Estonia grid frequency

Grid frequency · 27 May 2026

Name: Estonia grid frequency — 2026-05-27
Creator: Volton
License: https://creativecommons.org/licenses/by/4.0/

Real-time AC frequency on the Estonian grid, which has been part of the Continental European Synchronous Area since 9 February 2025. The whole CESA shares one frequency in real time — Estonia and Portugal see the same number. Sourced from Elering, downsampled to 5-min mean and refreshed hourly.

Frequency stayed in the 49.990–50.030 Hz band (8 samples).

Source: Elering via Volton, CC-BY-4.0.

Daily stats

Avg	Min	Max	Samples
50,014 Hz	49,990	50,030	8

Per 15-minute interval

15-minute MTU clearing prices for 27 May 2026 (Europe/Tallinn).
Time (Europe/Tallinn)	Grid frequency
23:20	50,020
23:25	50,020
23:30	49,990
23:35	50,020
23:40	50,020
23:45	49,990
23:50	50,020
23:55	50,030

Concepts

CESA (Continental European Synchronous Area)System imbalance / FRCE FCR (Frequency Containment Reserve)

Source: Elering via Volton, CC-BY-4.0. · Hub: 7-day chart and methodology →