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Data as of 2026-11-04
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Built 2026-11-05 (5 November 2026)

SWPW Daily Load Shape and Duck Curve by Hour, 7 October to 4 November 2026

In the 29 complete local days from 7 October to 4 November 2026, electricity demand in SWPW averaged 2,672 MW and typically peaked at 19:00 local time (2,969 MW) and bottomed out at 04:00 (2,380 MW). With solar and wind taken off, the remaining load fell to 1,802 MW at 12:00 and then rose 533 MW between 16:00 to 19:00. Hours are local clock time (America/Chicago).

Key Facts

  • Over 29 complete local days from 7 October to 4 November 2026, average demand in SWPW was 2,672 MW. The hour of the day with the highest average demand was 19:00 local time (2,969 MW) and the lowest was 04:00 (2,380 MW).
  • The largest three hour rise in average demand was 193 MW, between 15:00 to 18:00 local time.
  • The single highest hour of demand in the 30 day window was 3,344 MW, in the hour starting 6 Oct 2026, 17:00 CDT (UTC-05:00).
  • Solar output averaged 540 MW at its 13:00 peak, 20% of average demand.
  • Demand minus solar and wind (net load) averaged 2,087 MW, fell to 1,802 MW at 12:00 and rose 533 MW over the three hours from 16:00 to 19:00, 20% of average demand.

Average Day by Local Hour

29 days to 2026-11-04, 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 7 October to 4 November 2026. It was lowest at 04:00 (2,380 MW) and highest at 19:00 (2,969 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 7 October to 4 November 2026. It was lowest at 04:00 (2,380 MW) and highest at 19:00 (2,969 MW). Net generation is the power produced inside the grid, so it differs from demand by net imports.
Mean MW by local hour, 2026-10-07 to 2026-11-04
SWPW average demand and net generation by local hour
Local hour (America/Chicago)DemandNet generation
00:002,553 MW2,494 MW
01:002,468 MW2,359 MW
02:002,416 MW2,295 MW
03:002,388 MW2,272 MW
04:002,380 MW2,278 MW
05:002,407 MW2,313 MW
06:002,491 MW2,383 MW
07:002,633 MW2,502 MW
08:002,714 MW2,564 MW
09:002,714 MW2,589 MW
10:002,690 MW2,556 MW
11:002,675 MW2,548 MW
12:002,667 MW2,540 MW
13:002,679 MW2,569 MW
14:002,702 MW2,580 MW
15:002,738 MW2,590 MW
16:002,784 MW2,656 MW
17:002,855 MW2,726 MW
18:002,931 MW2,766 MW
19:002,969 MW2,808 MW
20:002,943 MW2,804 MW
21:002,870 MW2,730 MW
22:002,789 MW2,642 MW
23:002,668 MW2,536 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 7 October to 4 November 2026. Net load was lowest at 12:00 (1,802 MW) and then rose 533 MW between 16:00 to 19:00. 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 7 October to 4 November 2026. Net load was lowest at 12:00 (1,802 MW) and then rose 533 MW between 16:00 to 19:00.
Mean MW by local hour, 2026-10-07 to 2026-11-04
SWPW duck curve: demand and net load by local hour
Local hour (America/Chicago)DemandNet load (demand minus solar and wind)
00:002,553 MW2,067 MW
01:002,468 MW2,023 MW
02:002,416 MW1,972 MW
03:002,388 MW1,942 MW
04:002,380 MW1,944 MW
05:002,407 MW1,985 MW
06:002,491 MW2,068 MW
07:002,633 MW2,213 MW
08:002,714 MW2,255 MW
09:002,714 MW2,056 MW
10:002,690 MW1,905 MW
11:002,675 MW1,822 MW
12:002,667 MW1,802 MW
13:002,679 MW1,814 MW
14:002,702 MW1,869 MW
15:002,738 MW1,924 MW
16:002,784 MW2,012 MW
17:002,855 MW2,189 MW
18:002,931 MW2,452 MW
19:002,969 MW2,545 MW
20:002,943 MW2,453 MW
21:002,870 MW2,348 MW
22:002,789 MW2,267 MW
23:002,668 MW2,162 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 7 October to 4 November 2026. Solar peaked at 13:00 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 7 October to 4 November 2026. Solar peaked at 13:00 at 540 MW.
Mean MW by local hour, 2026-10-07 to 2026-11-04
SWPW average solar and wind output by local hour
Local hour (America/Chicago)SolarWind
00:000 MW486 MW
01:000 MW445 MW
02:000 MW444 MW
03:000 MW446 MW
04:000 MW437 MW
05:000 MW421 MW
06:000 MW423 MW
07:000 MW419 MW
08:0040 MW420 MW
09:00271 MW387 MW
10:00443 MW342 MW
11:00517 MW335 MW
12:00539 MW326 MW
13:00540 MW325 MW
14:00515 MW319 MW
15:00493 MW321 MW
16:00446 MW327 MW
17:00341 MW324 MW
18:00131 MW348 MW
19:005 MW419 MW
20:001 MW488 MW
21:001 MW521 MW
22:000 MW521 MW
23:000 MW506 MW
Average SWPW demand, net generation, solar, wind and net load by local hour
Local hourDemandNet generationSolarWindNet load
00:00 2,553 MW 2,494 MW 0 MW 486 MW 2,067 MW
01:00 2,468 MW 2,359 MW 0 MW 445 MW 2,023 MW
02:00 2,416 MW 2,295 MW 0 MW 444 MW 1,972 MW
03:00 2,388 MW 2,272 MW 0 MW 446 MW 1,942 MW
04:00 2,380 MW 2,278 MW 0 MW 437 MW 1,944 MW
05:00 2,407 MW 2,313 MW 0 MW 421 MW 1,985 MW
06:00 2,491 MW 2,383 MW 0 MW 423 MW 2,068 MW
07:00 2,633 MW 2,502 MW 0 MW 419 MW 2,213 MW
08:00 2,714 MW 2,564 MW 40 MW 420 MW 2,255 MW
09:00 2,714 MW 2,589 MW 271 MW 387 MW 2,056 MW
10:00 2,690 MW 2,556 MW 443 MW 342 MW 1,905 MW
11:00 2,675 MW 2,548 MW 517 MW 335 MW 1,822 MW
12:00 2,667 MW 2,540 MW 539 MW 326 MW 1,802 MW
13:00 2,679 MW 2,569 MW 540 MW 325 MW 1,814 MW
14:00 2,702 MW 2,580 MW 515 MW 319 MW 1,869 MW
15:00 2,738 MW 2,590 MW 493 MW 321 MW 1,924 MW
16:00 2,784 MW 2,656 MW 446 MW 327 MW 2,012 MW
17:00 2,855 MW 2,726 MW 341 MW 324 MW 2,189 MW
18:00 2,931 MW 2,766 MW 131 MW 348 MW 2,452 MW
19:00 2,969 MW 2,808 MW 5 MW 419 MW 2,545 MW
20:00 2,943 MW 2,804 MW 1 MW 488 MW 2,453 MW
21:00 2,870 MW 2,730 MW 1 MW 521 MW 2,348 MW
22:00 2,789 MW 2,642 MW 0 MW 521 MW 2,267 MW
23:00 2,668 MW 2,536 MW 0 MW 506 MW 2,162 MW

Each value is the mean over 29 complete local days from 7 October to 4 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 3,344 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 2026-11-04. 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 2026-11-04. 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 2026-11-04. Data from U.S. Energy Information Administration.},
  url = {https://worldpowermonitor.com/load-shapes/spp-west/}
}

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