Built 2026-09-19 (19 September 2026)

TPWR Electricity Demand and Generation Mix

TPWR demand was 472 MW in the hour starting 15 Sept 2026, 08:00 PDT (UTC-07:00). Hydro was the largest source in the hour starting 14 Sept 2026, 22:00 PDT (UTC-07:00), at 100% of generation. Operator data is hourly and provisional, and may be revised.

Key Facts

  • TPWR is a balancing authority in the United States, part of the EIA Northwest region.
  • In the hour starting 15 Sept 2026, 08:00 PDT (UTC-07:00), demand in TPWR was 472 MW, against a day-ahead forecast of 467 MW.
  • Hydro supplied 100.0% of TPWR's generation in the hour starting 14 Sept 2026, 22:00 PDT (UTC-07:00).
  • Demand in TPWR totalled 4.53 TWh in 2025.
  • Hydro supplied 100.0% of TPWR's generation in 2025.
  • The highest daily demand in TPWR from 2019 onward was 21.5 GWh, on 2022-12-22 (22 December 2022).
  • The highest hourly demand in TPWR since 2026-06-16 (16 June 2026) was 702 MW, in the hour starting 22 Jul 2026, 15:00 PDT (UTC-07:00).

Latest Demand

Hourly operator data
Demand472 MW
Day-ahead forecast467 MW
30 day peak628 MW
30 day average440 MW

Latest hour known when this page was built: 15 Sept 2026, 08:00 PDT (UTC-07:00).

Source: U.S. Energy Information Administration (EIA). (US Government work, public domain) Data as of 2026-09-15T15:00:00Z.

Generation by Source

Latest hour with generation by source: 14 Sept 2026, 22:00 PDT (UTC-07:00)
SourceOutputShare
Hydro 112 MW 100.0%
Total from these sources112 MW
Net interchange-303 MWnet imports

EIA publishes generation by source 10 or more hours after demand, so this hour can be earlier than the latest demand hour. Net interchange is positive when TPWR exports.

Source: U.S. Energy Information Administration (EIA). (US Government work, public domain) Data as of 2026-09-15T05:00:00Z.

