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

PSEI Daily Electricity Demand by Hour of Day, 29 September to 27 October 2026

In the 29 complete local days from 29 September to 27 October 2026, electricity demand in PSEI averaged 2,586 MW and typically peaked at 19:00 local time (2,932 MW) and bottomed out at 03:00 (2,061 MW). Hours are local clock time (America/Los_Angeles).

Key Facts

  • Over 29 complete local days from 29 September to 27 October 2026, average demand in PSEI was 2,586 MW. The hour of the day with the highest average demand was 19:00 local time (2,932 MW) and the lowest was 03:00 (2,061 MW).
  • The largest three hour rise in average demand was 241 MW, between 15:00 to 18:00 local time.
  • The single highest hour of demand in the 30 day window was 3,312 MW, in the hour starting 12 Oct 2026, 08:00 PDT (UTC-07:00).

Average Day by Local Hour

29 days to 2026-10-27, America/Los_Angeles time
PSEI average demand and net generation by local hour Average electricity demand in PSEI by local clock hour over 29 complete local days from 29 September to 27 October 2026. It was lowest at 03:00 (2,061 MW) and highest at 19:00 (2,932 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 PSEI by local clock hour over 29 complete local days from 29 September to 27 October 2026. It was lowest at 03:00 (2,061 MW) and highest at 19:00 (2,932 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
PSEI average demand and net generation by local hour
Local hour (America/Los_Angeles)DemandNet generation
00:002,205 MW401 MW
01:002,112 MW402 MW
02:002,062 MW402 MW
03:002,061 MW409 MW
04:002,132 MW403 MW
05:002,311 MW434 MW
06:002,583 MW458 MW
07:002,786 MW462 MW
08:002,857 MW452 MW
09:002,858 MW425 MW
10:002,815 MW416 MW
11:002,765 MW399 MW
12:002,719 MW399 MW
13:002,672 MW403 MW
14:002,647 MW402 MW
15:002,662 MW407 MW
16:002,724 MW434 MW
17:002,821 MW461 MW
18:002,903 MW469 MW
19:002,932 MW465 MW
20:002,858 MW464 MW
21:002,719 MW460 MW
22:002,523 MW452 MW
23:002,338 MW428 MW
PSEI average wind output by local hour Average wind generation in PSEI by local clock hour over 29 complete local days from 29 September to 27 October 2026. 0 38 75 113 150 00:0003:0006:0009:0012:0015:0018:0021:00
Average wind generation in PSEI by local clock hour over 29 complete local days from 29 September to 27 October 2026.
Mean MW by local hour, 2026-09-29 to 2026-10-27
PSEI average wind output by local hour
Local hour (America/Los_Angeles)Wind
00:00126 MW
01:00129 MW
02:00132 MW
03:00136 MW
04:00128 MW
05:00124 MW
06:00122 MW
07:00117 MW
08:00107 MW
09:0097 MW
10:0090 MW
11:0084 MW
12:0084 MW
13:0083 MW
14:0081 MW
15:0088 MW
16:0089 MW
17:0095 MW
18:0099 MW
19:00104 MW
20:00113 MW
21:00125 MW
22:00129 MW
23:00121 MW
Average PSEI demand, net generation, wind by local hour
Local hourDemandNet generationWind
00:00 2,205 MW 401 MW 126 MW
01:00 2,112 MW 402 MW 129 MW
02:00 2,062 MW 402 MW 132 MW
03:00 2,061 MW 409 MW 136 MW
04:00 2,132 MW 403 MW 128 MW
05:00 2,311 MW 434 MW 124 MW
06:00 2,583 MW 458 MW 122 MW
07:00 2,786 MW 462 MW 117 MW
08:00 2,857 MW 452 MW 107 MW
09:00 2,858 MW 425 MW 97 MW
10:00 2,815 MW 416 MW 90 MW
11:00 2,765 MW 399 MW 84 MW
12:00 2,719 MW 399 MW 84 MW
13:00 2,672 MW 403 MW 83 MW
14:00 2,647 MW 402 MW 81 MW
15:00 2,662 MW 407 MW 88 MW
16:00 2,724 MW 434 MW 89 MW
17:00 2,821 MW 461 MW 95 MW
18:00 2,903 MW 469 MW 99 MW
19:00 2,932 MW 465 MW 104 MW
20:00 2,858 MW 464 MW 113 MW
21:00 2,719 MW 460 MW 125 MW
22:00 2,523 MW 452 MW 129 MW
23:00 2,338 MW 428 MW 121 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. Solar is left out of the net load calculation for PSEI: the series is missing, reads zero, or is under 3% of average demand in this window. The single highest hour of demand in the whole 30 day window was 3,312 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 2026-10-27. Profiles are computed by World Power Monitor from the operator's hourly series.

Assumptions

  • Hours are local clock time in America/Los_Angeles. 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). PSEI Daily Electricity Demand by Hour of Day. https://worldpowermonitor.com/load-shapes/psei/

Plain text

World Power Monitor. PSEI Daily Electricity Demand by Hour of Day. Data as of 2026-10-27. Data from U.S. Energy Information Administration. https://worldpowermonitor.com/load-shapes/psei/

BibTeX 
@misc{wpm_load_shapes_psei_2026,
  title = {{PSEI Daily Electricity Demand by Hour of Day}},
  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/psei/}
}

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