Spain's Aragón region is set to host a large-scale off-grid data center campus, as local engineering firm Krolmap advances plans for a 225MW facility in Belchite that would operate on a self-consumption energy model designed to reduce reliance on the public power grid.
The project, valued at €1.5 billion ($1.68 billion), represents one of the more ambitious attempts in Spain to address a critical bottleneck facing the country's data center buildout: the availability of electrical power. By integrating renewable generation, battery storage, and cogeneration on-site, Krolmap aims to meet the continuous, high-density power demands of modern digital infrastructure without depending solely on grid connections.
The campus would be situated in the La Legua industrial park in Belchite, occupying approximately 25 hectares. According to information published by Heraldo de Aragón, the design comprises six independent buildings supported by an on-site energy system capable of powering the entire facility. The initiative remains in the planning phase, and full details regarding the final architecture, installed generation technologies, storage capacity, and development timeline have not yet been disclosed.
The Belchite proposal runs parallel to another project Krolmap is planning in Villanueva de Gállego, also in Aragón, signaling the company's broader ambitions in the region's digital infrastructure sector. The off-grid approach addresses a constraint that has become increasingly acute across Spain, where grid access in certain areas is limited or delayed. On-site generation shifts the responsibility to the developer to size and operate an energy system capable of sustaining critical loads — a significant operational undertaking, but one that could unlock locations otherwise unsuitable for large-scale data center development.
While the published information does not specify the renewable technologies or storage capacities to be deployed, the project's scale and financial backing underscore growing investor confidence in behind-the-meter energy solutions for data centers across Europe. If realized, the Belchite campus would rank among the larger off-grid digital infrastructure projects on the continent, offering a potential template for developers navigating power-constrained markets.