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Data as of 2026-09-19
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Built 2026-09-21 (21 September 2026)

TPWR Daily Electricity Demand by Hour of Day, 22 August to 19 September 2026

In the 29 complete local days from 22 August to 19 September 2026, electricity demand in TPWR averaged 432 MW and typically peaked at 17:00 local time (498 MW) and bottomed out at 03:00 (338 MW). Hours are local clock time (America/Los_Angeles).

Key Facts

  • Over 29 complete local days from 22 August to 19 September 2026, average demand in TPWR was 432 MW. The hour of the day with the highest average demand was 17:00 local time (498 MW) and the lowest was 03:00 (338 MW).
  • The largest three hour rise in average demand was 20 MW, between 14:00 to 17:00 local time.
  • The single highest hour of demand in the 30 day window was 610 MW, in the hour starting 25 Aug 2026, 16:00 PDT (UTC-07:00).

Average Day by Local Hour

29 days to 2026-09-19, America/Los_Angeles time
TPWR average demand and net generation by local hour Average electricity demand in TPWR by local clock hour over 29 complete local days from 22 August to 19 September 2026. It was lowest at 03:00 (338 MW) and highest at 17:00 (498 MW). Net generation is the power produced inside the grid, so it differs from demand by net imports. 0 125 250 375 500 00:0003:0006:0009:0012:0015:0018:0021:00
Average electricity demand in TPWR by local clock hour over 29 complete local days from 22 August to 19 September 2026. It was lowest at 03:00 (338 MW) and highest at 17:00 (498 MW). Net generation is the power produced inside the grid, so it differs from demand by net imports.
Mean MW by local hour, 2026-08-22 to 2026-09-19
TPWR average demand and net generation by local hour
Local hour (America/Los_Angeles)DemandNet generation
00:00371 MW105 MW
01:00352 MW95 MW
02:00342 MW89 MW
03:00338 MW88 MW
04:00345 MW87 MW
05:00363 MW89 MW
06:00393 MW107 MW
07:00415 MW108 MW
08:00432 MW101 MW
09:00448 MW107 MW
10:00456 MW127 MW
11:00465 MW127 MW
12:00470 MW131 MW
13:00474 MW140 MW
14:00478 MW157 MW
15:00483 MW174 MW
16:00492 MW193 MW
17:00498 MW217 MW
18:00494 MW237 MW
19:00492 MW227 MW
20:00487 MW218 MW
21:00462 MW200 MW
22:00427 MW155 MW
23:00396 MW135 MW
Average TPWR demand, net generation by local hour
Local hourDemandNet generation
00:00 371 MW 105 MW
01:00 352 MW 95 MW
02:00 342 MW 89 MW
03:00 338 MW 88 MW
04:00 345 MW 87 MW
05:00 363 MW 89 MW
06:00 393 MW 107 MW
07:00 415 MW 108 MW
08:00 432 MW 101 MW
09:00 448 MW 107 MW
10:00 456 MW 127 MW
11:00 465 MW 127 MW
12:00 470 MW 131 MW
13:00 474 MW 140 MW
14:00 478 MW 157 MW
15:00 483 MW 174 MW
16:00 492 MW 193 MW
17:00 498 MW 217 MW
18:00 494 MW 237 MW
19:00 492 MW 227 MW
20:00 487 MW 218 MW
21:00 462 MW 200 MW
22:00 427 MW 155 MW
23:00 396 MW 135 MW

Each value is the mean over 29 complete local days from 22 August to 19 September 2026, weekdays and weekends together, for the hour starting at that local clock time. The single highest hour of demand in the whole 30 day window was 610 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 2026-09-19. 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.