Green Mountain AI Data Center (Rjukan)

Green Mountain operates a high-security AI and HPC campus inside a former NATO facility in Rjukan, Norway. The modular halls are built in 2 megawatt blocks that scale to roughly 50 megawatts of IT load, all powered by nearby hydroelectric stations. The site delivers Tier III certified colocation with diverse fiber connectivity, chilled-water and liquid-ready cooling that averages a ~1.1 PUE, and heat reuse projects such as routing server waste heat to a neighboring fish farm. Hewlett Packard Enterprise and other clients deploy GPU-dense supercomputers here to tap abundant renewable energy for large-scale AI training and scientific workloads.