Estonia grid frequency

Grid frequency · 23 September 2026

Name: Estonia grid frequency, 2026-09-23
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 49.940–50.040 Hz band (288 samples).

The largest deviation from the 50.000 Hz nominal was 0.060 Hz at 18:25.

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

Daily stats

Avg	Min	Max	Samples
49,998 Hz	49,940	50,040	288

Per 15-minute interval

15-minute MTU clearing prices for 23 September 2026 (Europe/Tallinn).
Time (Europe/Tallinn)	Grid frequency
00:00	49,960
00:05	50,010
00:10	50,010
00:15	49,990
00:20	50,020
00:25	50,020
00:30	49,980
00:35	50,000
00:40	50,020
00:45	49,990
00:50	50,020
00:55	50,020
01:00	49,980
01:05	49,950
01:10	49,970
01:15	49,990
01:20	50,010
01:25	50,010
01:30	49,990
01:35	50,010
01:40	50,010
01:45	49,980
01:50	50,000
01:55	50,010
02:00	49,980
02:05	50,000
02:10	50,000
02:15	50,000
02:20	49,990
02:25	50,000
02:30	49,980
02:35	50,010
02:40	50,020
02:45	50,000
02:50	50,010
02:55	50,020
03:00	49,980
03:05	50,000
03:10	50,010
03:15	49,990
03:20	50,010
03:25	49,990
03:30	50,000
03:35	50,000
03:40	50,010
03:45	50,000
03:50	50,020
03:55	49,990
04:00	49,970
04:05	50,010
04:10	50,000
04:15	50,000
04:20	50,000
04:25	50,000
04:30	50,000
04:35	49,990
04:40	50,000
04:45	49,990
04:50	50,010
04:55	50,010
05:00	50,010
05:05	50,000
05:10	50,000
05:15	50,010
05:20	49,990
05:25	50,000
05:30	50,000
05:35	49,990
05:40	49,990
05:45	50,010
05:50	50,000
05:55	50,000
06:00	50,000
06:05	49,990
06:10	49,990
06:15	50,020
06:20	49,990
06:25	49,990
06:30	50,010
06:35	50,000
06:40	49,990
06:45	50,010
06:50	49,980
06:55	49,990
07:00	50,030
07:05	49,960
07:10	49,960
07:15	50,030
07:20	49,980
07:25	49,990
07:30	50,020
07:35	49,980
07:40	49,970
07:45	50,010
07:50	50,000
07:55	49,980
08:00	50,000
08:05	49,960
08:10	49,970
08:15	50,000
08:20	49,980
08:25	50,010
08:30	49,980
08:35	49,990
08:40	50,010
08:45	49,990
08:50	50,020
08:55	50,010
09:00	49,980
09:05	50,000
09:10	50,010
09:15	49,970
09:20	50,010
09:25	50,030
09:30	49,950
09:35	50,030
09:40	50,030
09:45	49,960
09:50	50,040
09:55	50,040
10:00	49,950
10:05	49,990
10:10	50,030
10:15	49,960
10:20	50,020
10:25	50,030
