Conapto expands Stockholm 4 South Data Center with 8 MW extension to meet growing AI and digitalization needs

Stockholm, Sweden – 24 October 2025 – Conapto today announced a major expansion of its Stockholm 4 South data center, increasing its capacity with an additional 8 MW of power from energy company Ellevio. With this increase, the site will scale from 20 MW to 28 MW, strengthening Conapto’s position as a leading provider of sustainable colocation in Stockholm, Sweden.

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 8 MW at Stockholm 4 South is about more than capacity. It’s about ensuring resilience, efficiency and climate-smart operations for the future.

The new power capacity will be ready starting January 1, 2026, giving customers the infrastructure they need to handle the rapidly accelerating demands of digital transformation, cloud growth and AI-driven applications.

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, said Tomas Brunzell, Ellevio Asset Owner.

Conapto’s Stockholm 4 South facility is strategically located with access to robust connectivity and Sweden’s renewable energy resources, making it an attractive hub for international enterprises, hyperscalers and AI-driven organizations. The expansion aligns with Conapto’s sustainability strategy, which includes 100% renewable energy, heat reuse to district heating, grid support to help stabilize the national grid and strong commitments to lowering customers’ environmental footprints.

This latest investment comes at a time when Sweden is establishing itself as one of the most sustainable and future-ready data center markets in Europe.

About Conapto
Conapto offers scalable, secure and sustainable data center colocation for physical hardware as well as market-leading access to communication and connectivity to public cloud services. Conapto has four data centers and its headquarters in Stockholm. Learn more at www.conapto.com.

About Ellevio
Ellevio is one of Sweden’s leading energy companies, enabling the transition to a low carbon economy. We distribute electricity to almost one million customers and provide energy solutions across Sweden. We enable the electrification of industry and transportation through a modern, reliable grid and major investments in the energy system. Ellevio has about 800 employees and, together with partners, provides work for more than 4,000 people. The company is owned by pension fund managers AMF, Folksam, OMERS Infrastructure and the Third Swedish National Pension Fund (AP3).