October 24， 2025
Nordic data center operator Conapto has unveiled plans for a significant 8-megawatt (MW) expansion of its Stockholm 4 South facility, the company announced this week. The additional capacity, secured through a new power agreement with Swedish energy company Ellevio, will increase the site's total IT load to 28MW.
Scheduled to be ready for service from January 2026, the expansion is a direct response to the growing demands of digitalization and artificial intelligence. The new power will bolster the infrastructure required to support these evolving technologies.
“Digitalization and AI are changing the way data is used around the world, and this expansion ensures our customers have the reliable and sustainable infrastructure to grow,” said Håkan Björklund, CEO of Conapto. “Adding 8MW at Stockholm 4 South is about more than capacity. It’s about ensuring resilience, efficiency, and climate-smart operations for the future.”
The Stockholm 4 data center campus, which broke ground in October 2022, launched its initial phase last year. The site was originally planned to offer 24MW at full build-out, a target now being exceeded with this latest development.
Echoing the strategic importance of the project, Tomas Brunzell of Ellevio stated, “Expanding the capacity of Conapto’s data center is not just a technical step; it’s a critical aspect of securing a sustainable future. The AI innovations and digital services shaping our lives depend on the electrified infrastructure that both Conapto and Ellevio deliver. This expansion marks a milestone in our shared mission.”
Conapto's history dates back to 1982 when it was founded as Backupcentralen. After being acquired by Sungard Availability Services in 2002, the Swedish operations were later sold to Segulah Fund V in 2018, which re-established the business as Conapto. The company was subsequently acquired by the European investment fund Marguerite in 2021.
Ellevio is owned by a consortium of pension fund managers, including AMF, Folksam, OMERS Infrastructure, and the Third Swedish National Pension Fund (AP3).
SOURCE DCD
