Built 2026-09-21 (21 September 2026)

Czechia Daily Load Shape and Duck Curve by Hour, 23 August to 19 September 2026

In the 28 complete local days from 23 August to 19 September 2026, electricity demand in Czechia averaged 6,612 MW and typically peaked at 12:00 local time (8,094 MW) and bottomed out at 03:00 (5,176 MW). With solar and wind taken off, the remaining load fell to 5,099 MW at 03:00 and then rose 958 MW between 15:00 to 18:00. Hours are local clock time (Europe/Prague).

Key Facts

  • Over 28 complete local days from 23 August to 19 September 2026, average demand in Czechia was 6,612 MW. The hour of the day with the highest average demand was 12:00 local time (8,094 MW) and the lowest was 03:00 (5,176 MW).
  • The single highest hour of demand in the 30 day window was 8,815 MW, in the hour starting 8 Sept 2026, 12:00 CEST (UTC+02:00).
  • Solar output averaged 2,399 MW at its 12:00 peak, 36% of average demand.
  • Demand minus solar and wind (net load) averaged 5,757 MW, fell to 5,099 MW at 03:00 and rose 958 MW over the three hours from 15:00 to 18:00, 14% of average demand.

Average Day by Local Hour

28 days to 2026-09-19, Europe/Prague time
Czechia average demand and net generation by local hour Average electricity demand in Czechia by local clock hour over 28 complete local days from 23 August to 19 September 2026. It was lowest at 03:00 (5,176 MW) and highest at 12:00 (8,094 MW). Net generation is the power produced inside the grid, so it differs from demand by net imports. 0 2,500 5,000 7,500 10,000 00:0003:0006:0009:0012:0015:0018:0021:00
Average electricity demand in Czechia by local clock hour over 28 complete local days from 23 August to 19 September 2026. It was lowest at 03:00 (5,176 MW) and highest at 12:00 (8,094 MW). Net generation is the power produced inside the grid, so it differs from demand by net imports.
Mean MW by local hour, 2026-08-23 to 2026-09-19
Czechia average demand and net generation by local hour
Local hour (Europe/Prague)DemandNet generation
00:005,373 MW7,363 MW
01:005,307 MW7,242 MW
02:005,201 MW7,173 MW
03:005,176 MW7,173 MW
04:005,242 MW7,190 MW
05:005,554 MW7,339 MW
06:006,230 MW7,782 MW
07:006,688 MW8,220 MW
08:007,203 MW8,389 MW
09:007,651 MW8,454 MW
10:007,836 MW8,193 MW
11:008,032 MW7,846 MW
12:008,094 MW7,635 MW
13:007,977 MW7,466 MW
14:007,635 MW7,313 MW
15:007,360 MW7,328 MW
16:007,123 MW7,817 MW
17:006,920 MW8,147 MW
18:006,753 MW8,400 MW
19:006,768 MW8,806 MW
20:006,612 MW8,871 MW
21:006,277 MW8,492 MW
22:005,994 MW8,110 MW
23:005,679 MW7,656 MW
Czechia duck curve: demand and net load by local hour Average demand and net load (demand minus solar and wind) in Czechia by local clock hour over 28 complete local days from 23 August to 19 September 2026. Net load was lowest at 03:00 (5,099 MW) and then rose 958 MW between 15:00 to 18:00. 0 2,500 5,000 7,500 10,000 00:0003:0006:0009:0012:0015:0018:0021:00
Average demand and net load (demand minus solar and wind) in Czechia by local clock hour over 28 complete local days from 23 August to 19 September 2026. Net load was lowest at 03:00 (5,099 MW) and then rose 958 MW between 15:00 to 18:00.
Mean MW by local hour, 2026-08-23 to 2026-09-19
Czechia duck curve: demand and net load by local hour
Local hour (Europe/Prague)DemandNet load (demand minus solar and wind)
00:005,373 MW5,295 MW
01:005,307 MW5,228 MW
02:005,201 MW5,122 MW
03:005,176 MW5,099 MW
04:005,242 MW5,166 MW
05:005,554 MW5,451 MW
06:006,230 MW6,065 MW
07:006,688 MW6,255 MW
08:007,203 MW6,194 MW
09:007,651 MW6,033 MW
10:007,836 MW5,736 MW
11:008,032 MW5,643 MW
12:008,094 MW5,622 MW
13:007,977 MW5,573 MW
14:007,635 MW5,384 MW
15:007,360 MW5,423 MW
16:007,123 MW5,645 MW
