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

Bulgaria 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 Bulgaria averaged 3,721 MW and typically peaked at 19:00 local time (4,286 MW) and bottomed out at 04:00 (2,917 MW). With solar and wind taken off, the remaining load fell to 609 MW at 11:00 and then rose 2,139 MW between 15:00 to 18:00. Hours are local clock time (Europe/Sofia).

Key Facts

  • Over 28 complete local days from 23 August to 19 September 2026, average demand in Bulgaria was 3,721 MW. The hour of the day with the highest average demand was 19:00 local time (4,286 MW) and the lowest was 04:00 (2,917 MW).
  • The largest three hour rise in average demand was 168 MW, between 16:00 to 19:00 local time.
  • The single highest hour of demand in the 30 day window was 4,817 MW, in the hour starting 24 Aug 2026, 14:00 EEST (UTC+03:00).
  • Solar output averaged 3,307 MW at its 11:00 peak, 89% of average demand.
  • Demand minus solar and wind (net load) averaged 2,228 MW, fell to 609 MW at 11:00 and rose 2,139 MW over the three hours from 15:00 to 18:00, 57% of average demand.

Average Day by Local Hour

28 days to 2026-09-19, Europe/Sofia time
Bulgaria average demand and net generation by local hour Average electricity demand in Bulgaria by local clock hour over 28 complete local days from 23 August to 19 September 2026. It was lowest at 04:00 (2,917 MW) and highest at 19:00 (4,286 MW). Net generation is the power produced inside the grid, so it differs from demand by net imports. 0 2,000 4,000 6,000 8,000 00:0003:0006:0009:0012:0015:0018:0021:00
Average electricity demand in Bulgaria by local clock hour over 28 complete local days from 23 August to 19 September 2026. It was lowest at 04:00 (2,917 MW) and highest at 19:00 (4,286 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
Bulgaria average demand and net generation by local hour
Local hour (Europe/Sofia)DemandNet generation
00:003,295 MW3,521 MW
01:003,088 MW3,321 MW
02:002,980 MW3,229 MW
03:002,929 MW3,144 MW
04:002,917 MW3,125 MW
05:002,999 MW3,225 MW
06:003,247 MW3,425 MW
07:003,485 MW4,069 MW
08:003,727 MW4,931 MW
09:003,847 MW5,709 MW
10:003,902 MW5,963 MW
11:003,979 MW5,866 MW
12:004,036 MW5,496 MW
13:004,118 MW5,351 MW
14:004,116 MW5,396 MW
15:004,116 MW5,550 MW
16:004,118 MW5,735 MW
17:004,167 MW5,396 MW
18:004,242 MW5,092 MW
19:004,286 MW5,822 MW
20:004,281 MW6,165 MW
21:004,063 MW5,892 MW
22:003,804 MW5,113 MW
23:003,559 MW4,168 MW
Bulgaria duck curve: demand and net load by local hour Average demand and net load (demand minus solar and wind) in Bulgaria by local clock hour over 28 complete local days from 23 August to 19 September 2026. Net load was lowest at 11:00 (609 MW) and then rose 2,139 MW between 15:00 to 18:00. 0 1,250 2,500 3,750 5,000 00:0003:0006:0009:0012:0015:0018:0021:00
Average demand and net load (demand minus solar and wind) in Bulgaria by local clock hour over 28 complete local days from 23 August to 19 September 2026. Net load was lowest at 11:00 (609 MW) and then rose 2,139 MW between 15:00 to 18:00.
