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

SPP 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 SPP averaged 31,977 MW and typically peaked at 16:00 local time (35,850 MW) and bottomed out at 03:00 (27,606 MW). With solar and wind taken off, the remaining load fell to 12,665 MW at 02:00 and then rose 1,077 MW between 14:00 to 17:00. Hours are local clock time (America/Chicago).

Key Facts

  • Over 29 complete local days from 7 October to 4 November 2026, average demand in SPP was 31,977 MW. The hour of the day with the highest average demand was 16:00 local time (35,850 MW) and the lowest was 03:00 (27,606 MW).
  • The largest three hour rise in average demand was 680 MW, between 14:00 to 17:00 local time.
  • The single highest hour of demand in the 30 day window was 45,166 MW, in the hour starting 12 Oct 2026, 16:00 CDT (UTC-05:00).
  • Solar output averaged 2,004 MW at its 12:00 peak, 6% of average demand.
  • Demand minus solar and wind (net load) averaged 16,942 MW, fell to 12,665 MW at 02:00 and rose 1,077 MW over the three hours from 14:00 to 17:00, 3% of average demand.

Average Day by Local Hour

29 days to 2026-11-04, 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 7 October to 4 November 2026. It was lowest at 03:00 (27,606 MW) and highest at 16:00 (35,850 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 7 October to 4 November 2026. It was lowest at 03:00 (27,606 MW) and highest at 16:00 (35,850 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
SPP average demand and net generation by local hour
Local hour (America/Chicago)DemandNet generation
00:0029,053 MW30,112 MW
01:0028,260 MW29,315 MW
02:0027,833 MW28,864 MW
03:0027,606 MW28,636 MW
04:0027,718 MW28,708 MW
05:0028,403 MW29,514 MW
06:0029,789 MW30,859 MW
07:0030,834 MW31,765 MW
08:0031,290 MW31,751 MW
09:0031,768 MW31,669 MW
10:0032,411 MW32,148 MW
11:0033,103 MW32,820 MW
12:0033,825 MW33,485 MW
13:0034,578 MW34,247 MW
14:0035,136 MW34,902 MW
15:0035,565 MW35,363 MW
16:0035,850 MW35,895 MW
17:0035,816 MW36,280 MW
18:0035,340 MW36,203 MW
19:0034,861 MW36,049 MW
20:0033,978 MW35,090 MW
21:0032,856 MW33,931 MW
22:0031,470 MW32,587 MW
23:0030,103 MW31,164 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 7 October to 4 November 2026. Net load was lowest at 02:00 (12,665 MW) and then rose 1,077 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 7 October to 4 November 2026. Net load was lowest at 02:00 (12,665 MW) and then rose 1,077 MW between 14:00 to 17:00.
Mean MW by local hour, 2026-10-07 to 2026-11-04
SPP duck curve: demand and net load by local hour
Local hour (America/Chicago)DemandNet load (demand minus solar and wind)
00:0029,053 MW12,727 MW
01:0028,260 MW12,763 MW
02:0027,833 MW12,665 MW
03:0027,606 MW12,878 MW
04:0027,718 MW13,330 MW
05:0028,403 MW14,254 MW
06:0029,789 MW15,712 MW
07:0030,834 MW16,808 MW
08:0031,290 MW17,086 MW
09:0031,768 MW17,999 MW
10:0032,411 MW18,993 MW
11:0033,103 MW19,168 MW
12:0033,825 MW19,311 MW
13:0034,578 MW19,581 MW
14:0035,136 MW19,888 MW
15:0035,565 MW20,153 MW
16:0035,850 MW20,439 MW
17:0035,816 MW20,965 MW
18:0035,340 MW21,153 MW
19:0034,861 MW19,475 MW
20:0033,978 MW17,497 MW
21:0032,856 MW15,852 MW
22:0031,470 MW14,460 MW
23:0030,103 MW13,439 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 7 October to 4 November 2026. Solar peaked at 12:00 at 2,004 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 7 October to 4 November 2026. Solar peaked at 12:00 at 2,004 MW.
Mean MW by local hour, 2026-10-07 to 2026-11-04
SPP average solar and wind output by local hour
Local hour (America/Chicago)SolarWind
00:000 MW16,326 MW
01:000 MW15,498 MW
02:000 MW15,168 MW
03:000 MW14,729 MW
04:000 MW14,388 MW
05:000 MW14,149 MW
06:000 MW14,077 MW
07:0044 MW13,981 MW
08:00615 MW13,589 MW
09:001,568 MW12,202 MW
10:001,910 MW11,508 MW
11:001,995 MW11,941 MW
12:002,004 MW12,510 MW
13:002,001 MW12,996 MW
14:002,004 MW13,244 MW
15:001,951 MW13,461 MW
16:001,739 MW13,672 MW
17:001,108 MW13,743 MW
18:00243 MW13,944 MW
19:002 MW15,385 MW
20:000 MW16,481 MW
21:000 MW17,003 MW
22:000 MW17,010 MW
23:000 MW16,665 MW
Average SPP demand, net generation, solar, wind and net load by local hour
Local hourDemandNet generationSolarWindNet load
00:00 29,053 MW 30,112 MW 0 MW 16,326 MW 12,727 MW
01:00 28,260 MW 29,315 MW 0 MW 15,498 MW 12,763 MW
02:00 27,833 MW 28,864 MW 0 MW 15,168 MW 12,665 MW
03:00 27,606 MW 28,636 MW 0 MW 14,729 MW 12,878 MW
04:00 27,718 MW 28,708 MW 0 MW 14,388 MW 13,330 MW
05:00 28,403 MW 29,514 MW 0 MW 14,149 MW 14,254 MW
06:00 29,789 MW 30,859 MW 0 MW 14,077 MW 15,712 MW
07:00 30,834 MW 31,765 MW 44 MW 13,981 MW 16,808 MW
08:00 31,290 MW 31,751 MW 615 MW 13,589 MW 17,086 MW
09:00 31,768 MW 31,669 MW 1,568 MW 12,202 MW 17,999 MW
10:00 32,411 MW 32,148 MW 1,910 MW 11,508 MW 18,993 MW
11:00 33,103 MW 32,820 MW 1,995 MW 11,941 MW 19,168 MW
12:00 33,825 MW 33,485 MW 2,004 MW 12,510 MW 19,311 MW
13:00 34,578 MW 34,247 MW 2,001 MW 12,996 MW 19,581 MW
14:00 35,136 MW 34,902 MW 2,004 MW 13,244 MW 19,888 MW
15:00 35,565 MW 35,363 MW 1,951 MW 13,461 MW 20,153 MW
16:00 35,850 MW 35,895 MW 1,739 MW 13,672 MW 20,439 MW
17:00 35,816 MW 36,280 MW 1,108 MW 13,743 MW 20,965 MW
18:00 35,340 MW 36,203 MW 243 MW 13,944 MW 21,153 MW
19:00 34,861 MW 36,049 MW 2 MW 15,385 MW 19,475 MW
20:00 33,978 MW 35,090 MW 0 MW 16,481 MW 17,497 MW
21:00 32,856 MW 33,931 MW 0 MW 17,003 MW 15,852 MW
22:00 31,470 MW 32,587 MW 0 MW 17,010 MW 14,460 MW
23:00 30,103 MW 31,164 MW 0 MW 16,665 MW 13,439 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 45,166 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). 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 2026-11-04. 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 2026-11-04. Data from U.S. Energy Information Administration.},
  url = {https://worldpowermonitor.com/load-shapes/spp/}
}

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