Last 30 Days, Hourly

Times in UTC
TPWR hourly electricity demand, last 30 days Hourly demand in TPWR over the 30 days to 2026-09-15. Demand peaked at 628 MW in the hour starting 20 Aug 2026, 17:00 PDT (UTC-07:00) and averaged 440 MW. 0 200 400 600 800 16 Aug21 Aug26 Aug31 Aug5 Sep10 Sep
Hourly demand in TPWR over the 30 days to 2026-09-15. Demand peaked at 628 MW in the hour starting 20 Aug 2026, 17:00 PDT (UTC-07:00) and averaged 440 MW.
Hourly demand through 2026-09-15T16:00Z, MW
TPWR hourly electricity demand, last 30 days
Hour starting (UTC)Demand
2026-08-16T17:00Z418 MW
2026-08-16T18:00Z432 MW
2026-08-16T19:00Z443 MW
2026-08-16T20:00Z446 MW
2026-08-16T21:00Z459 MW
2026-08-16T22:00Z481 MW
2026-08-16T23:00Z496 MW
2026-08-17T00:00Z511 MW
2026-08-17T01:00Z522 MW
2026-08-17T02:00Z511 MW
2026-08-17T03:00Z501 MW
2026-08-17T04:00Z488 MW
2026-08-17T05:00Z449 MW
2026-08-17T06:00Z407 MW
2026-08-17T07:00Z377 MW
2026-08-17T08:00Z356 MW
2026-08-17T09:00Z344 MW
2026-08-17T10:00Z342 MW
2026-08-17T11:00Z347 MW
2026-08-17T12:00Z366 MW
2026-08-17T13:00Z394 MW
2026-08-17T14:00Z418 MW
2026-08-17T15:00Z440 MW
2026-08-17T16:00Z453 MW
2026-08-17T17:00Z472 MW
2026-08-17T18:00Z491 MW
2026-08-17T19:00Z504 MW
2026-08-17T20:00Z528 MW
2026-08-17T21:00Z544 MW
2026-08-17T22:00Z551 MW
2026-08-17T23:00Z571 MW
2026-08-18T00:00Z582 MW
2026-08-18T01:00Z583 MW
2026-08-18T02:00Z572 MW
2026-08-18T03:00Z562 MW
2026-08-18T04:00Z534 MW
2026-08-18T05:00Z489 MW
2026-08-18T06:00Z444 MW
2026-08-18T07:00Z412 MW
2026-08-18T08:00Z388 MW
2026-08-18T09:00Z369 MW
2026-08-18T10:00Z360 MW
2026-08-18T11:00Z370 MW
2026-08-18T12:00Z385 MW
2026-08-18T13:00Z412 MW
2026-08-18T14:00Z434 MW
2026-08-18T15:00Z451 MW
2026-08-18T16:00Z464 MW
2026-08-18T17:00Z473 MW
2026-08-18T18:00Z484 MW
2026-08-18T19:00Z511 MW
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2026-08-18T21:00Z541 MW
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2026-08-19T06:00Z431 MW
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2026-08-19T14:00Z427 MW
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2026-08-20T14:00Z440 MW
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2026-09-07T02:00Z454 MW
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2026-09-07T06:00Z371 MW
2026-09-07T07:00Z350 MW
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2026-09-07T10:00Z319 MW
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2026-09-07T12:00Z329 MW
2026-09-07T13:00Z347 MW
2026-09-07T14:00Z358 MW
2026-09-07T15:00Z378 MW
2026-09-07T16:00Z410 MW
2026-09-07T17:00Z427 MW
2026-09-07T18:00Z439 MW
2026-09-07T19:00Z443 MW
2026-09-07T20:00Z448 MW
2026-09-07T21:00Z453 MW
2026-09-07T22:00Z459 MW
2026-09-07T23:00Z474 MW
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2026-09-08T01:00Z482 MW
2026-09-08T02:00Z483 MW
2026-09-08T03:00Z481 MW
2026-09-08T04:00Z452 MW
2026-09-08T05:00Z418 MW
2026-09-08T06:00Z376 MW
2026-09-08T07:00Z351 MW
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2026-09-08T09:00Z331 MW
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2026-09-08T11:00Z337 MW
2026-09-08T12:00Z365 MW
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2026-09-08T14:00Z432 MW
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2026-09-08T17:00Z463 MW
2026-09-08T18:00Z482 MW
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2026-09-10T02:00Z537 MW
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2026-09-10T05:00Z450 MW
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2026-09-10T08:00Z361 MW
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2026-09-10T10:00Z345 MW
2026-09-10T11:00Z352 MW
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2026-09-10T13:00Z416 MW
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2026-09-10T15:00Z449 MW
2026-09-10T16:00Z462 MW
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2026-09-11T04:00Z461 MW
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2026-09-11T06:00Z386 MW
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2026-09-11T08:00Z349 MW
2026-09-11T09:00Z338 MW
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2026-09-11T14:00Z436 MW
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2026-09-11T17:00Z463 MW
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2026-09-11T20:00Z473 MW
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2026-09-11T23:00Z471 MW
2026-09-12T00:00Z480 MW
2026-09-12T01:00Z473 MW
2026-09-12T02:00Z473 MW
2026-09-12T03:00Z472 MW
2026-09-12T04:00Z449 MW
2026-09-12T05:00Z420 MW
2026-09-12T06:00Z394 MW
2026-09-12T07:00Z371 MW
2026-09-12T08:00Z347 MW
2026-09-12T09:00Z339 MW
2026-09-12T10:00Z334 MW
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2026-09-12T14:00Z388 MW
