DayOne has revealed details of its first data center in Spain, a 300MW campus in the Aragon region.

Renewable energy firm Ignis is developing the data center in the municipality of Escatrón, near Zaragoza.

The project, which will cost more than €3 billion ($3.47bn), aims to become one of the largest AI campuses in Southern Europe. It will be operated by DayOne and located on a plot of around 900 hectares.

The development will be geared towards hosting high-density AI and high-performance computing workloads, and designed to scale to 300MW, though the size of the first phase hasn’t been revealed. A timeline for the development has also yet to be announced.

Ignis has experience as an energy developer, and the Aragon region is fast becoming a data center hub thanks to a combination of available land, access to renewable energy, electrical capacity, and plentiful fiber connections.

The announcement reinforces the region's transformation into a hub for artificial intelligence payloads, a segment that demands increasingly larger campuses with high energy and cooling requirements.

DayOne, which spun out of Chinese data center firm GDS in 2025, announced Series C funding of $4.5 billion last week. At the time, it noted Spain as a key market for its future growth but did not identify any sites it intended to develop.

This piece was automatically translated from DCD's Spanish site and edited by a member of DCD's editorial staff.