Telia Helsinki Data Center (HDC)

Telia's Helsinki Data Center in the Pitajanmaki district is the operator's flagship Finnish facility and is marketed by Telia as the largest carrier-neutral, open data center in the Nordic region, with roughly 15,000 sqm of data hall space and 24 MW of IT power capacity. The site is designed to N+1 cooling redundancy and built to what Telia describes as TIER III and EN 50600 standards, a design-level claim rather than an independent Uptime Institute certification. Where the facility stands out is its certification breadth: alongside the standard ISO 9001, 14001, 27001, 22301 and 50001 management-system certificates, Telia holds LEED Data Center v4.0 green-building certification, CEEDA Design-Operate Gold for energy efficiency, and Finland's Katakri 2020 security audit at TL IV/TL III levels plus Facility Security Clearance — credentials aimed squarely at government and regulated-industry tenants. Waste heat from the facility is sold to Helen, Helsinki's municipal energy utility, and is said to cover the heating needs of roughly 14,000 apartments, a heat-reuse model common among Helsinki-area operators given the city's district heating infrastructure.