Fingrid Electricity System of Finland (web)

Fingrid’s own explainer page describing Finland’s electricity grid structure — main grid and distribution networks — and who operates each layer. Used here as Sweden’s closest Nordic comparator on the “how many grid levels, who owns the middle one” question.

The page carries no publication date; published is the fetch date.

Key findings

This page describes Finland’s grid in two named components, not a three-tier structure. Fingrid’s own text uses only “main grid” and “distribution networks” (the latter spanning the full 0.4–110 kV range); “regionally” appears once as an adverb (“distribution networks… transmit electricity regionally on 110 kV lines”), not as a separate tier label. Any three-tier stam-/region-/lokalnät comparison to Sweden is a wiki-side inference, not a claim this page itself makes:

• Main grid — Fingrid’s high-voltage meshed backbone: 5,400 km of 400 kV lines, 1,000 km of 220 kV, 7,600 km of 110 kV, 320 km of HVDC cable, 138 substations (all figures confirmed against the raw page, dated 2025 per Fingrid’s own caption)
• Distribution networks — Fingrid’s single umbrella term for everything from 0.4 kV up to and including 110 kV. The opening paragraph separately lists “high-voltage distribution networks” and “other distribution networks” as two components of the power system, but this page does not define where that internal split falls or attach a voltage boundary to it.
• The 110 kV level is therefore where Fingrid’s own main grid lines (7,600 km, listed above) and the 110 kV portion of distribution networks (unquantified on this page) sit side by side — the source of the “shared voltage level” framing used elsewhere in the wiki.

The critical structural fact: Fingrid’s own 110 kV main-grid lines are counted in the main-grid figure above, but this page does not state what share of Finland’s total 110 kV capacity belongs to DSO-operated distribution networks instead. (A companion figure often cited alongside this page — not itself sourced here — puts DSO-operated 110 kV grid at roughly 80% of the national total, with Fingrid operating the remainder.) This means Finland’s answer to “who runs subtransmission” is mixed operation at a single shared voltage level, not a clean ownership split by voltage the way Sweden’s regionnät/stamnät boundary currently works.

Relevance to existing wiki topics

• Electric Grid Structure — direct Nordic comparator for the “Sweden’s three levels vs. the EU’s two” discussion and the Dir. 2026:83 Svk-takeover question: Finland shows that TSO/DSO overlap at the same voltage level is a normal, stable Nordic arrangement, not a transitional anomaly Sweden must resolve by consolidating ownership
• Svenska kraftnät — comparator for Svk’s narrower rådighet (220/400 kV only) against Fingrid’s broader 400/220/110 kV main-grid scope