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Data as of 2026-09-19
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Built 2026-09-21 (21 September 2026)

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

In the 27 complete local days from 23 August to 19 September 2026, electricity demand in Slovakia averaged 2,717 MW and typically peaked at 19:00 local time (2,992 MW) and bottomed out at 03:00 (2,280 MW). With solar and wind taken off, the remaining load fell to 2,280 MW at 03:00 and then rose 319 MW between 15:00 to 18:00. Hours are local clock time (Europe/Bratislava).

Key Facts

  • Over 27 complete local days from 23 August to 19 September 2026, average demand in Slovakia was 2,717 MW. The hour of the day with the highest average demand was 19:00 local time (2,992 MW) and the lowest was 03:00 (2,280 MW).
  • The largest three hour rise in average demand was 142 MW, between 16:00 to 19:00 local time.
  • The single highest hour of demand in the 30 day window was 3,423 MW, in the hour starting 11 Sept 2026, 11:00 CEST (UTC+02:00).
  • Solar output averaged 298 MW at its 12:00 peak, 11% of average demand.
  • Demand minus solar and wind (net load) averaged 2,624 MW, fell to 2,280 MW at 03:00 and rose 319 MW over the three hours from 15:00 to 18:00, 12% of average demand.

Average Day by Local Hour

27 days to 2026-09-19, Europe/Bratislava time
Slovakia average demand and net generation by local hour Average electricity demand in Slovakia by local clock hour over 27 complete local days from 23 August to 19 September 2026. It was lowest at 03:00 (2,280 MW) and highest at 19:00 (2,992 MW). Net generation is the power produced inside the grid, so it differs from demand by net imports. 0 1,000 2,000 3,000 4,000 00:0003:0006:0009:0012:0015:0018:0021:00
Average electricity demand in Slovakia by local clock hour over 27 complete local days from 23 August to 19 September 2026. It was lowest at 03:00 (2,280 MW) and highest at 19:00 (2,992 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
Slovakia average demand and net generation by local hour
Local hour (Europe/Bratislava)DemandNet generation
00:002,418 MW2,839 MW
01:002,328 MW2,751 MW
02:002,286 MW2,711 MW
03:002,280 MW2,696 MW
04:002,329 MW2,714 MW
05:002,430 MW2,756 MW
06:002,663 MW2,879 MW
07:002,799 MW2,966 MW
08:002,883 MW2,960 MW
09:002,933 MW2,868 MW
10:002,895 MW2,837 MW
11:002,913 MW2,849 MW
12:002,918 MW2,848 MW
13:002,883 MW2,835 MW
14:002,812 MW2,805 MW
15:002,796 MW2,772 MW
16:002,850 MW2,795 MW
17:002,903 MW3,009 MW
18:002,926 MW3,191 MW
19:002,992 MW3,324 MW
20:002,980 MW3,314 MW
21:002,817 MW3,203 MW
22:002,646 MW3,084 MW
23:002,519 MW2,982 MW
Slovakia duck curve: demand and net load by local hour Average demand and net load (demand minus solar and wind) in Slovakia by local clock hour over 27 complete local days from 23 August to 19 September 2026. Net load was lowest at 03:00 (2,280 MW) and then rose 319 MW between 15:00 to 18:00. 0 750 1,500 2,250 3,000 00:0003:0006:0009:0012:0015:0018:0021:00
Average demand and net load (demand minus solar and wind) in Slovakia by local clock hour over 27 complete local days from 23 August to 19 September 2026. Net load was lowest at 03:00 (2,280 MW) and then rose 319 MW between 15:00 to 18:00.
