Latest verified market update: 5 September 2026.

The project tracker below is now paired with a market-level evidence layer. Commercial market estimates use different definitions, so GBR keeps each provider's figure separate rather than manufacturing a blended capacity total.

Frankfurt and German data-centre indicators verified 5 September 2026
IndicatorLatest figureTreatmentSource
Frankfurt inventory1,222.5MW in Q1 2026CBRE inventory methodology. Not merged with JLL's market-size estimate.CBRE
Frankfurt inventory growth23% year on yearMarket growth indicator under CBRE methodology.CBRE
Frankfurt vacancyApprox. 5%Evidence of tight immediately available capacity.CBRE
Frankfurt market sizeApprox. 970MWJLL methodology. Kept separate from CBRE inventory.JLL
Distance of planned European hyperscale projects from major hubsApprox. 175km average for 2026-2028 projectsCompared with about 46km for projects completed in 2022-2025.JLL
German operating-data layerFederal RZReg registerUsed as a first-party reference for facility reporting, statistics and geographic coverage as the register matures.BMWE RZReg

Project-level MW, MVA, investment values and long-term campus potential remain separate fields. Planned capacity is never counted as operating capacity.

German Technology Review · Original data

German Data Centre Tracker: 18 Major AI, Cloud and Hyperscale Projects

A project-stage tracker of major German data-centre developments, separating current capacity, first phases, long-term campus potential and projects still in planning.

Last reviewed: 2 September 2026. Values remain in their disclosed units. Missing capacity, spend or timing is not estimated. Full methodology. Research maintained by Lukas Schneider, Automotive & Manufacturing Editor.

Germany's data-centre buildout now spans Frankfurt, Berlin-Brandenburg, northern Germany and North Rhine-Westphalia. The market is being pulled by conventional cloud demand, AI workloads, sovereign-cloud requirements and the search for large power connections outside the most constrained Frankfurt locations.

This tracker does not add MVA, MW, programme investment and long-term campus potential into one headline total. Those numbers describe different things and remain attached to the project and stage in which they were disclosed.

German Data Centre Tracker: 18 Major AI, Cloud and Hyperscale Projects
Operator / projectLocationDisclosed scaleStage at review datePrimary source
Schwarz Group / Schwarz Digits campusNear Rostock, Mecklenburg-Western PomeraniaUp to €5.6bn through 2033; 240MW initial phase; long-term potential up to 1GW by 2045Announced; construction scheduled from 2027Source
Google Hanau expansionHanau, HesseSite MW not separately disclosed; part of Google's €5.5bn Germany investment programme through 2029Existing campus operating; additional expansion broke ground in 2026Source
Google DietzenbachDietzenbach, HesseSite MW not disclosed; included in Google's €5.5bn Germany programme through 2029New data centre in developmentSource
AWS European Sovereign CloudBrandenburgAbout €7.8bn planned long-term investment in German sovereign-cloud infrastructureRegion launched January 2026; physical infrastructure continues to expandSource
Microsoft GrevenbroichGrevenbroich, North Rhine-WestphaliaSite cost and MW not disclosedConditional land purchase signed; project subject to planningSource
Green Rocks MainzMainz / Frankfurt region54MW with expansion potential to 80MWFirst building scheduled for completion around end-2026Source
CloudHQ Campus HöchstFrankfurt-Höchst276MWFirst section targeted for 2027Source
CyrusOne FRA7Frankfurt region81MW with expansion potential to 126MWFirst phase referenced for Q2 2026Source
maincubes FRA04Frankfurt40MWDevelopment programme; ready-for-service target Q1 2029Source
Digitalpark Fechenheim FRA20Frankfurt-Fechenheim16MW first development; site expansion potential up to 200MWFirst expansion stage referenced for spring 2027Source
CyrusOne FRA5 HanauHanau, Hesse54MWConstruction start referenced for 2026Source
DATA4 mega campusFrankfurt region180MVA disclosedConstruction programme begun from 2025Source
Frank CubeFrankfurt region200MWCompletion target referenced for 2028Source
Gießen KatzenfeldGießen, Hesse65MWDevelopment project with 2030 completion referenceSource
FIL Bros BergheimBergheim near Cologne30MVACompletion referenced for 2026Source
Wesseling-Urfeld data-centre projectWesseling, North Rhine-WestphaliaMore than 10MVAConstruction start referenced for 2027Source
Blackstone hyperscale campusLippe region, North Rhine-Westphalia200MWLong-term development; completion referenced for early 2030sSource
maincubes Berlin mainHubBerlin144-186MW disclosed design range on operator project page; platform financing describes a 200MW Berlin campusIn development; ready-for-service target Q1 2028 depending on designSource

Methodology

Projects are included where an operator, public authority or high-quality market source identifies a German location and material data-centre development. PwC's German data-centre project overview is used for a number of Frankfurt and regional projects, while operator or public-sector sources are preferred where available.

Operating, expansion, development, planning and long-term campus potential are separate stages. Where capacity is disclosed in MVA rather than MW, the original unit is retained instead of applying an assumed power factor.

These dataset-specific rules operate under the publication's research methodology, including its source hierarchy, refresh policy and treatment of missing values.

How to cite this dataset

Use the dataset title, publication and review date. Project and company status can change, so citations should preserve the review date rather than describing the table as permanently current.

Reuse and attribution

Journalists, researchers and analysts may quote figures with attribution to German Business Review and the dataset review date. For substantial republication, chart reuse or data licensing, use the publication contact details.

German Data Centre Tracker 2026 | German Business Review