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2026-09-12T16:00Z427 MW
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2026-09-13T02:00Z441 MW
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2026-09-13T05:00Z396 MW
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2026-09-13T07:00Z351 MW
2026-09-13T08:00Z345 MW
2026-09-13T09:00Z331 MW
2026-09-13T10:00Z327 MW
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2026-09-13T16:00Z433 MW
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2026-09-13T18:00Z460 MW
2026-09-13T19:00Z459 MW
2026-09-13T20:00Z469 MW
2026-09-13T21:00Z464 MW
2026-09-13T22:00Z467 MW
2026-09-13T23:00Z482 MW
2026-09-14T00:00Z476 MW
2026-09-14T01:00Z471 MW
2026-09-14T02:00Z477 MW
2026-09-14T03:00Z481 MW
2026-09-14T04:00Z453 MW
2026-09-14T05:00Z416 MW
2026-09-14T06:00Z391 MW
2026-09-14T07:00Z361 MW
2026-09-14T08:00Z347 MW
2026-09-14T09:00Z342 MW
2026-09-14T10:00Z343 MW
2026-09-14T11:00Z357 MW
2026-09-14T12:00Z386 MW
2026-09-14T13:00Z431 MW
2026-09-14T14:00Z460 MW
2026-09-14T15:00Z468 MW
2026-09-14T16:00Z469 MW
2026-09-14T17:00Z475 MW
2026-09-14T18:00Z478 MW
2026-09-14T19:00Z482 MW
2026-09-14T20:00Z478 MW
2026-09-14T21:00Z476 MW
2026-09-14T22:00Z469 MW
2026-09-14T23:00Z481 MW
2026-09-15T00:00Z478 MW
2026-09-15T01:00Z487 MW
2026-09-15T02:00Z494 MW
2026-09-15T03:00Z488 MW
2026-09-15T04:00Z458 MW
2026-09-15T05:00Z415 MW
2026-09-15T06:00Z388 MW
2026-09-15T07:00Z366 MW
2026-09-15T08:00Z345 MW
2026-09-15T09:00Z341 MW
2026-09-15T10:00Z339 MW
2026-09-15T11:00Z356 MW
2026-09-15T12:00Z386 MW
2026-09-15T13:00Z428 MW
2026-09-15T14:00Z457 MW
2026-09-15T15:00Z472 MW
2026-09-15T16:00Zn/a
TPWR hourly generation by source, last 30 days Hourly generation in TPWR from its 1 largest sources over the 30 days to 2026-09-15: hydro 99.2 GWh. 0 125 250 375 500 16 Aug21 Aug26 Aug31 Aug5 Sep10 Sep
Hourly generation in TPWR from its 1 largest sources over the 30 days to 2026-09-15: hydro 99.2 GWh.
Hourly generation by source through 2026-09-15T16:00Z, MW
TPWR hourly generation by source, last 30 days
Hour starting (UTC)Hydro
2026-08-16T17:00Z55 MW
2026-08-16T18:00Z55 MW
2026-08-16T19:00Z53 MW
2026-08-16T20:00Z56 MW
2026-08-16T21:00Z58 MW
2026-08-16T22:00Z62 MW
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2026-08-17T00:00Z153 MW
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2026-08-17T02:00Z162 MW
2026-08-17T03:00Z170 MW
2026-08-17T04:00Z138 MW
2026-08-17T05:00Z162 MW
2026-08-17T06:00Z120 MW
2026-08-17T07:00Z56 MW
2026-08-17T08:00Z57 MW
2026-08-17T09:00Z58 MW
2026-08-17T10:00Z59 MW
2026-08-17T11:00Z56 MW
2026-08-17T12:00Z103 MW
2026-08-17T13:00Z102 MW
2026-08-17T14:00Z102 MW
2026-08-17T15:00Z104 MW
2026-08-17T16:00Z104 MW
2026-08-17T17:00Z106 MW
2026-08-17T18:00Z104 MW
2026-08-17T19:00Z104 MW
2026-08-17T20:00Z106 MW
2026-08-17T21:00Z104 MW
2026-08-17T22:00Z138 MW
2026-08-17T23:00Z232 MW
2026-08-18T00:00Z190 MW
2026-08-18T01:00Z301 MW
2026-08-18T02:00Z301 MW
2026-08-18T03:00Z255 MW
2026-08-18T04:00Z185 MW
2026-08-18T05:00Z150 MW
2026-08-18T06:00Z127 MW
2026-08-18T07:00Z63 MW
2026-08-18T08:00Z60 MW
2026-08-18T09:00Z62 MW
2026-08-18T10:00Z61 MW
2026-08-18T11:00Z59 MW
2026-08-18T12:00Z57 MW
2026-08-18T13:00Z58 MW
2026-08-18T14:00Z62 MW
2026-08-18T15:00Z69 MW
2026-08-18T16:00Z114 MW
2026-08-18T17:00Z117 MW
2026-08-18T18:00Z116 MW
2026-08-18T19:00Z120 MW
2026-08-18T20:00Z119 MW
2026-08-18T21:00Z120 MW
2026-08-18T22:00Z125 MW
2026-08-18T23:00Z119 MW
2026-08-19T00:00Z186 MW
2026-08-19T01:00Z295 MW
2026-08-19T02:00Z256 MW
2026-08-19T03:00Z246 MW
2026-08-19T04:00Z233 MW
2026-08-19T05:00Z194 MW
2026-08-19T06:00Z119 MW
2026-08-19T07:00Z79 MW
2026-08-19T08:00Z76 MW
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2026-08-19T18:00Z119 MW
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2026-08-19T21:00Z123 MW
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2026-08-19T23:00Z233 MW
2026-08-20T00:00Z315 MW
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2026-08-20T02:00Z364 MW
2026-08-20T03:00Z351 MW
2026-08-20T04:00Z302 MW
2026-08-20T05:00Z194 MW
2026-08-20T06:00Z151 MW
2026-08-20T07:00Z155 MW
2026-08-20T08:00Z78 MW
2026-08-20T09:00Z77 MW
2026-08-20T10:00Z77 MW
2026-08-20T11:00Z78 MW
2026-08-20T12:00Z78 MW
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2026-08-20T15:00Z76 MW
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2026-08-20T17:00Z122 MW
2026-08-20T18:00Z189 MW
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2026-08-20T20:00Z191 MW
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2026-08-21T01:00Z340 MW
2026-08-21T02:00Z281 MW
2026-08-21T03:00Z256 MW
2026-08-21T04:00Z309 MW
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2026-08-21T09:00Z72 MW
