Nscale, a global AI infrastructure company, with support from Fortum plans to establish a data center in Harjavalta, Finland

April 2, 2026

Nscale, the European based AI infrastructure company, announces interest in building a datacenter in Harjavalta, Finland. The facility is planned for the Sievari industrial area, owned by the Town of Harjavalta. Fortum is supporting the project as site development partner.

The project is inline with Fortum’s strategic priorities to drive electrification in theNordics. Fortum laid the groundwork for this site development in June 2024 by signing a planning reservation agreement with the Town of Harjavalta.

The agreement covered marketing, zoning, and grid connection support for a potential data center site in Sievari and marked the first phase of advancing the area for future investment.

Fortum has now signed a site securing and development agreement (SSDA) with Nscale and will continue the work initiated in 2024. In parallel, Nscale and the Town of Harjavalta have begun the process toward a preliminary land sale of the Sievari site. Under the agreement, Fortum’s role is to support the smooth progress of Nscale’s project development, including grid connection design and permitting.

The total power capacity of the planned data center is to be determined during the next design and permitting phases.

“This cooperation reflects our broader strategy to enable low-carbon growth by providing customers with the right conditions to build scalable, sustainable operations in Finland. These types of projects play a key role in driving electrification and digitalisation in our societies,” Jyrki Holappa, Customer Site Development Director at Fortum states.

“The Nordic market, and Finland specifically, offers unique advantages that align perfectly with our commitment to sustainable, high-density infrastructure,” said Markus Päivinen, Nscale’s Managing Director for Finland and Baltics. “We look forward to contributing to the local economy, collaborating with local energy providers, and delivering cutting-edge compute capacity that will fuel the next generation of digital services in Finland throughout Europe.

“The Town of Harjavalta welcomes Nscale to establish a data center in Harjavalta as part of the expansion of the Sievari Industrial Park. The project is important for the town, as it brings employment to the region and strengthens the local economy both during construction and operation”, says Hannu Kuusela, Mayor of Harjavalta.

Driving decarbonisation in industries and delivering reliable, low-carbon energy are at the core of Fortum’s strategy. Fortum is uniquely positioned to help energy-intensive businesses identify sites quickly and build new, low-emission operations.

 

Further information:

Fortum News Desk, +358 40 198 28, newsdesk@fortum.com

Nscale, press@nscale.com

Fortum 


Fortum is a Nordic energy company. We generate and deliver reliable energy to our customers and the Nordic energy system while at the same time helping industries decarbonise their processes and grow.

Our core operations comprise efficient and best-in-class low-carbon power generation, customer services, and heating and cooling. Fortum’s power generation is already 99% from renewable or nuclear sources with one of the lowest specific CO2-emissions in Europe. We are guided by our ambitious SBTi-validated emission reduction targets on our way towards net-zero by 2040. For our ~4,500 employees, we commit to be a safe and inspiring workplace. Fortum's share is listed on Nasdaq Helsinki. fortum.com


Nscale

Nscale is the global hyperscaler engineered for enterprise-grade AI infrastructure, delivering compute to the generative AI market at scale. Through its fully vertically integrated suite of AI solutions and GW+ greenfield data centers across the globe, Nscale enables customers to run efficient and scalable AI training, fine-tuning, and inferencing workloads.

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