10:30	49,980
10:35	50,020
10:40	50,010
10:45	49,990
10:50	50,010
10:55	50,020
11:00	49,970
11:05	49,980
11:10	50,010
11:15	49,960
11:20	50,030
11:25	50,030
11:30	49,970
11:35	50,010
11:40	50,020
11:45	49,990
11:50	50,030
11:55	50,040
12:00	49,990
12:05	49,990
12:10	50,010
12:15	49,980
12:20	50,000
12:25	50,000
12:30	49,980
12:35	50,010
12:40	50,010
12:45	49,990
12:50	50,020
12:55	50,030
13:00	49,980
13:05	50,020
13:10	50,020
13:15	50,000
13:20	50,010
13:25	50,030
13:30	49,980
13:35	49,990
13:40	50,010
13:45	50,020
13:50	50,020
13:55	50,010
14:00	50,000
14:05	50,000
14:10	50,010
14:15	50,000
14:20	49,990
14:25	50,000
14:30	50,000
14:35	50,000
14:40	50,000
14:45	49,990
14:50	50,000
14:55	50,020
15:00	50,020
15:05	49,990
15:10	50,000
15:15	50,020
15:20	49,980
15:25	49,990
15:30	50,010
15:35	49,990
15:40	49,990
15:45	50,010
15:50	49,990
15:55	50,010
16:00	50,010
16:05	49,980
16:10	49,990
16:15	50,010
16:20	50,000
16:25	50,000
16:30	50,010
16:35	49,990
16:40	49,990
16:45	50,000
16:50	49,990
16:55	50,010
17:00	50,040
17:05	49,990
17:10	49,990
17:15	50,010
17:20	49,980
17:25	49,970
17:30	50,030
17:35	49,980
17:40	49,960
17:45	50,020
17:50	50,010
17:55	50,000
18:00	50,000
18:05	49,990
18:10	49,980
18:15	49,990
18:20	49,960
18:25	49,940
18:30	50,020
18:35	49,970
18:40	49,970
18:45	50,040
18:50	49,970
18:55	49,990
19:00	50,010
19:05	50,010
19:10	49,980
19:15	50,010
19:20	49,970
19:25	49,950
19:30	50,000
19:35	49,970
19:40	49,970
19:45	50,010
19:50	49,980
19:55	49,990
20:00	50,030
20:05	49,980
20:10	49,980
20:15	50,010
20:20	50,000
20:25	49,980
20:30	49,980
20:35	49,980
20:40	49,980
20:45	50,020
20:50	50,010
20:55	50,010
21:00	49,980
21:05	49,990
21:10	50,010
21:15	49,980
21:20	50,000
21:25	50,010
21:30	49,960
21:35	50,010
21:40	50,010
21:45	49,980
21:50	50,010
21:55	50,020
22:00	49,970
22:05	49,990
22:10	50,010
22:15	49,980
22:20	50,010
22:25	50,010
22:30	49,990
22:35	50,030
22:40	50,030
22:45	49,990
22:50	50,020
22:55	50,020
23:00	49,980
23:05	50,000
23:10	50,010
23:15	49,980
23:20	50,010
23:25	50,020
23:30	49,970
23:35	50,000
23:40	49,990
23:45	49,980
23:50	50,010
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 →

