A large-scale technology and energy development is taking shape in central Croatia, where Pantheon Atlas has presented plans for a major artificial intelligence campus fully powered by renewable energy sources.
The proposed project, located in Topusko, is designed as an integrated facility combining advanced data infrastructure with clean electricity generation. It includes a planned 500 MW solar power plant and a large-scale battery storage system with a capacity of 2,000 MW and 8,000 MWh, which will directly supply electricity to the campus. Portugal-based company Greenvolt International Power has already signed a letter of intent to support the development of on-site energy solutions.
In addition to the core campus, the project includes significant upgrades to the regional power network. Plans involve the construction of four 400 kV transmission lines, which would enable the integration of up to 5.2 GW of additional renewable capacity into Croatia’s electricity system, substantially increasing the country’s ability to absorb and distribute clean energy.
The main data center complex is expected to reach 1 GW of installed capacity, with around 800 MW dedicated to artificial intelligence computing workloads. The site will initially cover more than 125 hectares, with the possibility of expansion to approximately 180 hectares depending on future demand.
Construction of the first phase, valued at around €12 billion, is scheduled to begin in early 2027, with commissioning planned for early 2029. Over the long term, total investment could exceed €50 billion, as additional hyperscale tenants expand their operations within the facility.
The project is also expected to generate a significant economic impact. Approximately 3,000 jobs are anticipated during the construction phase, followed by around 1,500 permanent positions once the campus becomes operational. Local authorities in Sisak-Moslavina County have already expressed support through a formal cooperation agreement aimed at facilitating project development.
