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

ISO-NE 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 ISO-NE averaged 11,408 MW and typically peaked at 18:00 local time (13,968 MW) and bottomed out at 12:00 (9,847 MW). With solar and wind taken off, the remaining load fell to 8,000 MW at 12:00 and then rose 3,563 MW between 14:00 to 17:00. Hours are local clock time (America/New_York).

Key Facts

  • Over 29 complete local days from 7 October to 4 November 2026, average demand in ISO-NE was 11,408 MW. The hour of the day with the highest average demand was 18:00 local time (13,968 MW) and the lowest was 12:00 (9,847 MW).
  • The largest three hour rise in average demand was 3,091 MW, between 14:00 to 17:00 local time.
  • The single highest hour of demand in the 30 day window was 14,849 MW, in the hour starting 14 Oct 2026, 18:00 EDT (UTC-04:00).
  • Solar output averaged 850 MW at its 12:00 peak, 7% of average demand.
  • Demand minus solar and wind (net load) averaged 9,922 MW, fell to 8,000 MW at 12:00 and rose 3,563 MW over the three hours from 14:00 to 17:00, 31% of average demand.

Average Day by Local Hour

29 days to 2026-11-04, America/New_York time
ISO-NE average demand and net generation by local hour Average electricity demand in ISO-NE by local clock hour over 29 complete local days from 7 October to 4 November 2026. It was lowest at 12:00 (9,847 MW) and highest at 18:00 (13,968 MW). Net generation is the power produced inside the grid, so it differs from demand by net imports. 0 3,750 7,500 11,250 15,000 00:0003:0006:0009:0012:0015:0018:0021:00
Average electricity demand in ISO-NE by local clock hour over 29 complete local days from 7 October to 4 November 2026. It was lowest at 12:00 (9,847 MW) and highest at 18:00 (13,968 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
ISO-NE average demand and net generation by local hour
Local hour (America/New_York)DemandNet generation
00:0010,692 MW10,342 MW
01:0010,468 MW10,091 MW
02:0010,386 MW9,917 MW
03:0010,383 MW9,904 MW
04:0010,476 MW10,040 MW
05:0010,883 MW10,490 MW
06:0011,820 MW11,416 MW
07:0012,396 MW12,046 MW
08:0011,870 MW11,624 MW
09:0010,903 MW10,788 MW
10:0010,278 MW10,450 MW
11:009,906 MW10,209 MW
12:009,847 MW10,220 MW
13:0010,000 MW10,342 MW
14:0010,379 MW10,593 MW
15:0011,067 MW11,170 MW
16:0012,225 MW12,195 MW
17:0013,470 MW13,461 MW
18:0013,968 MW13,911 MW
19:0013,746 MW13,542 MW
20:0013,263 MW12,871 MW
21:0012,575 MW12,216 MW
22:0011,735 MW11,331 MW
23:0011,068 MW10,725 MW
ISO-NE duck curve: demand and net load by local hour Average demand and net load (demand minus solar and wind) in ISO-NE by local clock hour over 29 complete local days from 7 October to 4 November 2026. Net load was lowest at 12:00 (8,000 MW) and then rose 3,563 MW between 14:00 to 17:00. 0 3,750 7,500 11,250 15,000 00:0003:0006:0009:0012:0015:0018:0021:00
Average demand and net load (demand minus solar and wind) in ISO-NE by local clock hour over 29 complete local days from 7 October to 4 November 2026. Net load was lowest at 12:00 (8,000 MW) and then rose 3,563 MW between 14:00 to 17:00.
Mean MW by local hour, 2026-10-07 to 2026-11-04
ISO-NE duck curve: demand and net load by local hour
Local hour (America/New_York)DemandNet load (demand minus solar and wind)
00:0010,692 MW9,317 MW
01:0010,468 MW9,121 MW
02:0010,386 MW9,029 MW
03:0010,383 MW9,014 MW
