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Data as of 2026-11-11
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Built 2026-11-12 (12 November 2026)

SWPW Daily Load Shape and Duck Curve by Hour, 14 October to 11 November 2026

In the 29 complete local days from 14 October to 11 November 2026, electricity demand in SWPW averaged 2,659 MW and typically peaked at 19:00 local time (2,920 MW) and bottomed out at 03:00 (2,420 MW). With solar and wind taken off, the remaining load fell to 1,748 MW at 12:00 and then rose 606 MW between 15:00 to 18:00. Hours are local clock time (America/Chicago).

Key Facts

  • Over 29 complete local days from 14 October to 11 November 2026, average demand in SWPW was 2,659 MW. The hour of the day with the highest average demand was 19:00 local time (2,920 MW) and the lowest was 03:00 (2,420 MW).
  • The largest three hour rise in average demand was 231 MW, between 16:00 to 19:00 local time.
  • The single highest hour of demand in the 30 day window was 3,131 MW, in the hour starting 2 Nov 2026, 18:00 CST (UTC-06:00).
  • Solar output averaged 540 MW at its 12:00 peak, 20% of average demand.
  • Demand minus solar and wind (net load) averaged 2,090 MW, fell to 1,748 MW at 12:00 and rose 606 MW over the three hours from 15:00 to 18:00, 23% of average demand.

