Why it matters
The strategic read
Adds a Europe-sovereign AI infrastructure receipt with land reuse, powered-campus development, liquid cooling and long-term operations bundled into one primary-source commitment. Submer is moving beyond immersion-cooling equipment into full-stack AI infrastructure through Rubix, using a former industrial site in Catalonia to package land, power, cooling, buildings and operations for a long-term tenant. The announcement is light on MW and tenant identity, but the EUR1B+ investment amount, AI-specific use case and waterless liquid-cooling design clear the Deal Room threshold.
Source-supported terms
What was disclosed
- 01
Submer Group announced on July 11, 2026 that it will invest more than EUR1B in the former Ercros plant in Flix, Catalonia.
- 02
Submer said the project will develop a next-generation, sustainable artificial-intelligence data center.
- 03
The facility is intended to provide AI compute infrastructure including power, land, cooling and buildings required to run next-generation IT applications at scale.
- 04
Submer said the project is positioned to meet requirements for European sovereign AI infrastructure and strengthen Catalonia's digital economy.
- 05
The facility will be developed and operated by Rubix Data Centers, a Submer Group company focused on AI data-center development and operation.
- 06
Rubix will use a develop-and-operate model in which the facility is built and then run to agreed service levels for a third-party long-term tenant.
- 07
Submer said the data center is designed with the latest energy-efficient liquid-cooling technology and will use no water during operations.
- 08
The project is planned in two phases.
- 09
On completion, Submer expects the project to provide up to 150 permanent jobs across operations and maintenance, critical-facilities engineering, facilities management, security, site services and operator support.
- 10
The project was announced at an event led by the President of the Government of Catalonia, Salvador Illa, and supported by the Government of Catalonia's Department of Business and Labor.
- 11
Submer said the Flix project is part of a broader group strategy spanning land and power to cloud and edge.
- 12
Submer said the group has deployed more than 500 MW of liquid-cooled infrastructure and holds more than 8 GW of powered land across the Americas, EMEA and APAC.
Disclosure boundary
What is known—and what is not
Primary Submer company announcement. Public materials disclose the EUR1B+ investment commitment, Flix / former Ercros site, AI data-center purpose, Rubix develop-and-operate model, third-party long-term tenant framing, two-phase development plan, waterless liquid-cooling design, Catalonia government involvement, expected permanent job count, and Submer Group / Rubix strategic context. Public materials do not disclose the tenant name, MW / MVA capacity, final land size, project financing stack, power-supply agreement, grid interconnection status, phase schedule, construction or EPC contractors, equipment vendors, tax incentives, service-level terms, data-hall specifications, water permits, customer remedies, termination rights, or whether the full EUR1B+ commitment is contractually committed today.