04:0010,476 MW9,111 MW
05:0010,883 MW9,534 MW
06:0011,820 MW10,498 MW
07:0012,396 MW11,056 MW
08:0011,870 MW10,362 MW
09:0010,903 MW9,187 MW
10:0010,278 MW8,465 MW
11:009,906 MW8,069 MW
12:009,847 MW8,000 MW
13:0010,000 MW8,151 MW
14:0010,379 MW8,604 MW
15:0011,067 MW9,496 MW
16:0012,225 MW10,830 MW
17:0013,470 MW12,167 MW
18:0013,968 MW12,628 MW
19:0013,746 MW12,343 MW
20:0013,263 MW11,870 MW
21:0012,575 MW11,207 MW
22:0011,735 MW10,387 MW
23:0011,068 MW9,691 MW
ISO-NE average solar and wind output by local hour Average solar and wind generation in ISO-NE by local clock hour over 29 complete local days from 7 October to 4 November 2026. Solar peaked at 12:00 at 850 MW. 0 375 750 1,125 1,500 00:0003:0006:0009:0012:0015:0018:0021:00
Average solar and wind generation in ISO-NE by local clock hour over 29 complete local days from 7 October to 4 November 2026. Solar peaked at 12:00 at 850 MW.
Mean MW by local hour, 2026-10-07 to 2026-11-04
ISO-NE average solar and wind output by local hour
Local hour (America/New_York)SolarWind
00:001 MW1,374 MW
01:001 MW1,346 MW
02:001 MW1,356 MW
03:001 MW1,367 MW
04:001 MW1,364 MW
05:001 MW1,348 MW
06:003 MW1,319 MW
07:0056 MW1,283 MW
08:00297 MW1,211 MW
09:00581 MW1,135 MW
10:00754 MW1,060 MW
11:00833 MW1,005 MW
12:00850 MW997 MW
13:00804 MW1,044 MW
14:00719 MW1,056 MW
15:00529 MW1,041 MW
16:00294 MW1,101 MW
17:00106 MW1,197 MW
18:0057 MW1,282 MW
19:0029 MW1,373 MW
20:003 MW1,390 MW
21:002 MW1,366 MW
22:002 MW1,347 MW
23:002 MW1,375 MW
Average ISO-NE demand, net generation, solar, wind and net load by local hour
Local hourDemandNet generationSolarWindNet load
00:00 10,692 MW 10,342 MW 1 MW 1,374 MW 9,317 MW
01:00 10,468 MW 10,091 MW 1 MW 1,346 MW 9,121 MW
02:00 10,386 MW 9,917 MW 1 MW 1,356 MW 9,029 MW
03:00 10,383 MW 9,904 MW 1 MW 1,367 MW 9,014 MW
04:00 10,476 MW 10,040 MW 1 MW 1,364 MW 9,111 MW
05:00 10,883 MW 10,490 MW 1 MW 1,348 MW 9,534 MW
06:00 11,820 MW 11,416 MW 3 MW 1,319 MW 10,498 MW
07:00 12,396 MW 12,046 MW 56 MW 1,283 MW 11,056 MW
08:00 11,870 MW 11,624 MW 297 MW 1,211 MW 10,362 MW
09:00 10,903 MW 10,788 MW 581 MW 1,135 MW 9,187 MW
10:00 10,278 MW 10,450 MW 754 MW 1,060 MW 8,465 MW
11:00 9,906 MW 10,209 MW 833 MW 1,005 MW 8,069 MW
12:00 9,847 MW 10,220 MW 850 MW 997 MW 8,000 MW
13:00 10,000 MW 10,342 MW 804 MW 1,044 MW 8,151 MW
14:00 10,379 MW 10,593 MW 719 MW 1,056 MW 8,604 MW
15:00 11,067 MW 11,170 MW 529 MW 1,041 MW 9,496 MW
16:00 12,225 MW 12,195 MW 294 MW 1,101 MW 10,830 MW
17:00 13,470 MW 13,461 MW 106 MW 1,197 MW 12,167 MW
18:00 13,968 MW 13,911 MW 57 MW 1,282 MW 12,628 MW
19:00 13,746 MW 13,542 MW 29 MW 1,373 MW 12,343 MW
20:00 13,263 MW 12,871 MW 3 MW 1,390 MW 11,870 MW
21:00 12,575 MW 12,216 MW 2 MW 1,366 MW 11,207 MW
22:00 11,735 MW 11,331 MW 2 MW 1,347 MW 10,387 MW
23:00 11,068 MW 10,725 MW 2 MW 1,375 MW 9,691 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 14,849 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/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). ISO-NE Daily Load Shape and Duck Curve by Hour. https://worldpowermonitor.com/load-shapes/iso-ne/

Plain text

World Power Monitor. ISO-NE 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/iso-ne/

BibTeX 
@misc{wpm_load_shapes_iso_ne_2026,
  title = {{ISO-NE 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/iso-ne/}
}

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