DayOne Data Centers, a Singapore-based developer, has committed EUR 1.2 billion ($1.31 billion) to build a hyperscale data center campus in Lahti, Finland. The project, located on a 98,901-square-meter former industrial site in the Kiveriö neighborhood, will feature up to 128MW of IT load, beginning with a 50MW building. Demolition begins in Q3 2025, with operations scheduled for 2027. DayOne is currently negotiating with potential tenants.
The Lahti facility will pursue LEED Gold certification and leverage Finland’s cool climate for free cooling. A power agreement with Lahti Energy supports integration into the local grid and plans for waste heat reuse in the city’s district heating system. The design eliminates freshwater cooling, relying instead on air-cooled chiller technology. At peak, the project will employ 1,000 construction workers and create 100 permanent skilled jobs.
DayOne signed a Growth Partnership Agreement with the City of Lahti, Lahti Energy, LADEC, and LUT Universities. This includes a EUR 2.5 million investment in local academic programs, joint R&D, and integration of Finnish firms into the project’s development. DayOne already has a joint investment in Kouvola with Hyperco and operates in Singapore, Malaysia, Indonesia, Thailand, Hong Kong, Tokyo, and Finland.
• EUR 1.2 billion ($1.31 billion) total investment in Lahti hyperscale project
• 98,901 m² site with potential 128MW IT load; first 50MW building by 2027
• LEED Gold design, free cooling from local climate, no freshwater use
• Agreement with Lahti Energy for power supply and waste heat recovery
• 1,000 construction jobs and 100 permanent skilled roles expected
• EUR 2.5 million committed to LUT Universities for ICT education and R&D
“Finland is an ideal strategic choice for our European growth,” said Jamie Khoo, CEO of DayOne. “With its reliable energy infrastructure, renewable energy leadership, and highly skilled workforce, Finland offers unique advantages that align with our commitment to sustainable digital infrastructure.”
🌐 Analysis: DayOne’s Lahti project underscores the shift of hyperscale investments into Nordic markets, where abundant renewable energy, stable conditions, and favorable cooling climates provide long-term sustainability advantages. The partnership model with city government and local universities mirrors similar frameworks seen in other Nordic data center projects by Microsoft and Google. For DayOne, backed by global investors such as SoftBank Vision Fund and Coatue, the project expands its European footprint and strengthens competition with other Asia-based players seeking to anchor operations in Europe.
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