When Bahnhof came across the opportunity to expand into the Cold War-era military bunker and nuclear shelter in 2006, they wanted to go far beyond the ordinary. More than 4,000 cubic meters of rock were blasted away to create 1,200 square meters of network operations.
Today, the futuristic data center installation is set deep inside the bedrock beneath Sweden’s capital. Simulated daylight illuminates greenhouses and waterfalls alongside rows of black and white rack cabinets. Immense backup power engines, originally designed for submarines, sit inside rock caverns with blue fluorescent light.
Pionen is one of Bahnhof's largest data centers. It hosts a significant part of Bahnhof's network operations and serves as a colocation center for multiple companies and individuals. Over 6,000 servers needed to be protected against any malfunction caused by power fluctuations. Absolute 24/7 power is critical to their customers’ businesses. And to Bahnhof's success.