• TikTok now utilises the full initial 90 MW capacity across three buildings at OSL‑Hamar, with expansion potential up to 150 MW.
• The facility exemplifies renewable‑powered, low‑PUE design with potential for heat reuse and community benefits.
What happened：TikTok completes full deployment at Norway’s OSL-Hamar site
Green Mountain’s OSL‑Hamar campus—recently named Capacity‑Media’s “Data Centre of the Month”—now houses three operational buildings, each with 30 MW capacity, fully leased to TikTok under its European data sovereignty scheme, Project Clover. In April 2025, TikTok began operating in all three halls, marking the site fully in service.
The data centre delivers a PUE of under 1.2 and is powered exclusively by renewable hydropower. It is designed for heat reuse, with ongoing collaborations aimed at supplying surplus energy to local buildings. Built to Tier III standards, OSL‑Hamar utilises free cooling from Norway’s cool climate (average annual temperature ~5.8 °C) and offers independent grid feeds, redundant infrastructure and robust security measures.
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Why it’s important
The OSL‑Hamar campus represents a turning point in sustainable hyperscale data centre development. With TikTok deploying all three 30 MW buildings, Green Mountain has demonstrated that large‑scale cloud platforms can be supported entirely on renewables in Europe while achieving ultra‑efficient operations. The option to expand to 150 MW underlines anticipated future demand.
Furthermore, the site emphasises the potential for data centre heat reuse initiatives to benefit local communities—not just through job creation but also by reducing reliance on traditional heating, aligning digital infrastructure growth with sustainability and social impact ideals.
