klimaanlage seit 2013 (Außenluftkühlung). DC D4 (Jan 2025): 100% Wärmerückgewinnung → beheizt 6.000 Haushalte. ISO 50001 (Energiemanagement). Eigene Solaranlagen (Meyer-Burger). |
| OVHcloud Public Cloud (inkl. SecNumCloud) | 4.0 | |
| T Cloud Public | 4.0 | |
| Hetzner Cloud | 4.0 | |
| noris Sovereign Cloud | 4.0 | |
| STACKIT | 3.0 | |
| Exoscale | 3.0 | |
| Delos Cloud | 3.0 | |
| SysEleven OpenStack Cloud | 3.0 | |
| Oracle EU Sovereign Cloud | 2.0 | |
| pluscloud open | 2.0 | |
| UpCloud | 2.0 | |
| Cloud Temple Trusted Cloud | 2.0 | State-of-the-art data centres in FR (stated). No public PUE values or energy efficiency targets documented. |