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2026-08-21T15:00Z71 MW
2026-08-21T16:00Z73 MW
2026-08-21T17:00Z73 MW
2026-08-21T18:00Z76 MW
2026-08-21T19:00Z117 MW
2026-08-21T20:00Z123 MW
2026-08-21T21:00Z120 MW
2026-08-21T22:00Z122 MW
2026-08-21T23:00Z162 MW
2026-08-22T00:00Z178 MW
2026-08-22T01:00Z179 MW
2026-08-22T02:00Z197 MW
2026-08-22T03:00Z189 MW
2026-08-22T04:00Z210 MW
2026-08-22T05:00Z168 MW
2026-08-22T06:00Z166 MW
2026-08-22T07:00Z121 MW
2026-08-22T08:00Z78 MW
2026-08-22T09:00Z78 MW
2026-08-22T10:00Z77 MW
2026-08-22T11:00Z76 MW
2026-08-22T12:00Z79 MW
2026-08-22T13:00Z76 MW
2026-08-22T14:00Z76 MW
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2026-08-22T16:00Z76 MW
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2026-08-22T19:00Z75 MW
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2026-08-23T12:00Z59 MW
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2026-08-23T17:00Z102 MW
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2026-08-23T20:00Z102 MW
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2026-08-23T23:00Z176 MW
2026-08-24T00:00Z196 MW
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2026-08-24T12:00Z61 MW
2026-08-24T13:00Z63 MW
2026-08-24T14:00Z60 MW
2026-08-24T15:00Z62 MW
2026-08-24T16:00Z59 MW
2026-08-24T17:00Z62 MW
2026-08-24T18:00Z59 MW
2026-08-24T19:00Z61 MW
2026-08-24T20:00Z107 MW
2026-08-24T21:00Z145 MW
2026-08-24T22:00Z172 MW
2026-08-24T23:00Z306 MW
2026-08-25T00:00Z296 MW
2026-08-25T01:00Z314 MW
2026-08-25T02:00Z293 MW
2026-08-25T03:00Z221 MW
2026-08-25T04:00Z217 MW
2026-08-25T05:00Z111 MW
2026-08-25T06:00Z125 MW
2026-08-25T07:00Z81 MW
2026-08-25T08:00Z76 MW
2026-08-25T09:00Z74 MW
2026-08-25T10:00Z79 MW
2026-08-25T11:00Z75 MW
2026-08-25T12:00Z78 MW
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2026-08-25T14:00Z79 MW
2026-08-25T15:00Z75 MW
2026-08-25T16:00Z77 MW
2026-08-25T17:00Z119 MW
2026-08-25T18:00Z120 MW
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2026-08-25T20:00Z147 MW
2026-08-25T21:00Z284 MW
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2026-08-25T23:00Z324 MW
2026-08-26T00:00Z340 MW
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2026-08-26T02:00Z317 MW
2026-08-26T03:00Z297 MW
2026-08-26T04:00Z211 MW
2026-08-26T05:00Z161 MW
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2026-08-26T07:00Z81 MW
2026-08-26T08:00Z79 MW
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2026-08-26T10:00Z79 MW
2026-08-26T11:00Z80 MW
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2026-08-26T13:00Z79 MW
2026-08-26T14:00Z79 MW
2026-08-26T15:00Z117 MW
2026-08-26T16:00Z122 MW
2026-08-26T17:00Z119 MW
2026-08-26T18:00Z124 MW
2026-08-26T19:00Z187 MW
2026-08-26T20:00Z191 MW
2026-08-26T21:00Z195 MW
2026-08-26T22:00Z188 MW
2026-08-26T23:00Z195 MW
2026-08-27T00:00Z199 MW
2026-08-27T01:00Z343 MW
2026-08-27T02:00Z333 MW
2026-08-27T03:00Z353 MW
2026-08-27T04:00Z335 MW
2026-08-27T05:00Z200 MW
2026-08-27T06:00Z135 MW
2026-08-27T07:00Z83 MW
2026-08-27T08:00Z79 MW
2026-08-27T09:00Z79 MW
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2026-08-27T11:00Z78 MW
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2026-08-27T14:00Z80 MW
2026-08-27T15:00Z78 MW
2026-08-27T16:00Z81 MW
2026-08-27T17:00Z177 MW
2026-08-27T18:00Z199 MW
2026-08-27T19:00Z220 MW
2026-08-27T20:00Z231 MW
2026-08-27T21:00Z207 MW
2026-08-27T22:00Z212 MW
2026-08-27T23:00Z184 MW
2026-08-28T00:00Z196 MW
2026-08-28T01:00Z147 MW
2026-08-28T02:00Z149 MW
2026-08-28T03:00Z150 MW
2026-08-28T04:00Z173 MW
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2026-08-28T06:00Z206 MW
2026-08-28T07:00Z94 MW
2026-08-28T08:00Z96 MW
2026-08-28T09:00Z92 MW
2026-08-28T10:00Z95 MW
2026-08-28T11:00Z92 MW
2026-08-28T12:00Z95 MW
2026-08-28T13:00Z200 MW
2026-08-28T14:00Z202 MW
2026-08-28T15:00Z203 MW
2026-08-28T16:00Z189 MW
2026-08-28T17:00Z187 MW
2026-08-28T18:00Z201 MW
2026-08-28T19:00Z200 MW
2026-08-28T20:00Z204 MW
2026-08-28T21:00Z313 MW
2026-08-28T22:00Z324 MW
2026-08-28T23:00Z211 MW
2026-08-29T00:00Z234 MW
2026-08-29T01:00Z232 MW
2026-08-29T02:00Z229 MW
2026-08-29T03:00Z215 MW
2026-08-29T04:00Z201 MW
2026-08-29T05:00Z77 MW
2026-08-29T06:00Z76 MW
2026-08-29T07:00Z79 MW
2026-08-29T08:00Z77 MW
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2026-08-29T10:00Z74 MW
2026-08-29T11:00Z75 MW
2026-08-29T12:00Z73 MW
2026-08-29T13:00Z73 MW
2026-08-29T14:00Z73 MW
2026-08-29T15:00Z72 MW
2026-08-29T16:00Z71 MW
2026-08-29T17:00Z127 MW
2026-08-29T18:00Z126 MW
2026-08-29T19:00Z124 MW
2026-08-29T20:00Z123 MW
2026-08-29T21:00Z119 MW
2026-08-29T22:00Z171 MW
2026-08-29T23:00Z174 MW
2026-08-30T00:00Z185 MW
2026-08-30T01:00Z186 MW
2026-08-30T02:00Z193 MW
2026-08-30T03:00Z187 MW
2026-08-30T04:00Z174 MW