Grid frequency · 23 September 2026

Frequency stayed in the 49.940–50.040 Hz band (288 samples).

The largest deviation from the 50.000 Hz nominal was 0.060 Hz at 18:25.

Avg

Min

Max

Samples

49,998 Hz

49,940

50,040

288

Per 15-minute interval

15-minute MTU clearing prices for 23 September 2026 (Europe/Tallinn).
Time (Europe/Tallinn)	Grid frequency
00:00	49,960
00:05	50,010
00:10	50,010
00:15	49,990
00:20	50,020
00:25	50,020
00:30	49,980
00:35	50,000
00:40	50,020
00:45	49,990
00:50	50,020
00:55	50,020
01:00	49,980
01:05	49,950
01:10	49,970
01:15	49,990
01:20	50,010
01:25	50,010
01:30	49,990
01:35	50,010
01:40	50,010
01:45	49,980
01:50	50,000
01:55	50,010
02:00	49,980
02:05	50,000
02:10	50,000
02:15	50,000
02:20	49,990
02:25	50,000
02:30	49,980
02:35	50,010
02:40	50,020
02:45	50,000
02:50	50,010
02:55	50,020
03:00	49,980
03:05	50,000
03:10	50,010
03:15	49,990
03:20	50,010
03:25	49,990
03:30	50,000
03:35	50,000
03:40	50,010
03:45	50,000
03:50	50,020
03:55	49,990
04:00	49,970
04:05	50,010
04:10	50,000
04:15	50,000
04:20	50,000
04:25	50,000
04:30	50,000
04:35	49,990
04:40	50,000
04:45	49,990
04:50	50,010
04:55	50,010
05:00	50,010
05:05	50,000
05:10	50,000
05:15	50,010
05:20	49,990
05:25	50,000
05:30	50,000
05:35	49,990
05:40	49,990
05:45	50,010
05:50	50,000
05:55	50,000
06:00	50,000
06:05	49,990
06:10	49,990
06:15	50,020
06:20	49,990
06:25	49,990
06:30	50,010
06:35	50,000
06:40	49,990
06:45	50,010
06:50	49,980
06:55	49,990
07:00	50,030
07:05	49,960
07:10	49,960
07:15	50,030
07:20	49,980
07:25	49,990
07:30	50,020
07:35	49,980
07:40	49,970
07:45	50,010
07:50	50,000
07:55	49,980
08:00	50,000
08:05	49,960
08:10	49,970
08:15	50,000
08:20	49,980
08:25	50,010
08:30	49,980
08:35	49,990
08:40	50,010
08:45	49,990
08:50	50,020
08:55	50,010
09:00	49,980
09:05	50,000
09:10	50,010
09:15	49,970
09:20	50,010
09:25	50,030
09:30	49,950
09:35	50,030
09:40	50,030
09:45	49,960
09:50	50,040
09:55	50,040
10:00	49,950
10:05	49,990
10:10	50,030
10:15	49,960
10:20	50,020
10:25	50,030
10:30	49,980
10:35	50,020
10:40	50,010
10:45	49,990
10:50	50,010
10:55	50,020
11:00	49,970
11:05	49,980
11:10	50,010
11:15	49,960
11:20	50,030
11:25	50,030
11:30	49,970
11:35	50,010
11:40	50,020
11:45	49,990
11:50	50,030
11:55	50,040
12:00	49,990
12:05	49,990
12:10	50,010
12:15	49,980
12:20	50,000
12:25	50,000
12:30	49,980
12:35	50,010
12:40	50,010
12:45	49,990
12:50	50,020
12:55	50,030
13:00	49,980
13:05	50,020
13:10	50,020
13:15	50,000
13:20	50,010
13:25	50,030
13:30	49,980
13:35	49,990
13:40	50,010
13:45	50,020
13:50	50,020
13:55	50,010
14:00	50,000
14:05	50,000
14:10	50,010
14:15	50,000
14:20	49,990
14:25	50,000
14:30	50,000
14:35	50,000
14:40	50,000
14:45	49,990
14:50	50,000
14:55	50,020
15:00	50,020
15:05	49,990
15:10	50,000
15:15	50,020
15:20	49,980
15:25	49,990
15:30	50,010
15:35	49,990
15:40	49,990
15:45	50,010
15:50	49,990
15:55	50,010
16:00	50,010
16:05	49,980
16:10	49,990
16:15	50,010
16:20	50,000
16:25	50,000
16:30	50,010
16:35	49,990
16:40	49,990
16:45	50,000
16:50	49,990
16:55	50,010
17:00	50,040
17:05	49,990
17:10	49,990
17:15	50,010
17:20	49,980
17:25	49,970
17:30	50,030
17:35	49,980
17:40	49,960
17:45	50,020
17:50	50,010
17:55	50,000
18:00	50,000
18:05	49,990
18:10	49,980
18:15	49,990
18:20	49,960
18:25	49,940
18:30	50,020
18:35	49,970
18:40	49,970
18:45	50,040
18:50	49,970
18:55	49,990
19:00	50,010
19:05	50,010
19:10	49,980
19:15	50,010
19:20	49,970
19:25	49,950
19:30	50,000
19:35	49,970
19:40	49,970
19:45	50,010
19:50	49,980
19:55	49,990
20:00	50,030
20:05	49,980
20:10	49,980
20:15	50,010
20:20	50,000
20:25	49,980
20:30	49,980
20:35	49,980
20:40	49,980
20:45	50,020
20:50	50,010
20:55	50,010
21:00	49,980
21:05	49,990
21:10	50,010
21:15	49,980
21:20	50,000
21:25	50,010
21:30	49,960
21:35	50,010
21:40	50,010
21:45	49,980
21:50	50,010
21:55	50,020
22:00	49,970
22:05	49,990
22:10	50,010
22:15	49,980
22:20	50,010
22:25	50,010
22:30	49,990
22:35	50,030
22:40	50,030
22:45	49,990
22:50	50,020
22:55	50,020
23:00	49,980
23:05	50,000
23:10	50,010
23:15	49,980
23:20	50,010
23:25	50,020
23:30	49,970
23:35	50,000
23:40	49,990
23:45	49,980
23:50	50,010
23:55	50,030