17:006,920 MW6,025 MW
18:006,753 MW6,381 MW
19:006,768 MW6,599 MW
20:006,612 MW6,509 MW
21:006,277 MW6,201 MW
22:005,994 MW5,916 MW
23:005,679 MW5,601 MW
Czechia average solar and wind output by local hour Average solar and wind generation in Czechia by local clock hour over 28 complete local days from 23 August to 19 September 2026. Solar peaked at 12:00 at 2,399 MW. 0 625 1,250 1,875 2,500 00:0003:0006:0009:0012:0015:0018:0021:00
Average solar and wind generation in Czechia by local clock hour over 28 complete local days from 23 August to 19 September 2026. Solar peaked at 12:00 at 2,399 MW.
Mean MW by local hour, 2026-08-23 to 2026-09-19
Czechia average solar and wind output by local hour
Local hour (Europe/Prague)SolarWind
00:000 MW78 MW
01:000 MW78 MW
02:000 MW79 MW
03:000 MW78 MW
04:000 MW76 MW
05:0029 MW74 MW
06:0091 MW74 MW
07:00361 MW73 MW
08:00943 MW66 MW
09:001,556 MW62 MW
10:002,035 MW65 MW
11:002,319 MW71 MW
12:002,399 MW72 MW
13:002,330 MW74 MW
14:002,177 MW74 MW
15:001,866 MW71 MW
16:001,412 MW67 MW
17:00830 MW65 MW
18:00312 MW61 MW
19:00104 MW64 MW
20:0035 MW68 MW
21:000 MW76 MW
22:000 MW78 MW
23:000 MW79 MW
Average Czechia demand, net generation, solar, wind and net load by local hour
Local hourDemandNet generationSolarWindNet load
00:00 5,373 MW 7,363 MW 0 MW 78 MW 5,295 MW
01:00 5,307 MW 7,242 MW 0 MW 78 MW 5,228 MW
02:00 5,201 MW 7,173 MW 0 MW 79 MW 5,122 MW
03:00 5,176 MW 7,173 MW 0 MW 78 MW 5,099 MW
04:00 5,242 MW 7,190 MW 0 MW 76 MW 5,166 MW
05:00 5,554 MW 7,339 MW 29 MW 74 MW 5,451 MW
06:00 6,230 MW 7,782 MW 91 MW 74 MW 6,065 MW
07:00 6,688 MW 8,220 MW 361 MW 73 MW 6,255 MW
08:00 7,203 MW 8,389 MW 943 MW 66 MW 6,194 MW
09:00 7,651 MW 8,454 MW 1,556 MW 62 MW 6,033 MW
10:00 7,836 MW 8,193 MW 2,035 MW 65 MW 5,736 MW
11:00 8,032 MW 7,846 MW 2,319 MW 71 MW 5,643 MW
12:00 8,094 MW 7,635 MW 2,399 MW 72 MW 5,622 MW
13:00 7,977 MW 7,466 MW 2,330 MW 74 MW 5,573 MW
14:00 7,635 MW 7,313 MW 2,177 MW 74 MW 5,384 MW
15:00 7,360 MW 7,328 MW 1,866 MW 71 MW 5,423 MW
16:00 7,123 MW 7,817 MW 1,412 MW 67 MW 5,645 MW
17:00 6,920 MW 8,147 MW 830 MW 65 MW 6,025 MW
18:00 6,753 MW 8,400 MW 312 MW 61 MW 6,381 MW
19:00 6,768 MW 8,806 MW 104 MW 64 MW 6,599 MW
20:00 6,612 MW 8,871 MW 35 MW 68 MW 6,509 MW
21:00 6,277 MW 8,492 MW 0 MW 76 MW 6,201 MW
22:00 5,994 MW 8,110 MW 0 MW 78 MW 5,916 MW
23:00 5,679 MW 7,656 MW 0 MW 79 MW 5,601 MW

Each value is the mean over 28 complete local days from 23 August to 19 September 2026, weekdays and weekends together, for the hour starting at that local clock time. Net load is demand minus solar and wind generation. The single highest hour of demand in the whole 30 day window was 8,815 MW; it is a published reading, not an average, and is not part of the profile above.

Source: ENTSO-E Transparency Platform (transparency.entsoe.eu), CC BY 4.0. Aggregated and converted by World Power Monitor; ENTSO-E does not endorse this site. (ENTSO-E Terms of Use plus CC BY 4.0 for listed data items) Data as of 2026-09-19. Profiles are computed by World Power Monitor from the operator's hourly series.

Assumptions

  • Hours are local clock time in Europe/Prague. A local day is used only if it is whole inside the 30 day window and at least 22 of its hours are complete; the profile uses the 28 most recent such days. Daylight saving follows the local clock: on a clock change day the missing hour is absent and the repeated hour is averaged over both readings.
  • The average mixes weekdays and weekends and covers only 28 days, so it describes recent conditions, not a seasonal norm.
  • The evening ramp is the largest rise over three hours in the average profile, starting between 14:00 and 20:00 local time.