2026-08-30T05:00Z121 MW
2026-08-30T06:00Z130 MW
2026-08-30T07:00Z63 MW
2026-08-30T08:00Z63 MW
2026-08-30T09:00Z63 MW
2026-08-30T10:00Z63 MW
2026-08-30T11:00Z63 MW
2026-08-30T12:00Z63 MW
2026-08-30T13:00Z61 MW
2026-08-30T14:00Z64 MW
2026-08-30T15:00Z62 MW
2026-08-30T16:00Z116 MW
2026-08-30T17:00Z192 MW
2026-08-30T18:00Z176 MW
2026-08-30T19:00Z121 MW
2026-08-30T20:00Z173 MW
2026-08-30T21:00Z175 MW
2026-08-30T22:00Z213 MW
2026-08-30T23:00Z175 MW
2026-08-31T00:00Z184 MW
2026-08-31T01:00Z214 MW
2026-08-31T02:00Z173 MW
2026-08-31T03:00Z174 MW
2026-08-31T04:00Z171 MW
2026-08-31T05:00Z171 MW
2026-08-31T06:00Z167 MW
2026-08-31T07:00Z65 MW
2026-08-31T08:00Z63 MW
2026-08-31T09:00Z64 MW
2026-08-31T10:00Z64 MW
2026-08-31T11:00Z63 MW
2026-08-31T12:00Z63 MW
2026-08-31T13:00Z63 MW
2026-08-31T14:00Z62 MW
2026-08-31T15:00Z63 MW
2026-08-31T16:00Z62 MW
2026-08-31T17:00Z101 MW
2026-08-31T18:00Z102 MW
2026-08-31T19:00Z103 MW
2026-08-31T20:00Z103 MW
2026-08-31T21:00Z104 MW
2026-08-31T22:00Z105 MW
2026-08-31T23:00Z108 MW
2026-09-01T00:00Z157 MW
2026-09-01T01:00Z176 MW
2026-09-01T02:00Z154 MW
2026-09-01T03:00Z199 MW
2026-09-01T04:00Z146 MW
2026-09-01T05:00Z103 MW
2026-09-01T06:00Z103 MW
2026-09-01T07:00Z186 MW
2026-09-01T08:00Z190 MW
2026-09-01T09:00Z109 MW
2026-09-01T10:00Z63 MW
2026-09-01T11:00Z62 MW
2026-09-01T12:00Z63 MW
2026-09-01T13:00Z63 MW
2026-09-01T14:00Z63 MW
2026-09-01T15:00Z63 MW
2026-09-01T16:00Z65 MW
2026-09-01T17:00Z61 MW
2026-09-01T18:00Z62 MW
2026-09-01T19:00Z65 MW
2026-09-01T20:00Z62 MW
2026-09-01T21:00Z65 MW
2026-09-01T22:00Z61 MW
2026-09-01T23:00Z101 MW
2026-09-02T00:00Z106 MW
2026-09-02T01:00Z106 MW
2026-09-02T02:00Z104 MW
2026-09-02T03:00Z102 MW
2026-09-02T04:00Z106 MW
2026-09-02T05:00Z101 MW
2026-09-02T06:00Z64 MW
2026-09-02T07:00Z64 MW
2026-09-02T08:00Z63 MW
2026-09-02T09:00Z64 MW
2026-09-02T10:00Z63 MW
2026-09-02T11:00Z65 MW
2026-09-02T12:00Z63 MW
2026-09-02T13:00Z63 MW
2026-09-02T14:00Z64 MW
2026-09-02T15:00Z64 MW
2026-09-02T16:00Z63 MW
2026-09-02T17:00Z107 MW
2026-09-02T18:00Z104 MW
2026-09-02T19:00Z109 MW
2026-09-02T20:00Z105 MW
2026-09-02T21:00Z105 MW
2026-09-02T22:00Z103 MW
2026-09-02T23:00Z152 MW
2026-09-03T00:00Z160 MW
2026-09-03T01:00Z161 MW
2026-09-03T02:00Z211 MW
2026-09-03T03:00Z213 MW
2026-09-03T04:00Z173 MW
2026-09-03T05:00Z174 MW
2026-09-03T06:00Z168 MW
2026-09-03T07:00Z64 MW
2026-09-03T08:00Z62 MW
2026-09-03T09:00Z65 MW
2026-09-03T10:00Z63 MW
2026-09-03T11:00Z65 MW
2026-09-03T12:00Z63 MW
2026-09-03T13:00Z64 MW
2026-09-03T14:00Z64 MW
2026-09-03T15:00Z68 MW
2026-09-03T16:00Z70 MW
2026-09-03T17:00Z110 MW
2026-09-03T18:00Z115 MW
2026-09-03T19:00Z115 MW
2026-09-03T20:00Z117 MW
2026-09-03T21:00Z114 MW
2026-09-03T22:00Z135 MW
2026-09-03T23:00Z173 MW
2026-09-04T00:00Z184 MW
2026-09-04T01:00Z231 MW
2026-09-04T02:00Z219 MW
2026-09-04T03:00Z189 MW
2026-09-04T04:00Z188 MW
2026-09-04T05:00Z196 MW
2026-09-04T06:00Z180 MW
2026-09-04T07:00Z125 MW
2026-09-04T08:00Z115 MW
2026-09-04T09:00Z113 MW
2026-09-04T10:00Z116 MW
2026-09-04T11:00Z116 MW
2026-09-04T12:00Z120 MW
2026-09-04T13:00Z155 MW
2026-09-04T14:00Z122 MW
2026-09-04T15:00Z59 MW
2026-09-04T16:00Z60 MW
2026-09-04T17:00Z59 MW
2026-09-04T18:00Z58 MW
2026-09-04T19:00Z60 MW
2026-09-04T20:00Z61 MW
2026-09-04T21:00Z62 MW
2026-09-04T22:00Z66 MW
2026-09-04T23:00Z107 MW
2026-09-05T00:00Z144 MW
2026-09-05T01:00Z181 MW
2026-09-05T02:00Z180 MW
2026-09-05T03:00Z196 MW
2026-09-05T04:00Z195 MW
2026-09-05T05:00Z171 MW
2026-09-05T06:00Z176 MW
2026-09-05T07:00Z174 MW
2026-09-05T08:00Z71 MW
2026-09-05T09:00Z70 MW
2026-09-05T10:00Z71 MW
2026-09-05T11:00Z65 MW
2026-09-05T12:00Z63 MW
2026-09-05T13:00Z60 MW
2026-09-05T14:00Z58 MW
2026-09-05T15:00Z56 MW
2026-09-05T16:00Z57 MW
2026-09-05T17:00Z55 MW
2026-09-05T18:00Z57 MW
2026-09-05T19:00Z59 MW
2026-09-05T20:00Z56 MW
2026-09-05T21:00Z100 MW
2026-09-05T22:00Z120 MW
2026-09-05T23:00Z112 MW
2026-09-06T00:00Z154 MW
2026-09-06T01:00Z203 MW
2026-09-06T02:00Z183 MW
2026-09-06T03:00Z180 MW
2026-09-06T04:00Z177 MW
2026-09-06T05:00Z60 MW
2026-09-06T06:00Z62 MW
2026-09-06T07:00Z62 MW
2026-09-06T08:00Z64 MW
2026-09-06T09:00Z63 MW
2026-09-06T10:00Z64 MW
2026-09-06T11:00Z62 MW
2026-09-06T12:00Z64 MW
2026-09-06T13:00Z64 MW
2026-09-06T14:00Z63 MW
2026-09-06T15:00Z60 MW
2026-09-06T16:00Z60 MW
2026-09-06T17:00Z62 MW
2026-09-06T18:00Z60 MW
2026-09-06T19:00Z59 MW
2026-09-06T20:00Z62 MW
2026-09-06T21:00Z60 MW
2026-09-06T22:00Z127 MW
2026-09-06T23:00Z144 MW
2026-09-07T00:00Z130 MW
2026-09-07T01:00Z169 MW
2026-09-07T02:00Z118 MW
2026-09-07T03:00Z165 MW
2026-09-07T04:00Z166 MW
2026-09-07T05:00Z164 MW
2026-09-07T06:00Z61 MW
2026-09-07T07:00Z59 MW
2026-09-07T08:00Z64 MW
2026-09-07T09:00Z62 MW
2026-09-07T10:00Z64 MW
2026-09-07T11:00Z64 MW
