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Data as of 2026-10-27
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Built 2026-10-28 (28 October 2026)

PJM Daily Load Shape and Duck Curve by Hour, 29 September to 27 October 2026

In the 29 complete local days from 29 September to 27 October 2026, electricity demand in PJM averaged 86,905 MW and typically peaked at 19:00 local time (95,409 MW) and bottomed out at 03:00 (76,718 MW). With solar and wind taken off, the remaining load fell to 72,937 MW at 03:00 and then rose 12,192 MW between 15:00 to 18:00. Hours are local clock time (America/New_York).

Key Facts

  • Over 29 complete local days from 29 September to 27 October 2026, average demand in PJM was 86,905 MW. The hour of the day with the highest average demand was 19:00 local time (95,409 MW) and the lowest was 03:00 (76,718 MW).
  • The largest three hour rise in average demand was 3,707 MW, between 14:00 to 17:00 local time.
  • The single highest hour of demand in the 30 day window was 114.3 GW, in the hour starting 1 Oct 2026, 17:00 EDT (UTC-04:00).
  • Solar output averaged 10,197 MW at its 12:00 peak, 12% of average demand.
  • Demand minus solar and wind (net load) averaged 80,389 MW, fell to 72,937 MW at 03:00 and rose 12,192 MW over the three hours from 15:00 to 18:00, 14% of average demand.