Average Day by Local Hour

29 days to 2026-11-11, America/Chicago time
SWPW average demand and net generation by local hour Average electricity demand in SWPW by local clock hour over 29 complete local days from 14 October to 11 November 2026. It was lowest at 03:00 (2,420 MW) and highest at 19:00 (2,920 MW). Net generation is the power produced inside the grid, so it differs from demand by net imports. 0 750 1,500 2,250 3,000 00:0003:0006:0009:0012:0015:0018:0021:00
Average electricity demand in SWPW by local clock hour over 29 complete local days from 14 October to 11 November 2026. It was lowest at 03:00 (2,420 MW) and highest at 19:00 (2,920 MW). Net generation is the power produced inside the grid, so it differs from demand by net imports.
Mean MW by local hour, 2026-10-14 to 2026-11-11
SWPW average demand and net generation by local hour
Local hour (America/Chicago)DemandNet generation
00:002,554 MW2,446 MW
01:002,480 MW2,344 MW
02:002,440 MW2,305 MW
03:002,420 MW2,291 MW
04:002,422 MW2,313 MW
05:002,455 MW2,352 MW
06:002,549 MW2,414 MW
07:002,695 MW2,536 MW
08:002,762 MW2,592 MW
09:002,735 MW2,615 MW
10:002,690 MW2,575 MW
11:002,661 MW2,569 MW
12:002,632 MW2,542 MW
13:002,627 MW2,551 MW
14:002,636 MW2,549 MW
15:002,644 MW2,530 MW
16:002,689 MW2,589 MW
17:002,773 MW2,653 MW
18:002,875 MW2,715 MW
19:002,920 MW2,759 MW
20:002,895 MW2,733 MW
21:002,838 MW2,646 MW
22:002,767 MW2,589 MW
23:002,658 MW2,488 MW
SWPW duck curve: demand and net load by local hour Average demand and net load (demand minus solar and wind) in SWPW by local clock hour over 29 complete local days from 14 October to 11 November 2026. Net load was lowest at 12:00 (1,748 MW) and then rose 606 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 SWPW by local clock hour over 29 complete local days from 14 October to 11 November 2026. Net load was lowest at 12:00 (1,748 MW) and then rose 606 MW between 15:00 to 18:00.
Mean MW by local hour, 2026-10-14 to 2026-11-11
SWPW duck curve: demand and net load by local hour
Local hour (America/Chicago)DemandNet load (demand minus solar and wind)
00:002,554 MW2,091 MW
01:002,480 MW2,039 MW
02:002,440 MW2,001 MW
03:002,420 MW1,982 MW
04:002,422 MW1,985 MW
05:002,455 MW2,023 MW
06:002,549 MW2,114 MW
07:002,695 MW2,252 MW
08:002,762 MW2,247 MW
09:002,735 MW2,017 MW
10:002,690 MW1,857 MW
11:002,661 MW1,780 MW
12:002,632 MW1,748 MW
13:002,627 MW1,770 MW
14:002,636 MW1,819 MW
15:002,644 MW1,872 MW
16:002,689 MW1,981 MW
17:002,773 MW2,226 MW
18:002,875 MW2,478 MW
19:002,920 MW2,544 MW
20:002,895 MW2,468 MW
21:002,838 MW2,383 MW
22:002,767 MW2,301 MW
23:002,658 MW2,191 MW
SWPW average solar and wind output by local hour Average solar and wind generation in SWPW by local clock hour over 29 complete local days from 14 October to 11 November 2026. Solar peaked at 12:00 at 540 MW. 0 150 300 450 600 00:0003:0006:0009:0012:0015:0018:0021:00
Average solar and wind generation in SWPW by local clock hour over 29 complete local days from 14 October to 11 November 2026. Solar peaked at 12:00 at 540 MW.
Mean MW by local hour, 2026-10-14 to 2026-11-11
SWPW average solar and wind output by local hour
Local hour (America/Chicago)SolarWind
00:000 MW464 MW
01:000 MW441 MW
02:000 MW439 MW
03:000 MW439 MW
04:000 MW437 MW
05:000 MW433 MW
06:000 MW436 MW
07:002 MW442 MW
08:0077 MW438 MW
09:00315 MW404 MW
10:00467 MW366 MW
11:00523 MW358 MW
12:00540 MW344 MW
13:00518 MW339 MW
14:00496 MW320 MW
15:00467 MW305 MW
16:00405 MW304 MW
17:00244 MW302 MW
18:0079 MW318 MW
19:002 MW374 MW
20:001 MW426 MW
21:001 MW453 MW
22:000 MW466 MW
23:000 MW467 MW
Average SWPW demand, net generation, solar, wind and net load by local hour
Local hourDemandNet generationSolarWindNet load
00:00 2,554 MW 2,446 MW 0 MW 464 MW 2,091 MW
01:00 2,480 MW 2,344 MW 0 MW 441 MW 2,039 MW
02:00 2,440 MW 2,305 MW 0 MW 439 MW 2,001 MW
03:00 2,420 MW 2,291 MW 0 MW 439 MW 1,982 MW
04:00 2,422 MW 2,313 MW 0 MW 437 MW 1,985 MW
05:00 2,455 MW 2,352 MW 0 MW 433 MW 2,023 MW
06:00 2,549 MW 2,414 MW 0 MW 436 MW 2,114 MW
07:00 2,695 MW 2,536 MW 2 MW 442 MW 2,252 MW
08:00 2,762 MW 2,592 MW 77 MW 438 MW 2,247 MW
09:00 2,735 MW 2,615 MW 315 MW 404 MW 2,017 MW
10:00 2,690 MW 2,575 MW 467 MW 366 MW 1,857 MW
11:00 2,661 MW 2,569 MW 523 MW 358 MW 1,780 MW
12:00 2,632 MW 2,542 MW 540 MW 344 MW 1,748 MW
13:00 2,627 MW 2,551 MW 518 MW 339 MW 1,770 MW
14:00 2,636 MW 2,549 MW 496 MW 320 MW 1,819 MW
15:00 2,644 MW 2,530 MW 467 MW 305 MW 1,872 MW
16:00 2,689 MW 2,589 MW 405 MW 304 MW 1,981 MW
17:00 2,773 MW 2,653 MW 244 MW 302 MW 2,226 MW
18:00 2,875 MW 2,715 MW 79 MW 318 MW 2,478 MW
19:00 2,920 MW 2,759 MW 2 MW 374 MW 2,544 MW
20:00 2,895 MW 2,733 MW 1 MW 426 MW 2,468 MW
21:00 2,838 MW 2,646 MW 1 MW 453 MW 2,383 MW
22:00 2,767 MW 2,589 MW 0 MW 466 MW 2,301 MW
23:00 2,658 MW 2,488 MW 0 MW 467 MW 2,191 MW

Each value is the mean over 29 complete local days from 14 October to 11 November 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 3,131 MW; it is a published reading, not an average, and is not part of the profile above.

Source: U.S. Energy Information Administration (EIA). (US Government work, public domain) Data as of 2026-11-11. Profiles are computed by World Power Monitor from the operator's hourly series.

Assumptions

  • Hours are local clock time in America/Chicago. 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 29 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 29 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.
Cite this page
APA 7

World Power Monitor. (2026). SWPW Daily Load Shape and Duck Curve by Hour. https://worldpowermonitor.com/load-shapes/spp-west/

Plain text

World Power Monitor. SWPW Daily Load Shape and Duck Curve by Hour. Data as of 2026-11-11. Data from U.S. Energy Information Administration. https://worldpowermonitor.com/load-shapes/spp-west/

BibTeX 
@misc{wpm_load_shapes_spp_west_2026,
  title = {{SWPW Daily Load Shape and Duck Curve by Hour}},
  author = {{World Power Monitor}},
  year = {2026},
  note = {Data as of 2026-11-11. Data from U.S. Energy Information Administration.},
  url = {https://worldpowermonitor.com/load-shapes/spp-west/}
}

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