The Renewable Energy of CoreWeave's AI Centres in Stockholm
CoreWeave and Conapto have agreed to co-locate two new data centre campuses in Stockholm.
The arrangement provides AI cloud capacity for European customers and operates on renewable energy sources.
The Stockholm 4 South facility is already operational. CoreWeave Cloud offers compute, networking, storage and software orchestration designed for AI workloads.
Hardware deployment in Sweden
CoreWeave deploys NVIDIA Blackwell Architecture and NVIDIA Vera Rubin Platforms at the Swedish sites. These systems connect via NVIDIA Quantum-X800 InfiniBand to support enterprise processing requirements.
High-density server infrastructure produces thermal output that requires cooling protocols and power provisioning. Conapto provides the physical environment and redundant systems needed to maintain uptime for these clusters.
The partnership addresses demand from European technology firms for infrastructure that handles intensive workloads. AI models moving into commercial production require facilities capable of supporting continuous processing tasks.
"Sweden has been central to CoreWeave's European strategy since our first continental investment," says Sachin Jain, Chief Operating Officer at CoreWeave.
"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."
Renewable energy and heat recovery
The Stockholm campuses operate on renewable energy sources. Conapto redirects thermal energy from compute clusters into municipal infrastructure rather than venting it as waste.
This operational model could reduce the carbon footprint of training and running foundation models. Power availability and sustainability remain concerns for the data centre sector globally.
"We're excited to partner with CoreWeave to support the rapidly growing demand for their AI cloud platform," says Håkan Björklund, Chief Executive Officer at Conapto.
"CoreWeave is at the forefront of AI innovation, and we're proud to provide the resilient, high-density infrastructure needed to power their next phase of growth."
Håkan adds that the partnership demonstrates how AI infrastructure and sustainability can operate together. The heat recovery system feeds directly into Stockholm's district heating network.
Expansion across multiple markets
The Conapto agreement brings CoreWeave's European presence to eight operational sites. According to CoreWeave, the company manages 49 data centres globally as of 31 March 2026.
The real estate portfolio includes more than 1GW of active power and more than 3.5GW of contracted power. This infrastructure supports service delivery to nine of the 10 leading foundation model providers.
CoreWeave validates facility performance through independent testing. The company achieves record-breaking MLPerf benchmark results and maintains a Platinum ranking in SemiAnalysis ClusterMAX 1.0 and 2.0.
Independent inference benchmarking by Artificial Analysis ranks CoreWeave first for inference speed and price-performance on Moonshot AI's Kimi K2.6. The Stockholm deployment provides immediate capacity for developers building AI applications at scale.
