CyrusOne FRA 4
Frankfurt am Main, Hessen, Germany
Source: OpenStreetMap
CyrusOne FRA 4 is a mapped data center in Hessen, Germany, operated by CyrusOne LLC. DataCentersExposed has documented a 34,241 sq ft footprint at this site. It runs on Germany's grid, which was 41% fossil-fuelled at 330 gCO₂e/kWh in 2025 (Ember).
Reporting by Eric Keller · Updated Jun 14, 2026
Most sites are mapped — located but awaiting a second source. How we verify
Dot size = disclosed capacity (MW). Smallest = undisclosed, not small.
Overview
source: linkCyrusOne FRA 4 is a mapped data center in Frankfurt am Main, Germany, run by CyrusOne LLC. Its reported footprint is 34,241 square feet. Records identify it as a CyrusOne data center, though no ultimate parent above CyrusOne LLC is listed in the available facts.
Operator chain
- Ultimate parentCyrusOne LLC
- Files asCyrusOne LLC
- This facilityCyrusOne FRA 4
The grid behind this site
source: Ember · EurostatA large data center in Germany pays 21.56¢/kWh for electricity — a household pays 39.43¢, 45% more than the data center (Eurostat).
National grid context, not this facility's own metering. Full country picture: Germany data centers.
In the news
source: Google News (local + English)- Rechenzentrenausbau auf Kosten der Stromkunden? Das Energieproblem hinter dem KI-HypeAlgorithmWatch· Nov 25, 2025
- Kooperation: Eon und Cyrus One gehen gegen Kapazitätsengpässe vorZFK – Zeitung für kommunale Wirtschaft· Jun 2, 2025
- Cyrusone baut FRA7 - mit AbwärmenutzungDataCenter-Insider· Jul 22, 2024
- Eine Milliarde ins neue Rechenzentrum investiertfnp.de· Jul 21, 2024
- Erster Spatenstich für Rechenzentrum Cyrus One FRA7 in Frankfurtimmobilienmanager· Jul 19, 2024
- Cyrus One baut Mega-Rechenzentrum in Frankfurt-GriesheimHit Radio FFH· Jul 18, 2024