Mean MW by local hour, 2026-08-23 to 2026-09-19
Slovakia duck curve: demand and net load by local hour
Local hour (Europe/Bratislava)DemandNet load (demand minus solar and wind)
00:002,418 MW2,418 MW
01:002,328 MW2,327 MW
02:002,286 MW2,286 MW
03:002,280 MW2,280 MW
04:002,329 MW2,328 MW
05:002,430 MW2,428 MW
06:002,663 MW2,656 MW
07:002,799 MW2,748 MW
08:002,883 MW2,759 MW
09:002,933 MW2,739 MW
10:002,895 MW2,642 MW
11:002,913 MW2,625 MW
12:002,918 MW2,620 MW
13:002,883 MW2,597 MW
14:002,812 MW2,559 MW
15:002,796 MW2,588 MW
16:002,850 MW2,702 MW
17:002,903 MW2,827 MW
18:002,926 MW2,906 MW
19:002,992 MW2,988 MW
20:002,980 MW2,977 MW
21:002,817 MW2,817 MW
22:002,646 MW2,646 MW
23:002,519 MW2,519 MW
Slovakia average solar and wind output by local hour Average solar and wind generation in Slovakia by local clock hour over 27 complete local days from 23 August to 19 September 2026. Solar peaked at 12:00 at 298 MW. 0 75 150 225 300 00:0003:0006:0009:0012:0015:0018:0021:00
Average solar and wind generation in Slovakia by local clock hour over 27 complete local days from 23 August to 19 September 2026. Solar peaked at 12:00 at 298 MW.
Mean MW by local hour, 2026-08-23 to 2026-09-19
Slovakia average solar and wind output by local hour
Local hour (Europe/Bratislava)SolarWind
00:000 MW0 MW
01:000 MW0 MW
02:000 MW0 MW
03:000 MW0 MW
04:000 MW0 MW
05:001 MW0 MW
06:007 MW0 MW
07:0050 MW0 MW
08:00123 MW0 MW
09:00194 MW0 MW
10:00252 MW0 MW
11:00287 MW0 MW
12:00298 MW0 MW
13:00286 MW0 MW
14:00253 MW0 MW
15:00208 MW0 MW
16:00148 MW0 MW
17:0076 MW0 MW
18:0019 MW0 MW
19:003 MW0 MW
20:002 MW0 MW
21:000 MW0 MW
22:000 MW0 MW
23:000 MW0 MW
Average Slovakia demand, net generation, solar, wind and net load by local hour
Local hourDemandNet generationSolarWindNet load
00:00 2,418 MW 2,839 MW 0 MW 0 MW 2,418 MW
01:00 2,328 MW 2,751 MW 0 MW 0 MW 2,327 MW
02:00 2,286 MW 2,711 MW 0 MW 0 MW 2,286 MW
03:00 2,280 MW 2,696 MW 0 MW 0 MW 2,280 MW
04:00 2,329 MW 2,714 MW 0 MW 0 MW 2,328 MW
05:00 2,430 MW 2,756 MW 1 MW 0 MW 2,428 MW
06:00 2,663 MW 2,879 MW 7 MW 0 MW 2,656 MW
07:00 2,799 MW 2,966 MW 50 MW 0 MW 2,748 MW
08:00 2,883 MW 2,960 MW 123 MW 0 MW 2,759 MW
09:00 2,933 MW 2,868 MW 194 MW 0 MW 2,739 MW
10:00 2,895 MW 2,837 MW 252 MW 0 MW 2,642 MW
11:00 2,913 MW 2,849 MW 287 MW 0 MW 2,625 MW
12:00 2,918 MW 2,848 MW 298 MW 0 MW 2,620 MW
13:00 2,883 MW 2,835 MW 286 MW 0 MW 2,597 MW
14:00 2,812 MW 2,805 MW 253 MW 0 MW 2,559 MW
15:00 2,796 MW 2,772 MW 208 MW 0 MW 2,588 MW
16:00 2,850 MW 2,795 MW 148 MW 0 MW 2,702 MW
17:00 2,903 MW 3,009 MW 76 MW 0 MW 2,827 MW
18:00 2,926 MW 3,191 MW 19 MW 0 MW 2,906 MW
19:00 2,992 MW 3,324 MW 3 MW 0 MW 2,988 MW
20:00 2,980 MW 3,314 MW 2 MW 0 MW 2,977 MW
21:00 2,817 MW 3,203 MW 0 MW 0 MW 2,817 MW
22:00 2,646 MW 3,084 MW 0 MW 0 MW 2,646 MW
23:00 2,519 MW 2,982 MW 0 MW 0 MW 2,519 MW

Each value is the mean over 27 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 3,423 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/Bratislava. 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 27 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 27 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.