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

SPP 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 SPP averaged 30,912 MW and typically peaked at 17:00 local time (33,349 MW) and bottomed out at 03:00 (27,445 MW). With solar and wind taken off, the remaining load fell to 13,612 MW at 00:00 and then rose 1,859 MW between 14:00 to 17:00. Hours are local clock time (America/Chicago).

Key Facts

  • Over 29 complete local days from 14 October to 11 November 2026, average demand in SPP was 30,912 MW. The hour of the day with the highest average demand was 17:00 local time (33,349 MW) and the lowest was 03:00 (27,445 MW).
  • The largest three hour rise in average demand was 531 MW, between 14:00 to 17:00 local time.
  • The single highest hour of demand in the 30 day window was 44,456 MW, in the hour starting 13 Oct 2026, 16:00 CDT (UTC-05:00).
  • Solar output averaged 1,942 MW at its 14:00 peak, 6% of average demand.
  • Demand minus solar and wind (net load) averaged 17,357 MW, fell to 13,612 MW at 00:00 and rose 1,859 MW over the three hours from 14:00 to 17:00, 6% of average demand.

Average Day by Local Hour

29 days to 2026-11-11, America/Chicago time
SPP average demand and net generation by local hour Average electricity demand in SPP by local clock hour over 29 complete local days from 14 October to 11 November 2026. It was lowest at 03:00 (27,445 MW) and highest at 17:00 (33,349 MW). Net generation is the power produced inside the grid, so it differs from demand by net imports. 0 10,000 20,000 30,000 40,000 00:0003:0006:0009:0012:0015:0018:0021:00
Average electricity demand in SPP by local clock hour over 29 complete local days from 14 October to 11 November 2026. It was lowest at 03:00 (27,445 MW) and highest at 17:00 (33,349 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
SPP average demand and net generation by local hour
Local hour (America/Chicago)DemandNet generation
00:0028,497 MW29,472 MW
01:0027,880 MW28,856 MW
02:0027,568 MW28,524 MW
03:0027,445 MW28,391 MW
04:0027,653 MW28,532 MW
05:0028,436 MW29,399 MW
06:0029,905 MW30,790 MW
07:0030,943 MW31,613 MW
08:0031,281 MW31,447 MW
09:0031,474 MW31,106 MW
10:0031,734 MW31,206 MW
11:0032,007 MW31,550 MW
12:0032,293 MW31,837 MW
13:0032,622 MW32,222 MW
14:0032,818 MW32,524 MW
15:0032,992 MW32,831 MW
16:0033,192 MW33,249 MW
17:0033,349 MW33,646 MW
18:0033,256 MW33,966 MW
19:0033,026 MW33,981 MW
20:0032,413 MW33,256 MW
21:0031,535 MW32,430 MW
22:0030,375 MW31,318 MW
23:0029,202 MW30,178 MW
SPP duck curve: demand and net load by local hour Average demand and net load (demand minus solar and wind) in SPP by local clock hour over 29 complete local days from 14 October to 11 November 2026. Net load was lowest at 00:00 (13,612 MW) and then rose 1,859 MW between 14:00 to 17:00. 0 10,000 20,000 30,000 40,000 00:0003:0006:0009:0012:0015:0018:0021:00
Average demand and net load (demand minus solar and wind) in SPP by local clock hour over 29 complete local days from 14 October to 11 November 2026. Net load was lowest at 00:00 (13,612 MW) and then rose 1,859 MW between 14:00 to 17:00.
Mean MW by local hour, 2026-10-14 to 2026-11-11
SPP duck curve: demand and net load by local hour
Local hour (America/Chicago)DemandNet load (demand minus solar and wind)
00:0028,497 MW13,612 MW
01:0027,880 MW13,762 MW
02:0027,568 MW13,824 MW
03:0027,445 MW14,141 MW
04:0027,653 MW14,580 MW
