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

Belgium 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 Belgium averaged 8,999 MW and typically peaked at 11:00 local time (10,454 MW) and bottomed out at 04:00 (7,348 MW). With solar taken off, the remaining load fell to 5,454 MW at 14:00 and then rose 2,633 MW between 16:00 to 19:00. Hours are local clock time (Europe/Brussels).

Key Facts

  • Over 28 complete local days from 23 August to 19 September 2026, average demand in Belgium was 8,999 MW. The hour of the day with the highest average demand was 11:00 local time (10,454 MW) and the lowest was 04:00 (7,348 MW).
  • The single highest hour of demand in the 30 day window was 11,699 MW, in the hour starting 15 Sept 2026, 12:00 CEST (UTC+02:00).
  • Solar output averaged 4,709 MW at its 13:00 peak, 52% of average demand.
  • Demand minus solar (net load) averaged 7,523 MW, fell to 5,454 MW at 14:00 and rose 2,633 MW over the three hours from 16:00 to 19:00, 29% of average demand.

Average Day by Local Hour

28 days to 2026-09-19, Europe/Brussels time
Belgium average demand and net generation by local hour Average electricity demand in Belgium by local clock hour over 28 complete local days from 23 August to 19 September 2026. It was lowest at 04:00 (7,348 MW) and highest at 11:00 (10,454 MW). Net generation is the power produced inside the grid, so it differs from demand by net imports. 0 3,000 6,000 9,000 12,000 00:0003:0006:0009:0012:0015:0018:0021:00
Average electricity demand in Belgium by local clock hour over 28 complete local days from 23 August to 19 September 2026. It was lowest at 04:00 (7,348 MW) and highest at 11:00 (10,454 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
Belgium average demand and net generation by local hour
Local hour (Europe/Brussels)DemandNet generation
00:007,910 MW2,700 MW
01:007,656 MW2,464 MW
02:007,451 MW2,380 MW
03:007,351 MW2,377 MW
04:007,348 MW2,372 MW
05:007,569 MW2,431 MW
06:008,150 MW2,695 MW
07:008,742 MW2,883 MW
08:009,415 MW3,675 MW
09:009,898 MW4,354 MW
10:0010,154 MW5,036 MW
11:0010,454 MW5,747 MW
12:0010,389 MW6,055 MW
13:0010,278 MW6,203 MW
14:0010,043 MW6,093 MW
15:009,764 MW5,551 MW
16:009,568 MW4,951 MW
17:009,562 MW4,425 MW
18:009,590 MW4,224 MW
19:009,354 MW3,602 MW
20:009,222 MW3,331 MW
21:009,035 MW3,280 MW
22:008,741 MW3,211 MW
23:008,323 MW3,059 MW
Belgium duck curve: demand and net load by local hour Average demand and net load (demand minus solar) in Belgium by local clock hour over 28 complete local days from 23 August to 19 September 2026. Net load was lowest at 14:00 (5,454 MW) and then rose 2,633 MW between 16:00 to 19:00. 0 3,000 6,000 9,000 12,000 00:0003:0006:0009:0012:0015:0018:0021:00
Average demand and net load (demand minus solar) in Belgium by local clock hour over 28 complete local days from 23 August to 19 September 2026. Net load was lowest at 14:00 (5,454 MW) and then rose 2,633 MW between 16:00 to 19:00.
Mean MW by local hour, 2026-08-23 to 2026-09-19
Belgium duck curve: demand and net load by local hour
Local hour (Europe/Brussels)DemandNet load (demand minus solar)
00:007,910 MW7,910 MW
01:007,656 MW7,656 MW
02:007,451 MW7,451 MW
03:007,351 MW7,351 MW
04:007,348 MW7,348 MW
05:007,569 MW7,569 MW
06:008,150 MW8,150 MW
07:008,742 MW8,580 MW
08:009,415 MW8,491 MW
09:009,898 MW7,886 MW
10:0010,154 MW6,951 MW
11:0010,454 MW6,357 MW
12:0010,389 MW5,882 MW
13:0010,278 MW5,568 MW
14:0010,043 MW5,454 MW
15:009,764 MW5,726 MW
16:009,568 MW6,337 MW
17:009,562 MW7,292 MW
18:009,590 MW8,332 MW
19:009,354 MW8,970 MW
20:009,222 MW9,199 MW
21:009,035 MW9,035 MW
22:008,741 MW8,741 MW
23:008,323 MW8,323 MW
Belgium average solar output by local hour Average solar generation in Belgium by local clock hour over 28 complete local days from 23 August to 19 September 2026. Solar peaked at 13:00 at 4,709 MW. 0 1,250 2,500 3,750 5,000 00:0003:0006:0009:0012:0015:0018:0021:00
Average solar generation in Belgium by local clock hour over 28 complete local days from 23 August to 19 September 2026. Solar peaked at 13:00 at 4,709 MW.
Mean MW by local hour, 2026-08-23 to 2026-09-19
Belgium average solar output by local hour
Local hour (Europe/Brussels)Solar
00:000 MW
01:000 MW
02:000 MW
03:000 MW
04:000 MW
05:000 MW
06:000 MW
07:00162 MW
08:00924 MW
09:002,013 MW
10:003,202 MW
11:004,097 MW
12:004,507 MW
13:004,709 MW
14:004,589 MW
15:004,038 MW
16:003,231 MW
17:002,270 MW
18:001,258 MW
19:00384 MW
20:0022 MW
21:000 MW
22:000 MW
23:000 MW
Average Belgium demand, net generation, solar and net load by local hour
Local hourDemandNet generationSolarNet load
00:00 7,910 MW 2,700 MW 0 MW 7,910 MW
01:00 7,656 MW 2,464 MW 0 MW 7,656 MW
02:00 7,451 MW 2,380 MW 0 MW 7,451 MW
03:00 7,351 MW 2,377 MW 0 MW 7,351 MW
04:00 7,348 MW 2,372 MW 0 MW 7,348 MW
05:00 7,569 MW 2,431 MW 0 MW 7,569 MW
06:00 8,150 MW 2,695 MW 0 MW 8,150 MW
07:00 8,742 MW 2,883 MW 162 MW 8,580 MW
08:00 9,415 MW 3,675 MW 924 MW 8,491 MW
09:00 9,898 MW 4,354 MW 2,013 MW 7,886 MW
10:00 10,154 MW 5,036 MW 3,202 MW 6,951 MW
11:00 10,454 MW 5,747 MW 4,097 MW 6,357 MW
12:00 10,389 MW 6,055 MW 4,507 MW 5,882 MW
13:00 10,278 MW 6,203 MW 4,709 MW 5,568 MW
14:00 10,043 MW 6,093 MW 4,589 MW 5,454 MW
15:00 9,764 MW 5,551 MW 4,038 MW 5,726 MW
16:00 9,568 MW 4,951 MW 3,231 MW 6,337 MW
17:00 9,562 MW 4,425 MW 2,270 MW 7,292 MW
18:00 9,590 MW 4,224 MW 1,258 MW 8,332 MW
19:00 9,354 MW 3,602 MW 384 MW 8,970 MW
20:00 9,222 MW 3,331 MW 22 MW 9,199 MW
21:00 9,035 MW 3,280 MW 0 MW 9,035 MW
22:00 8,741 MW 3,211 MW 0 MW 8,741 MW
23:00 8,323 MW 3,059 MW 0 MW 8,323 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 generation. Wind is left out of the net load calculation for Belgium: the series is missing, reads zero, or is under 3% of average demand in this window. The single highest hour of demand in the whole 30 day window was 11,699 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/Brussels. 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.