Germany AI campuses: Marienpark and Hanau compared
Research reviewed October 7, 2026. Analyst comparison, not a project-return ranking.
Both campuses have documented construction-stage evidence. Marienpark has a named lender and reported financing facility. Hanau has an official first partial backup-generator authorization record. Neither establishes utilized customer computing or project profits.
| Evidence | VIRTUS Marienpark | Data4 Hanau |
|---|---|---|
| Location | Berlin / Marienpark | Hesse / Hanau-Grossauheim |
| Construction | June 2025 groundbreaking | September 2025 groundbreaking |
| Capital evidence | €210 million lender-reported facility; €900 million company investment plan | More than €2 billion company investment plan; campus financing close unverified |
| Capacity | 57.6 MW lender full-buildout IT figure versus 62.6 MW current English operator page | 180 MW company reserve versus 180 MVA city connection assumption; different measures |
| Government evidence | Project-specific permit identifiers not established | First partial backup-generator authorization decision June 17, 2026; full decision inaccessible |
| Delivery | 2027 expected in April 2026 specialist reporting; elapsed Q3 2026 target is not completion | Current commissioning date not established; historical 2025 target is not operating evidence |
| Next evidence | Customer leases, firm electricity terms, commissioning and capacity reconciliation | Full permit conditions, electrical delivery, first customer service and financing |
Investor interpretation
A reported credit facility does not automatically make Marienpark the better investment. A partial permit does not make Hanau fully ready for service. The relevant question is which entity bears contractual costs and receives cash flows. No utilization, pricing, margin or project profit is assumed.
Source basis
The full profiles retain six and seven audited source documents respectively, including exact claim support and publication, event and review dates. This comparison introduces no additional capacity or profit assumptions.