Stockholm AI Centers Run on 100% Renewable Energy

The world's most powerful AI computers are now running on clean energy in Sweden, and they're helping heat the city at the same time.

CoreWeave and Conapto opened two data center campuses in Stockholm that operate entirely on renewable energy. These aren't ordinary server farms. They house some of the world's most advanced AI computing systems, including NVIDIA's latest Blackwell Architecture, processing the intensive workloads that train and run artificial intelligence models.

The Stockholm 4 South facility is already up and running. Instead of wasting the enormous heat these powerful computers generate, the centers redirect it into Stockholm's district heating network. That means the thermal energy that would normally be vented into the atmosphere now warms homes and buildings across the city.

"Sweden has been central to CoreWeave's European strategy since our first continental investment," says Sachin Jain, the company's Chief Operating Officer. "Conapto's local expertise and sustainable energy profile allows us to provide our customers what they need: urgent high-performance AI compute with the reliability and environmental credentials that enterprise AI deployments demand."

The timing matters. As AI technology rapidly moves from research labs into everyday business use, the computing power required has skyrocketed. Foundation models that power chatbots, image generators, and business tools need massive processing capacity that traditionally comes with a massive carbon footprint.

The Ripple Effect

This Stockholm partnership shows other tech companies a viable path forward. Eight of CoreWeave's European sites now operate on this model, and globally the company manages 49 data centers serving nine of the ten leading AI developers.

Håkan Björklund, CEO of Conapto, emphasizes the broader message. "The partnership demonstrates how AI infrastructure and sustainability can operate together," he says. The heat recovery system alone represents a significant shift in how we can think about technology's environmental impact.

European businesses now have access to the computing power they need for AI without choosing between innovation and sustainability. The facilities can handle continuous processing for commercial AI applications while maintaining environmental standards that matter to both companies and consumers.

Sweden's abundance of renewable energy made it the natural choice for this expansion. The country's infrastructure was already designed to support district heating networks, making the heat recovery integration seamless.

When technology companies prove that growth and environmental responsibility aren't opposing forces, everyone wins.

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