05:0028,436 MW15,512 MW
06:0029,905 MW16,912 MW
07:0030,943 MW17,867 MW
08:0031,281 MW18,030 MW
09:0031,474 MW18,908 MW
10:0031,734 MW19,628 MW
11:0032,007 MW19,425 MW
12:0032,293 MW19,121 MW
13:0032,622 MW18,955 MW
14:0032,818 MW18,951 MW
15:0032,992 MW19,208 MW
16:0033,192 MW19,963 MW
17:0033,349 MW20,810 MW
18:0033,256 MW20,769 MW
19:0033,026 MW19,266 MW
20:0032,413 MW17,689 MW
21:0031,535 MW16,398 MW
22:0030,375 MW15,242 MW
23:0029,202 MW14,008 MW
SPP average solar and wind output by local hour Average solar and wind generation in SPP by local clock hour over 29 complete local days from 14 October to 11 November 2026. Solar peaked at 14:00 at 1,942 MW. 0 5,000 10,000 15,000 20,000 00:0003:0006:0009:0012:0015:0018:0021:00
Average solar and wind generation in SPP by local clock hour over 29 complete local days from 14 October to 11 November 2026. Solar peaked at 14:00 at 1,942 MW.
Mean MW by local hour, 2026-10-14 to 2026-11-11
SPP average solar and wind output by local hour
Local hour (America/Chicago)SolarWind
00:000 MW14,886 MW
01:000 MW14,118 MW
02:000 MW13,744 MW
03:000 MW13,303 MW
04:000 MW13,073 MW
05:000 MW12,924 MW
06:000 MW12,992 MW
07:0096 MW12,980 MW
08:00780 MW12,471 MW
09:001,583 MW10,984 MW
10:001,848 MW10,258 MW
11:001,915 MW10,668 MW
12:001,931 MW11,241 MW
13:001,933 MW11,734 MW
14:001,942 MW11,925 MW
15:001,846 MW11,938 MW
16:001,411 MW11,819 MW
17:00696 MW11,843 MW
18:00124 MW12,362 MW
19:001 MW13,760 MW
20:000 MW14,724 MW
21:000 MW15,138 MW
22:000 MW15,133 MW
23:000 MW15,194 MW
Average SPP demand, net generation, solar, wind and net load by local hour
Local hourDemandNet generationSolarWindNet load
00:00 28,497 MW 29,472 MW 0 MW 14,886 MW 13,612 MW
01:00 27,880 MW 28,856 MW 0 MW 14,118 MW 13,762 MW
02:00 27,568 MW 28,524 MW 0 MW 13,744 MW 13,824 MW
03:00 27,445 MW 28,391 MW 0 MW 13,303 MW 14,141 MW
04:00 27,653 MW 28,532 MW 0 MW 13,073 MW 14,580 MW
05:00 28,436 MW 29,399 MW 0 MW 12,924 MW 15,512 MW
06:00 29,905 MW 30,790 MW 0 MW 12,992 MW 16,912 MW
07:00 30,943 MW 31,613 MW 96 MW 12,980 MW 17,867 MW
08:00 31,281 MW 31,447 MW 780 MW 12,471 MW 18,030 MW
09:00 31,474 MW 31,106 MW 1,583 MW 10,984 MW 18,908 MW
10:00 31,734 MW 31,206 MW 1,848 MW 10,258 MW 19,628 MW
11:00 32,007 MW 31,550 MW 1,915 MW 10,668 MW 19,425 MW
12:00 32,293 MW 31,837 MW 1,931 MW 11,241 MW 19,121 MW
13:00 32,622 MW 32,222 MW 1,933 MW 11,734 MW 18,955 MW
14:00 32,818 MW 32,524 MW 1,942 MW 11,925 MW 18,951 MW
15:00 32,992 MW 32,831 MW 1,846 MW 11,938 MW 19,208 MW
16:00 33,192 MW 33,249 MW 1,411 MW 11,819 MW 19,963 MW
17:00 33,349 MW 33,646 MW 696 MW 11,843 MW 20,810 MW
18:00 33,256 MW 33,966 MW 124 MW 12,362 MW 20,769 MW
19:00 33,026 MW 33,981 MW 1 MW 13,760 MW 19,266 MW
20:00 32,413 MW 33,256 MW 0 MW 14,724 MW 17,689 MW
21:00 31,535 MW 32,430 MW 0 MW 15,138 MW 16,398 MW
22:00 30,375 MW 31,318 MW 0 MW 15,133 MW 15,242 MW
23:00 29,202 MW 30,178 MW 0 MW 15,194 MW 14,008 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 44,456 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). SPP Daily Load Shape and Duck Curve by Hour. https://worldpowermonitor.com/load-shapes/spp/

Plain text

World Power Monitor. SPP 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/

BibTeX 
@misc{wpm_load_shapes_spp_2026,
  title = {{SPP 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/}
}

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