Mean MW by local hour, 2026-08-23 to 2026-09-19
Bulgaria duck curve: demand and net load by local hour
Local hour (Europe/Sofia)DemandNet load (demand minus solar and wind)
00:003,295 MW3,150 MW
01:003,088 MW2,995 MW
02:002,980 MW2,892 MW
03:002,929 MW2,841 MW
04:002,917 MW2,825 MW
05:002,999 MW2,902 MW
06:003,247 MW3,113 MW
07:003,485 MW2,936 MW
08:003,727 MW2,190 MW
09:003,847 MW1,213 MW
10:003,902 MW712 MW
11:003,979 MW609 MW
12:004,036 MW684 MW
13:004,118 MW845 MW
14:004,116 MW893 MW
15:004,116 MW982 MW
16:004,118 MW1,307 MW
17:004,167 MW2,130 MW
18:004,242 MW3,120 MW
19:004,286 MW3,108 MW
20:004,281 MW2,933 MW
21:004,063 MW2,860 MW
22:003,804 MW3,010 MW
23:003,559 MW3,225 MW
Bulgaria average solar and wind output by local hour Average solar and wind generation in Bulgaria by local clock hour over 28 complete local days from 23 August to 19 September 2026. Solar peaked at 11:00 at 3,307 MW. 0 1,000 2,000 3,000 4,000 00:0003:0006:0009:0012:0015:0018:0021:00
Average solar and wind generation in Bulgaria by local clock hour over 28 complete local days from 23 August to 19 September 2026. Solar peaked at 11:00 at 3,307 MW.
Mean MW by local hour, 2026-08-23 to 2026-09-19
Bulgaria average solar and wind output by local hour
Local hour (Europe/Sofia)SolarWind
00:0066 MW79 MW
01:009 MW84 MW
02:004 MW84 MW
03:001 MW86 MW
04:001 MW91 MW
05:001 MW96 MW
06:0030 MW104 MW
07:00450 MW99 MW
08:001,458 MW80 MW
09:002,559 MW75 MW
10:003,121 MW69 MW
11:003,307 MW63 MW
12:003,286 MW65 MW
13:003,205 MW68 MW
14:003,149 MW74 MW
15:003,054 MW80 MW
16:002,731 MW81 MW
17:001,959 MW78 MW
18:001,047 MW75 MW
19:001,096 MW82 MW
20:001,268 MW80 MW
21:001,122 MW81 MW
22:00716 MW79 MW
23:00264 MW70 MW
Average Bulgaria demand, net generation, solar, wind and net load by local hour
Local hourDemandNet generationSolarWindNet load
00:00 3,295 MW 3,521 MW 66 MW 79 MW 3,150 MW
01:00 3,088 MW 3,321 MW 9 MW 84 MW 2,995 MW
02:00 2,980 MW 3,229 MW 4 MW 84 MW 2,892 MW
03:00 2,929 MW 3,144 MW 1 MW 86 MW 2,841 MW
04:00 2,917 MW 3,125 MW 1 MW 91 MW 2,825 MW
05:00 2,999 MW 3,225 MW 1 MW 96 MW 2,902 MW
06:00 3,247 MW 3,425 MW 30 MW 104 MW 3,113 MW
07:00 3,485 MW 4,069 MW 450 MW 99 MW 2,936 MW
08:00 3,727 MW 4,931 MW 1,458 MW 80 MW 2,190 MW
09:00 3,847 MW 5,709 MW 2,559 MW 75 MW 1,213 MW
10:00 3,902 MW 5,963 MW 3,121 MW 69 MW 712 MW
11:00 3,979 MW 5,866 MW 3,307 MW 63 MW 609 MW
12:00 4,036 MW 5,496 MW 3,286 MW 65 MW 684 MW
13:00 4,118 MW 5,351 MW 3,205 MW 68 MW 845 MW
14:00 4,116 MW 5,396 MW 3,149 MW 74 MW 893 MW
15:00 4,116 MW 5,550 MW 3,054 MW 80 MW 982 MW
16:00 4,118 MW 5,735 MW 2,731 MW 81 MW 1,307 MW
17:00 4,167 MW 5,396 MW 1,959 MW 78 MW 2,130 MW
18:00 4,242 MW 5,092 MW 1,047 MW 75 MW 3,120 MW
19:00 4,286 MW 5,822 MW 1,096 MW 82 MW 3,108 MW
20:00 4,281 MW 6,165 MW 1,268 MW 80 MW 2,933 MW
21:00 4,063 MW 5,892 MW 1,122 MW 81 MW 2,860 MW
22:00 3,804 MW 5,113 MW 716 MW 79 MW 3,010 MW
23:00 3,559 MW 4,168 MW 264 MW 70 MW 3,225 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 4,817 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/Sofia. 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.