2026-09-07T12:00Z63 MW
2026-09-07T13:00Z58 MW
2026-09-07T14:00Z63 MW
2026-09-07T15:00Z61 MW
2026-09-07T16:00Z64 MW
2026-09-07T17:00Z101 MW
2026-09-07T18:00Z105 MW
2026-09-07T19:00Z101 MW
2026-09-07T20:00Z101 MW
2026-09-07T21:00Z101 MW
2026-09-07T22:00Z103 MW
2026-09-07T23:00Z102 MW
2026-09-08T00:00Z104 MW
2026-09-08T01:00Z117 MW
2026-09-08T02:00Z195 MW
2026-09-08T03:00Z211 MW
2026-09-08T04:00Z181 MW
2026-09-08T05:00Z189 MW
2026-09-08T06:00Z177 MW
2026-09-08T07:00Z105 MW
2026-09-08T08:00Z98 MW
2026-09-08T09:00Z89 MW
2026-09-08T10:00Z93 MW
2026-09-08T11:00Z93 MW
2026-09-08T12:00Z125 MW
2026-09-08T13:00Z236 MW
2026-09-08T14:00Z177 MW
2026-09-08T15:00Z162 MW
2026-09-08T16:00Z174 MW
2026-09-08T17:00Z233 MW
2026-09-08T18:00Z234 MW
2026-09-08T19:00Z241 MW
2026-09-08T20:00Z245 MW
2026-09-08T21:00Z343 MW
2026-09-08T22:00Z369 MW
2026-09-08T23:00Z369 MW
2026-09-09T00:00Z415 MW
2026-09-09T01:00Z431 MW
2026-09-09T02:00Z364 MW
2026-09-09T03:00Z414 MW
2026-09-09T04:00Z251 MW
2026-09-09T05:00Z126 MW
2026-09-09T06:00Z125 MW
2026-09-09T07:00Z146 MW
2026-09-09T08:00Z136 MW
2026-09-09T09:00Z145 MW
2026-09-09T10:00Z148 MW
2026-09-09T11:00Z143 MW
2026-09-09T12:00Z146 MW
2026-09-09T13:00Z148 MW
2026-09-09T14:00Z139 MW
2026-09-09T15:00Z133 MW
2026-09-09T16:00Z135 MW
2026-09-09T17:00Z216 MW
2026-09-09T18:00Z219 MW
2026-09-09T19:00Z221 MW
2026-09-09T20:00Z219 MW
2026-09-09T21:00Z258 MW
2026-09-09T22:00Z311 MW
2026-09-09T23:00Z424 MW
2026-09-10T00:00Z454 MW
2026-09-10T01:00Z485 MW
2026-09-10T02:00Z478 MW
2026-09-10T03:00Z442 MW
2026-09-10T04:00Z416 MW
2026-09-10T05:00Z277 MW
2026-09-10T06:00Z175 MW
2026-09-10T07:00Z173 MW
2026-09-10T08:00Z152 MW
2026-09-10T09:00Z151 MW
2026-09-10T10:00Z151 MW
2026-09-10T11:00Z149 MW
2026-09-10T12:00Z148 MW
2026-09-10T13:00Z164 MW
2026-09-10T14:00Z165 MW
2026-09-10T15:00Z187 MW
2026-09-10T16:00Z192 MW
2026-09-10T17:00Z183 MW
2026-09-10T18:00Z171 MW
2026-09-10T19:00Z173 MW
2026-09-10T20:00Z255 MW
2026-09-10T21:00Z172 MW
2026-09-10T22:00Z174 MW
2026-09-10T23:00Z176 MW
2026-09-11T00:00Z231 MW
2026-09-11T01:00Z327 MW
2026-09-11T02:00Z304 MW
2026-09-11T03:00Z247 MW
2026-09-11T04:00Z239 MW
2026-09-11T05:00Z230 MW
2026-09-11T06:00Z122 MW
2026-09-11T07:00Z118 MW
2026-09-11T08:00Z120 MW
2026-09-11T09:00Z117 MW
2026-09-11T10:00Z117 MW
2026-09-11T11:00Z116 MW
2026-09-11T12:00Z114 MW
2026-09-11T13:00Z113 MW
2026-09-11T14:00Z115 MW
2026-09-11T15:00Z152 MW
2026-09-11T16:00Z155 MW
2026-09-11T17:00Z156 MW
2026-09-11T18:00Z157 MW
2026-09-11T19:00Z156 MW
2026-09-11T20:00Z159 MW
2026-09-11T21:00Z156 MW
2026-09-11T22:00Z160 MW
2026-09-11T23:00Z208 MW
2026-09-12T00:00Z323 MW
2026-09-12T01:00Z269 MW
2026-09-12T02:00Z265 MW
2026-09-12T03:00Z157 MW
2026-09-12T04:00Z218 MW
2026-09-12T05:00Z237 MW
2026-09-12T06:00Z225 MW
2026-09-12T07:00Z117 MW
2026-09-12T08:00Z119 MW
2026-09-12T09:00Z106 MW
2026-09-12T10:00Z107 MW
2026-09-12T11:00Z110 MW
2026-09-12T12:00Z105 MW
2026-09-12T13:00Z109 MW
2026-09-12T14:00Z106 MW
2026-09-12T15:00Z106 MW
2026-09-12T16:00Z118 MW
2026-09-12T17:00Z116 MW
2026-09-12T18:00Z115 MW
2026-09-12T19:00Z117 MW
2026-09-12T20:00Z115 MW
2026-09-12T21:00Z118 MW
2026-09-12T22:00Z117 MW
2026-09-12T23:00Z116 MW
2026-09-13T00:00Z154 MW
2026-09-13T01:00Z152 MW
2026-09-13T02:00Z154 MW
2026-09-13T03:00Z157 MW
2026-09-13T04:00Z154 MW
2026-09-13T05:00Z116 MW
2026-09-13T06:00Z108 MW
2026-09-13T07:00Z108 MW
2026-09-13T08:00Z107 MW
2026-09-13T09:00Z107 MW
2026-09-13T10:00Z107 MW
2026-09-13T11:00Z106 MW
2026-09-13T12:00Z107 MW
2026-09-13T13:00Z109 MW
2026-09-13T14:00Z108 MW
2026-09-13T15:00Z97 MW
2026-09-13T16:00Z127 MW
2026-09-13T17:00Z121 MW
2026-09-13T18:00Z117 MW
2026-09-13T19:00Z113 MW
2026-09-13T20:00Z117 MW
2026-09-13T21:00Z120 MW
2026-09-13T22:00Z142 MW
2026-09-13T23:00Z157 MW
2026-09-14T00:00Z208 MW
2026-09-14T01:00Z235 MW
2026-09-14T02:00Z231 MW
2026-09-14T03:00Z218 MW
2026-09-14T04:00Z151 MW
2026-09-14T05:00Z147 MW
2026-09-14T06:00Z156 MW
2026-09-14T07:00Z154 MW
2026-09-14T08:00Z113 MW
2026-09-14T09:00Z101 MW
2026-09-14T10:00Z111 MW
2026-09-14T11:00Z104 MW
2026-09-14T12:00Z103 MW
2026-09-14T13:00Z149 MW
2026-09-14T14:00Z172 MW
2026-09-14T15:00Z133 MW
2026-09-14T16:00Z133 MW
2026-09-14T17:00Z119 MW
2026-09-14T18:00Z116 MW
2026-09-14T19:00Z118 MW
2026-09-14T20:00Z118 MW
2026-09-14T21:00Z129 MW
2026-09-14T22:00Z192 MW
2026-09-14T23:00Z197 MW
2026-09-15T00:00Z224 MW
2026-09-15T01:00Z236 MW
2026-09-15T02:00Z215 MW
2026-09-15T03:00Z219 MW
2026-09-15T04:00Z230 MW
2026-09-15T05:00Z112 MW
2026-09-15T06:00Zn/a
2026-09-15T07:00Zn/a
2026-09-15T08:00Zn/a
2026-09-15T09:00Zn/a
2026-09-15T10:00Zn/a
2026-09-15T11:00Zn/a
2026-09-15T12:00Zn/a
2026-09-15T13:00Zn/a
2026-09-15T14:00Zn/a
2026-09-15T15:00Zn/a
2026-09-15T16:00Zn/a

