Svk aFRR Q4 2026 Procurement (2026)

Title: Upphandling av automatisk frekvensåterställningsreserv (aFRR) för Q4 2026 (joint Nordic TSO note).

Summary

Joint Nordic TSO note setting the aFRR procurement schedule for Q4 2026 (from 1 October). The change: aFRR Down is reduced from 325 MW to 275 MW during hours 7–19 (06:00–19:00 CET, as the table’s rows show); aFRR Up is unchanged. The stated basis is the TSOs’ frequency-quality targets, which stayed within target in early 2026; the TSOs evaluate and re-evaluate the schedule continuously. It follows Source - Svk aFRR Q3 2026 Procurement (2026).

Key figures

• Total Nordic volumes (from 1 October 2026): aFRR Up 200–250 MW, aFRR Down 250–300 MW (Q3: Down 250–325 MW), procured every hour of every day.
• Hourly pattern (CET): Up = 250 MW in hours 1 and 24 and 200 MW otherwise; Down = 300 MW in hours 1 and 24, 275 MW in hours 7–19, 250 MW in the remaining hours.
• Nordic TSO shares (unchanged from Q3):

• The note links a detailed schedule PDF for Q4 2026 and gives contacts at Energinet, Fingrid, Statnett and Svk (aFRR@svk.se).

Key claims and observations

1. The Down reduction is the second daytime trim in two quarters: Q3 cut Up to 200 MW in hours 7–19 and Q4 cuts Down to 275 MW in the same hours. The note does not say why Down was chosen this time beyond frequency quality holding within target.
2. The Up level is unchanged at 200 MW in the daytime hours (consistent with the Q3 table). The Q3 note’s typo (“2025 MW”) is resolved by Svk’s July 2026 monthly report, which says the Nordic daytime up volume was cut by 25 MW in July, i.e. from 225 MW (Source - Svk Månadsrapport Balansmarknader Juli 2026).
3. Pre-PICASSO context: Svk and Statnett connect to PICASSO in Q4 2027 (Nordic Balancing Model); these volumes are the pro-rata procurement that precedes it.

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