Average Day by Local Hour

29 days to 2026-10-27, America/New_York time
PJM average demand and net generation by local hour Average electricity demand in PJM by local clock hour over 29 complete local days from 29 September to 27 October 2026. It was lowest at 03:00 (76,718 MW) and highest at 19:00 (95,409 MW). Net generation is the power produced inside the grid, so it differs from demand by net imports. 0 25,000 50,000 75,000 100,000 00:0003:0006:0009:0012:0015:0018:0021:00
Average electricity demand in PJM by local clock hour over 29 complete local days from 29 September to 27 October 2026. It was lowest at 03:00 (76,718 MW) and highest at 19:00 (95,409 MW). Net generation is the power produced inside the grid, so it differs from demand by net imports.
Mean MW by local hour, 2026-09-29 to 2026-10-27
PJM average demand and net generation by local hour
Local hour (America/New_York)DemandNet generation
00:0080,398 MW80,796 MW
01:0078,608 MW79,275 MW
02:0077,363 MW78,038 MW
03:0076,718 MW77,442 MW
04:0077,206 MW77,782 MW
05:0079,139 MW79,356 MW
06:0083,567 MW82,973 MW
07:0087,115 MW86,260 MW
08:0088,092 MW88,400 MW
09:0088,093 MW88,963 MW
10:0088,409 MW89,260 MW
11:0088,773 MW89,480 MW
12:0089,202 MW89,683 MW
13:0089,828 MW90,373 MW
14:0090,515 MW91,105 MW
15:0091,512 MW92,039 MW
16:0092,784 MW93,016 MW
17:0094,222 MW93,474 MW
18:0094,976 MW94,102 MW
19:0095,409 MW95,086 MW
20:0093,704 MW93,994 MW
21:0090,582 MW91,240 MW
22:0086,518 MW87,271 MW
23:0082,992 MW83,779 MW
PJM duck curve: demand and net load by local hour Average demand and net load (demand minus solar and wind) in PJM by local clock hour over 29 complete local days from 29 September to 27 October 2026. Net load was lowest at 03:00 (72,937 MW) and then rose 12,192 MW between 15:00 to 18:00. 0 25,000 50,000 75,000 100,000 00:0003:0006:0009:0012:0015:0018:0021:00
Average demand and net load (demand minus solar and wind) in PJM by local clock hour over 29 complete local days from 29 September to 27 October 2026. Net load was lowest at 03:00 (72,937 MW) and then rose 12,192 MW between 15:00 to 18:00.
Mean MW by local hour, 2026-09-29 to 2026-10-27
PJM duck curve: demand and net load by local hour
Local hour (America/New_York)DemandNet load (demand minus solar and wind)
00:0080,398 MW76,396 MW
01:0078,608 MW74,629 MW
02:0077,363 MW73,445 MW
03:0076,718 MW72,937 MW
04:0077,206 MW73,587 MW
05:0079,139 MW75,661 MW
06:0083,567 MW80,254 MW
07:0087,115 MW83,828 MW
08:0088,092 MW82,616 MW
09:0088,093 MW78,228 MW
10:0088,409 MW76,604 MW
11:0088,773 MW76,617 MW
12:0089,202 MW76,974 MW
13:0089,828 MW77,601 MW
14:0090,515 MW78,288 MW
15:0091,512 MW79,460 MW
16:0092,784 MW81,719 MW
17:0094,222 MW86,543 MW
18:0094,976 MW91,652 MW
19:0095,409 MW92,874 MW
20:0093,704 MW90,628 MW
21:0090,582 MW87,041 MW
22:0086,518 MW82,694 MW
23:0082,992 MW79,048 MW
PJM average solar and wind output by local hour Average solar and wind generation in PJM by local clock hour over 29 complete local days from 29 September to 27 October 2026. Solar peaked at 12:00 at 10,197 MW. 0 3,000 6,000 9,000 12,000 00:0003:0006:0009:0012:0015:0018:0021:00
Average solar and wind generation in PJM by local clock hour over 29 complete local days from 29 September to 27 October 2026. Solar peaked at 12:00 at 10,197 MW.
Mean MW by local hour, 2026-09-29 to 2026-10-27
PJM average solar and wind output by local hour
Local hour (America/New_York)SolarWind
00:0034 MW3,969 MW
01:0033 MW3,946 MW
02:0033 MW3,885 MW
03:0033 MW3,748 MW
04:0033 MW3,586 MW
05:0032 MW3,446 MW
06:0032 MW3,281 MW
07:00112 MW3,175 MW
08:002,365 MW3,112 MW
09:007,185 MW2,680 MW
10:009,662 MW2,144 MW
11:0010,139 MW2,017 MW
12:0010,197 MW2,031 MW
13:0010,168 MW2,058 MW
14:0010,071 MW2,155 MW
15:009,806 MW2,247 MW
16:008,771 MW2,294 MW
17:005,379 MW2,300 MW
18:001,049 MW2,275 MW
19:0052 MW2,483 MW
20:0035 MW3,041 MW
21:0035 MW3,505 MW
22:0034 MW3,790 MW
23:0033 MW3,912 MW
Average PJM demand, net generation, solar, wind and net load by local hour
Local hourDemandNet generationSolarWindNet load
00:00 80,398 MW 80,796 MW 34 MW 3,969 MW 76,396 MW
01:00 78,608 MW 79,275 MW 33 MW 3,946 MW 74,629 MW
02:00 77,363 MW 78,038 MW 33 MW 3,885 MW 73,445 MW
03:00 76,718 MW 77,442 MW 33 MW 3,748 MW 72,937 MW
04:00 77,206 MW 77,782 MW 33 MW 3,586 MW 73,587 MW
05:00 79,139 MW 79,356 MW 32 MW 3,446 MW 75,661 MW
06:00 83,567 MW 82,973 MW 32 MW 3,281 MW 80,254 MW
07:00 87,115 MW 86,260 MW 112 MW 3,175 MW 83,828 MW
08:00 88,092 MW 88,400 MW 2,365 MW 3,112 MW 82,616 MW
09:00 88,093 MW 88,963 MW 7,185 MW 2,680 MW 78,228 MW
10:00 88,409 MW 89,260 MW 9,662 MW 2,144 MW 76,604 MW
11:00 88,773 MW 89,480 MW 10,139 MW 2,017 MW 76,617 MW
12:00 89,202 MW 89,683 MW 10,197 MW 2,031 MW 76,974 MW
13:00 89,828 MW 90,373 MW 10,168 MW 2,058 MW 77,601 MW
14:00 90,515 MW 91,105 MW 10,071 MW 2,155 MW 78,288 MW
15:00 91,512 MW 92,039 MW 9,806 MW 2,247 MW 79,460 MW
16:00 92,784 MW 93,016 MW 8,771 MW 2,294 MW 81,719 MW
17:00 94,222 MW 93,474 MW 5,379 MW 2,300 MW 86,543 MW
18:00 94,976 MW 94,102 MW 1,049 MW 2,275 MW 91,652 MW
19:00 95,409 MW 95,086 MW 52 MW 2,483 MW 92,874 MW
20:00 93,704 MW 93,994 MW 35 MW 3,041 MW 90,628 MW
21:00 90,582 MW 91,240 MW 35 MW 3,505 MW 87,041 MW
22:00 86,518 MW 87,271 MW 34 MW 3,790 MW 82,694 MW
23:00 82,992 MW 83,779 MW 33 MW 3,912 MW 79,048 MW

Each value is the mean over 29 complete local days from 29 September to 27 October 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 114.3 GW; 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 2026-10-27. Profiles are computed by World Power Monitor from the operator's hourly series.

Assumptions

  • Hours are local clock time in America/New_York. 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). PJM Daily Load Shape and Duck Curve by Hour. https://worldpowermonitor.com/load-shapes/pjm/

Plain text

World Power Monitor. PJM Daily Load Shape and Duck Curve by Hour. Data as of 2026-10-27. Data from U.S. Energy Information Administration. https://worldpowermonitor.com/load-shapes/pjm/

BibTeX 
@misc{wpm_load_shapes_pjm_2026,
  title = {{PJM Daily Load Shape and Duck Curve by Hour}},
  author = {{World Power Monitor}},
  year = {2026},
  note = {Data as of 2026-10-27. Data from U.S. Energy Information Administration.},
  url = {https://worldpowermonitor.com/load-shapes/pjm/}
}

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