Source: U.S. Energy Information Administration (EIA). (US Government work, public domain) Data as of 2026-09-15T16:00Z.

Day by Day

Daily totals, Pacific time dates, through 2026-09-13
TPWR daily electricity demand, 2025-08-11 to 2026-09-13 Daily demand in TPWR from 2025-08-11 (11 August 2025) to 2026-09-13 (13 September 2026), in GWh. The highest day was 2026-01-26 (26 January 2026) at 17.6 GWh; the average was 12.1 GWh a day. 0 5 10 15 20 Aug 2025Oct 2025Dec 2025Feb 2026Apr 2026Jun 2026Aug 2026
Daily demand in TPWR from 2025-08-11 (11 August 2025) to 2026-09-13 (13 September 2026), in GWh. The highest day was 2026-01-26 (26 January 2026) at 17.6 GWh; the average was 12.1 GWh a day.
Daily totals through 2026-09-13, GWh
TPWR daily electricity demand, 2025-08-11 to 2026-09-13
Date (Pacific time)Demand
2025-08-1112.7 GWh
2025-08-1213.2 GWh
2025-08-1312.1 GWh
2025-08-1411.0 GWh
2025-08-1510.6 GWh
2025-08-169.75 GWh
2025-08-179.69 GWh
2025-08-1810.3 GWh
2025-08-1910.6 GWh
2025-08-2010.3 GWh
2025-08-2110.6 GWh
2025-08-2211.1 GWh
2025-08-2311.0 GWh
2025-08-2411.5 GWh
2025-08-2512.5 GWh
2025-08-2612.7 GWh
2025-08-2711.5 GWh
2025-08-2811.8 GWh
2025-08-2911.2 GWh
2025-08-309.81 GWh
2025-08-319.93 GWh
2025-09-0110.0 GWh
2025-09-0211.0 GWh
2025-09-034.02 GWh
2025-09-0411.6 GWh
2025-09-0511.0 GWh
2025-09-0610.1 GWh
2025-09-0710.00 GWh
2025-09-0810.9 GWh
2025-09-0910.9 GWh
2025-09-1011.0 GWh
2025-09-1110.6 GWh
2025-09-1210.5 GWh
2025-09-1310.0 GWh
2025-09-149.74 GWh
2025-09-1510.5 GWh
2025-09-1611.5 GWh
2025-09-1711.3 GWh
2025-09-1810.8 GWh
2025-09-1910.6 GWh
2025-09-209.85 GWh
2025-09-219.81 GWh
2025-09-2210.6 GWh
2025-09-2310.8 GWh
2025-09-2410.8 GWh
2025-09-2510.6 GWh
2025-09-2610.5 GWh
2025-09-279.85 GWh
2025-09-289.91 GWh
2025-09-2910.6 GWh
2025-09-3010.7 GWh
2025-10-0110.7 GWh
2025-10-0210.8 GWh
2025-10-0310.6 GWh
2025-10-049.76 GWh
2025-10-0510.0 GWh
2025-10-0611.0 GWh
2025-10-0711.0 GWh
2025-10-0810.8 GWh
2025-10-0911.0 GWh
2025-10-1010.9 GWh
2025-10-1110.6 GWh
2025-10-1210.9 GWh
2025-10-1312.0 GWh
2025-10-1412.3 GWh
2025-10-1512.6 GWh
2025-10-1612.6 GWh
2025-10-1711.3 GWh
2025-10-1811.5 GWh
2025-10-1911.5 GWh
2025-10-2012.0 GWh
2025-10-2112.4 GWh
2025-10-2212.3 GWh
2025-10-2311.5 GWh
2025-10-2411.9 GWh
2025-10-2511.9 GWh
2025-10-2612.7 GWh
2025-10-2713.0 GWh
2025-10-2813.6 GWh
2025-10-2912.5 GWh
2025-10-3013.8 GWh
2025-10-3113.5 GWh
2025-11-0111.3 GWh
2025-11-0212.5 GWh
2025-11-0313.7 GWh
2025-11-0413.1 GWh
2025-11-0512.6 GWh
2025-11-0612.8 GWh
2025-11-0712.9 GWh
2025-11-0812.7 GWh
2025-11-0912.2 GWh
2025-11-1012.1 GWh
2025-11-1113.1 GWh
2025-11-1212.9 GWh
2025-11-1312.5 GWh
2025-11-1412.7 GWh
2025-11-1511.6 GWh
2025-11-1611.5 GWh
2025-11-1713.0 GWh
2025-11-1813.9 GWh
2025-11-1914.4 GWh
2025-11-2013.4 GWh
2025-11-2113.6 GWh
2025-11-2212.4 GWh
2025-11-2312.5 GWh
2025-11-2414.6 GWh
2025-11-2515.3 GWh
2025-11-2614.1 GWh
2025-11-2712.5 GWh
2025-11-2812.7 GWh
2025-11-2913.8 GWh
2025-11-3015.1 GWh
2025-12-0115.7 GWh
2025-12-0214.8 GWh
2025-12-0314.7 GWh
2025-12-0415.0 GWh
2025-12-0513.9 GWh
2025-12-0613.1 GWh
2025-12-0712.9 GWh
2025-12-0813.4 GWh
2025-12-0913.4 GWh
2025-12-1012.7 GWh
2025-12-1113.2 GWh
2025-12-1212.7 GWh
2025-12-1312.4 GWh
2025-12-1412.7 GWh
2025-12-1513.0 GWh
2025-12-1613.4 GWh
2025-12-1714.1 GWh
2025-12-1814.8 GWh
2025-12-1915.6 GWh
2025-12-2014.8 GWh
2025-12-2114.4 GWh
2025-12-2215.0 GWh
2025-12-2315.8 GWh
2025-12-2414.8 GWh
2025-12-2514.5 GWh
2025-12-2615.6 GWh
2025-12-2715.7 GWh
2025-12-2816.3 GWh
2025-12-2916.7 GWh
2025-12-3017.3 GWh
2025-12-3116.9 GWh
2026-01-0115.6 GWh
2026-01-0214.3 GWh
2026-01-0312.8 GWh
2026-01-0413.3 GWh
2026-01-0515.0 GWh
2026-01-0616.0 GWh
2026-01-0716.3 GWh
2026-01-0816.1 GWh
2026-01-0914.6 GWh
2026-01-1014.6 GWh
2026-01-1113.8 GWh
2026-01-1213.5 GWh
2026-01-1312.7 GWh
2026-01-1413.1 GWh
2026-01-1513.9 GWh
2026-01-1614.0 GWh
2026-01-1714.3 GWh
2026-01-1814.7 GWh
2026-01-1915.4 GWh
2026-01-2015.7 GWh
2026-01-2116.4 GWh
2026-01-2216.9 GWh
2026-01-2316.2 GWh
2026-01-2416.6 GWh
2026-01-2517.2 GWh
2026-01-2617.6 GWh
2026-01-2716.4 GWh
2026-01-2814.7 GWh
2026-01-2913.9 GWh
2026-01-3013.6 GWh
2026-01-3112.4 GWh
2026-02-0112.9 GWh
2026-02-0214.0 GWh
2026-02-0313.7 GWh
2026-02-0413.0 GWh
2026-02-0513.5 GWh
2026-02-0613.7 GWh
2026-02-0713.1 GWh
2026-02-0813.2 GWh
2026-02-0914.2 GWh
2026-02-1014.3 GWh
2026-02-1114.1 GWh
2026-02-1214.3 GWh
2026-02-1313.9 GWh
2026-02-1413.3 GWh
2026-02-1513.5 GWh
2026-02-1616.2 GWh
2026-02-1715.7 GWh
2026-02-1816.1 GWh
2026-02-1916.1 GWh
2026-02-2016.6 GWh
2026-02-2115.0 GWh
2026-02-2213.5 GWh
2026-02-2314.3 GWh
2026-02-2414.9 GWh
2026-02-2515.3 GWh
2026-02-2614.7 GWh
2026-02-2714.1 GWh
2026-02-2813.6 GWh
2026-03-0113.3 GWh
2026-03-0213.8 GWh
2026-03-0313.4 GWh
2026-03-0413.3 GWh
2026-03-0513.6 GWh
2026-03-0613.7 GWh
2026-03-0712.1 GWh
2026-03-0811.8 GWh
2026-03-0915.0 GWh
2026-03-1015.5 GWh
2026-03-1115.1 GWh
2026-03-1215.0 GWh
2026-03-1316.9 GWh
2026-03-1414.7 GWh
2026-03-1514.4 GWh
2026-03-1613.5 GWh
2026-03-1713.0 GWh
2026-03-1812.6 GWh
2026-03-1912.8 GWh
2026-03-2012.4 GWh
2026-03-2112.3 GWh
2026-03-2213.2 GWh
2026-03-2314.4 GWh
2026-03-2414.2 GWh
2026-03-2514.1 GWh
2026-03-2614.3 GWh
2026-03-2713.7 GWh
2026-03-2811.9 GWh
2026-03-2913.3 GWh
2026-03-3014.4 GWh
2026-03-3113.6 GWh
2026-04-0113.5 GWh
2026-04-0213.6 GWh
2026-04-0312.5 GWh
2026-04-0411.4 GWh
2026-04-0510.6 GWh
2026-04-0611.0 GWh
2026-04-0711.5 GWh
2026-04-0812.1 GWh
2026-04-0911.7 GWh
2026-04-1011.1 GWh
2026-04-1110.6 GWh
2026-04-1211.1 GWh
2026-04-1311.8 GWh
2026-04-1413.3 GWh
2026-04-1513.7 GWh
2026-04-1613.2 GWh
2026-04-1712.3 GWh
2026-04-1810.7 GWh
2026-04-1910.2 GWh
2026-04-2010.6 GWh
2026-04-2110.6 GWh
2026-04-2211.9 GWh
2026-04-2311.9 GWh
2026-04-2411.5 GWh
2026-04-2510.8 GWh
2026-04-2610.7 GWh
2026-04-2711.7 GWh
2026-04-2812.1 GWh
2026-04-2911.5 GWh
2026-04-3011.1 GWh
2026-05-0110.7 GWh
2026-05-0210.0 GWh
2026-05-0310.2 GWh
2026-05-0411.0 GWh
2026-05-0510.7 GWh
2026-05-0610.9 GWh
2026-05-0711.0 GWh
2026-05-0810.7 GWh
2026-05-099.94 GWh
2026-05-109.88 GWh
2026-05-1110.7 GWh
2026-05-1211.0 GWh
2026-05-1311.0 GWh
2026-05-1411.1 GWh
2026-05-1512.0 GWh
2026-05-1611.3 GWh
2026-05-1711.2 GWh
2026-05-1811.1 GWh
2026-05-1910.6 GWh
2026-05-2010.5 GWh
2026-05-2110.6 GWh
2026-05-2210.3 GWh
2026-05-239.33 GWh
2026-05-249.35 GWh
2026-05-259.88 GWh
2026-05-2610.7 GWh
2026-05-2710.7 GWh
2026-05-2810.8 GWh
2026-05-2910.3 GWh
2026-05-309.69 GWh
2026-05-319.76 GWh
2026-06-0110.6 GWh
2026-06-0211.2 GWh
2026-06-0310.6 GWh
2026-06-0410.3 GWh
2026-06-0510.2 GWh
2026-06-069.76 GWh
2026-06-079.88 GWh
2026-06-0810.6 GWh
2026-06-0910.7 GWh
2026-06-1010.7 GWh
2026-06-1110.9 GWh
2026-06-1210.5 GWh
2026-06-1310.5 GWh
2026-06-1411.2 GWh
2026-06-1512.7 GWh
2026-06-1611.9 GWh
2026-06-1711.2 GWh
2026-06-1811.3 GWh
2026-06-1911.3 GWh
2026-06-209.97 GWh
2026-06-2110.1 GWh
2026-06-2211.6 GWh
2026-06-2312.5 GWh
2026-06-2412.7 GWh
2026-06-2510.8 GWh
2026-06-2610.4 GWh
2026-06-279.76 GWh
2026-06-289.77 GWh
2026-06-2910.6 GWh
2026-06-3010.5 GWh
2026-07-0110.5 GWh
2026-07-0210.3 GWh
2026-07-039.92 GWh
2026-07-049.35 GWh
2026-07-059.67 GWh
2026-07-0611.3 GWh
2026-07-0711.1 GWh
2026-07-0810.8 GWh
2026-07-0911.0 GWh
2026-07-1010.7 GWh
2026-07-1110.1 GWh
2026-07-129.77 GWh
2026-07-1310.8 GWh
2026-07-1411.5 GWh
2026-07-1511.7 GWh
2026-07-1610.3 GWh
2026-07-1710.4 GWh
2026-07-189.98 GWh
2026-07-1910.3 GWh
2026-07-2011.8 GWh
2026-07-2113.3 GWh
2026-07-2213.7 GWh
2026-07-2312.2 GWh
2026-07-2411.7 GWh
2026-07-2510.2 GWh
2026-07-2610.0 GWh
2026-07-2711.2 GWh
2026-07-2811.1 GWh
2026-07-2911.1 GWh
2026-07-3011.0 GWh
2026-07-3111.2 GWh
2026-08-019.88 GWh
2026-08-029.54 GWh
2026-08-0310.5 GWh
2026-08-0411.1 GWh
2026-08-0511.7 GWh
2026-08-0612.1 GWh
2026-08-0712.1 GWh
2026-08-0811.1 GWh
2026-08-0910.5 GWh
2026-08-1011.0 GWh
2026-08-1111.2 GWh
2026-08-1211.7 GWh
2026-08-1311.5 GWh
2026-08-1411.1 GWh
2026-08-1510.1 GWh
2026-08-1610.1 GWh
2026-08-1711.3 GWh
2026-08-1811.4 GWh
2026-08-1911.5 GWh
2026-08-2012.0 GWh
2026-08-2111.5 GWh
2026-08-2210.2 GWh
2026-08-2310.2 GWh
2026-08-2411.3 GWh
2026-08-2511.8 GWh
2026-08-2611.3 GWh
2026-08-2711.0 GWh
2026-08-2810.6 GWh
2026-08-299.64 GWh
2026-08-309.74 GWh
2026-08-3110.6 GWh
2026-09-0110.3 GWh
2026-09-0210.4 GWh
2026-09-0310.4 GWh
2026-09-0410.1 GWh
2026-09-059.43 GWh
2026-09-069.44 GWh
2026-09-079.79 GWh
2026-09-0810.6 GWh
2026-09-0911.0 GWh
2026-09-1010.6 GWh
2026-09-1110.3 GWh
2026-09-129.63 GWh
2026-09-139.98 GWh
2026-09-14n/a

