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8 projects in Germany8 with viability evidence

maincubes BER02 / mainHub — Nauen campus

Nauen, Berlin region·Germany

Developer maincubes

Under constructionStage source 24 Mar 2026
Published capacity200 MVAPublished claim
Campus substation; not converted into MW or treated as available IT load.

Campus substation; not converted into MW or treated as available IT load.

Capacity source

200 MW import · Announced contracted grid connection
Operator’s August 2025 signed E.DIS connection announcement; supply targeted from 2027. Separate from published 200 MVA substation/design figure; no conversion or energisation assumption.
Published claim

9/10 evidence categories7 sources·2 team entries

Polarise Amberg AI Factory — Wertachtal

Former Wertachtal transmitter, Amberg, Unterallgäu, Bavaria·Germany

Developer Polarise

Stage unconfirmedStage source 13 Mar 2026
Published capacity65 MW unspecifiedPublished claim
Polarise's updated initial campus plan announced on 18 August 2026. It is not verified IT load, utility import entitlement or commissioned capacity.

Polarise's updated initial campus plan announced on 18 August 2026. It is not verified IT load, utility import entitlement or commissioned capacity.

Capacity source

30 MW unspecified · Original initial plan (superseded)
Original 10 March 2026 promoter plan, superseded by the later 65 MW initial plan; not import or operating IT load.
Published claim

120 MW unspecified · Ultimate scalable plan
Promoter's potential ultimate scale inclusive of the initial phase; not additional capacity or secured import.
Published claim

5/10 evidence categories6 sources·1 team entry

Google Hanau campus

Hanau-Wolfgang·Germany

Developer Google; original development by NDC-GARBE, now GARBE.DC

OperatingStage source 6 Oct 2023
Published capacityNot published
6/10 evidence categories9 sources·1 team entry

Digital Realty FRA17

Frankfurt am Main·Germany

Developer Digital Realty

OperatingStage source 23 Jun 2023
Published capacity10.2 MW ITPublished claim
FRA17 design IT capacity across eight data halls; not a utility MVA figure or available headroom.

FRA17 design IT capacity across eight data halls; not a utility MVA figure or available headroom.

8/10 evidence categories5 sources·2 team entries

maincubes BER01 — Go West campus

Berlin·Germany

Developer maincubes

OperatingStage date not published
Published capacity9 MW ITPublished claim
BER01 facility, current operator claim; not utility import entitlement. Earlier design source stated 8.2 MW IT.

BER01 facility, current operator claim; not utility import entitlement. Earlier design source stated 8.2 MW IT.

Capacity source

8.2 MW IT · Earlier design claim
BER01 design reported by project manager in November 2023; current operator page states 9 MW IT. Reconciliation of the design change is not published.
Published claim

6/10 evidence categories8 sources·3 team entries

maincubes FRA03 — Schwalbach

Schwalbach am Taunus, Frankfurt region·Germany

Developer maincubes

OperatingStage date not published
Published capacity16 MW ITPublished claim
Overall FRA03 facility; phase 1 operating, phase 2 scheduled for 2026/27.

Overall FRA03 facility; phase 1 operating, phase 2 scheduled for 2026/27.

5/10 evidence categories3 sources·3 team entries

maincubes FRA04 — Dietzenbach

Dietzenbach, Frankfurt region·Germany

Developer maincubes

In planningStage date not published
Published capacity40 MW ITPublished claim
Proposed full FRA04 development; capacity depends on design.

Proposed full FRA04 development; capacity depends on design.

60 MW import · Acquisition-stage committed power
Operator-stated committed electrical supply when the site was acquired in January 2024; contract details, current energisation and available headroom unverified. Distinct from 40 MW IT design.
Published claim

7/10 evidence categories5 sources·0 team entries
Project intelligence. Capacity claims do not establish available land or spare power.Suggest a project