Kantaverkkoa

Kantaverkkoa, or the backbone transmission network, refers to the high-voltage electricity transmission grid that forms the core of Finland’s electric power system. It carries bulk electricity over long distances from generation sites to regional distribution networks and large load centers, enabling regional balancing and cross-border exchange. The kantaverkko is distinguished from local distribution networks that operate at lower voltages and serve cities and municipalities.

The network is operated by Fingrid Oyj, Finland’s transmission system operator. Fingrid is responsible for the real-time operation of the kantaverkko, maintaining system frequency (50 Hz in Finland), ensuring voltage stability, and coordinating cross-border electricity exchanges with neighboring grids in the Nordic-Baltic region. The development and maintenance of the kantaverkko are regulated by Finnish energy legislation and oversight by the Energy Authority.

Technically, the kantaverkko consists of high-voltage transmission lines and substations connecting generation centers to distribution networks and major load areas. It includes interconnections with neighboring countries, enabling imports and exports of electricity and contributing to overall grid reliability and market efficiency. The network is continually enhanced to increase capacity, reliability, and the ability to integrate renewable energy sources such as wind and hydropower, as well as to accommodate growing electricity demand.

In practice, kantaverkkoa refers to the backbone portion of the national grid and is a planning and operation priority for national energy strategy. It is funded through tariffs charged to market participants and consumers, and coordinated as part of the Nordic electricity market administered through Nord Pool and related cross-border arrangements.