Source: U.S. Energy Information Administration (EIA). (US Government work, public domain) Data as of 2026-09-13. Daily totals are EIA's own daily aggregation in the balancing authority's reporting time zone.

Year by Year

Summed from EIA daily operator data
YearDemandNet generationLargest sourceDays reported
2026 (partial) 3.10 TWh 1.65 TWh Hydro 100.0% 256
2025 4.53 TWh 2.28 TWh Hydro 100.0% 365
2024 4.56 TWh 2.20 TWh Hydro 100.0% 366
2023 4.80 TWh 2.02 TWh Hydro 100.0% 365
2022 4.96 TWh 2.76 TWh Hydro 100.0% 365
2021 4.90 TWh 2.70 TWh Hydro 100.0% 365
2020 4.80 TWh 2.69 TWh Hydro 100.0% 366
2019 4.85 TWh 1.61 TWh Hydro 100.0% 365

A year is partial when EIA has not published every day; 2025 is the latest complete year. Operator totals differ slightly from annual statistics, which are compiled later from plant surveys.

Source: U.S. Energy Information Administration (EIA). (US Government work, public domain) Data as of 2026-09-13.

Records

From EIA operator data held by World Power Monitor
RecordValueWhen
Highest daily demand, 2019 onward21.5 GWh2022-12-22 (22 December 2022)
Highest hourly demand since 2026-06-16 (16 June 2026)702 MW22 Jul 2026, 15:00 PDT (UTC-07:00)

Source: U.S. Energy Information Administration (EIA). (US Government work, public domain) Data as of 2026-09-13.

Power Flows With Neighbours

Net totals, 2026-08-16 (16 August 2026) to 2026-09-14 (14 September 2026)
NeighbourDirectionNet energy
BPA TPWR imports 229 GWh
PSEI TPWR exports 26.0 GWh

Source: U.S. Energy Information Administration (EIA). (US Government work, public domain) Data as of 2026-09-14.