Suurverkko

Suurverkko is a Finnish term meaning "large network" used to describe backbone networks that connect many sub-networks and end users over wide geographic areas. It typically carries high volumes of data or power and is central to the reliability and efficiency of the system. In practice, the term is applied in several sectors, most notably telecommunications, information technology, and electricity transmission, but it can also appear in transportation and logistics planning.

In telecommunications and data networks, suurverkko refers to the backbone network that interconnects regional networks, data centers, and internet exchange points. These backbones rely on fiber-optic links, high-capacity routers, and redundant links to ensure capacity, low latency, and resilience. Access networks connect to the suurverkko, distributing services to homes and businesses.

In electricity systems, suurverkko denotes the high-voltage transmission grid that transports electricity across long distances from generation sites to regional distribution networks. The Finnish high-voltage grid is operated by Fingrid, which manages cross-border interconnections, system stability, and grid reliability. The concept emphasizes security of supply and the need for redundancy and maintenance.

Regulatory and planning contexts treat suurverkko as critical infrastructure requiring coordinated governance, investment, and monitoring. Challenges include capacity growth, cybersecurity, weather-related risks, and aging infrastructure.

See also: backbone network, critical infrastructure, Fingrid, Traficom.