STACKIT Lubbenau AI Data Center

Also known as Schwarz Digits Lubbenau data center; STACKIT fifth data center

Operated by Schwarz Digits at Lubbenau Site (Schwarz Digits) .

Phase 1 seed dataset, compiled by hand. These rows were built from public operator, laboratory and vendor sources. A mechanical second-reader pass has since fetched every cited source: 1092 of 1153 systems have a readable citation that names them, and 40 are genuinely weakly sourced. Every claim carries its source and a confidence tier. Treat anything below verified as a lead, not a citation.

Measured performance

Rmax: -
Rpeak: -
Rmax ÷ Rpeak: -
Cores: -
Power: -
Per watt: - GF/W

Figures are as last publicly reported for the configuration described below, not a live measurement. Where a system was upgraded in place, the post-upgrade configuration is shown and the earlier one appears in the timeline.

What this machine is made of

One row per supplier relationship. “Supplier at build” is the company that shipped the part at the time; where that company has since been acquired, the parent it rolls up to today is shown beside it. That distinction is what makes ticker-level aggregation possible across a thirty-year dataset.

Role	Part	Supplier at build	Quantity	Confidence	Source
Integrator	- Schwarz Digits builds the 200 MW data center for up to 100,000 GPUs, operated by STACKIT	Schwarz Digits	-	Reported	schwarz-digits.de datacenter-insider.de
Cooling	- Direct liquid cooling with high flow temperatures and waste heat to district heating from 2028	Schwarz Digits	-	Reported	datacenter-insider.de schwarz-digits.de

AI datacenter metrics

Figures beyond an accelerator count, each with who stated it. What can and cannot be compared across AI datacenters.

Metric	Value	As of	Basis	Note	Source
Accelerators	100,000 accelerators	2025-11	Design target	Design ceiling: the modular data center can take up to 100,000 GPUs in future; vendor not named.	schwarz-digits.de datacenter-insider.de
Facility power	200 MW	2025-11	Design target	Connected load of about 200 MW at the Lubbenau site.	schwarz-digits.de datacenter-insider.de

The read

Schwarz Digits' 11 billion euro AI data center on the 13-hectare site of a former power plant in Lubbenau, Brandenburg, with groundbreaking on 18 November 2025. Schwarz Digits states a connected load of about 200 MW and a modular design that can take up to 100,000 GPUs, used mainly for AI inference and training, with direct liquid cooling and waste heat for district heating from 2028; datacenter-insider reports the first phase of three modules is due by the end of 2027. STACKIT, the Schwarz Group cloud, will operate it as its fifth data center. No GPU vendor is named, the 100,000 figure is a design ceiling, and the second source is trade press repeating the same announcement.

Timeline

2025-11 Announced source

Site & facility

Lubbenau Site (Schwarz Digits)

Location: Lubbenau, Brandenburg, Germany
Cooling: Direct liquid cooling and free cooling

schwarz-digits.de datacenter-insider.de

Change history

2026-10-04 Added STACKIT Lubbenau AI Data Center (Schwarz Digits)

Source check

We fetched this system's own citations and recorded whether each page actually mentions it. This is a corroboration signal, not a fact check, and it is published so you can see how well the sourcing holds up rather than take it on trust.

Cited source	Result	Found on the page
schwarz-digits.de	names system only	-
datacenter-insider.de	names system only	-

Checked 2026-10-09 by pnpm verify. Re-run it and the table changes with the web.