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

AZPS Daily Load Shape and Duck Curve by Hour, 22 August to 19 September 2026

In the 29 complete local days from 22 August to 19 September 2026, electricity demand in AZPS averaged 6,364 MW and typically peaked at 16:00 local time (7,382 MW) and bottomed out at 07:00 (5,480 MW). With solar and wind taken off, the remaining load fell to 3,397 MW at 09:00 and then rose 1,785 MW between 15:00 to 18:00. Hours are local clock time (America/Phoenix).

Key Facts

  • Over 29 complete local days from 22 August to 19 September 2026, average demand in AZPS was 6,364 MW. The hour of the day with the highest average demand was 16:00 local time (7,382 MW) and the lowest was 07:00 (5,480 MW).
  • The largest three hour rise in average demand was 320 MW, between 14:00 to 17:00 local time.
  • The single highest hour of demand in the 30 day window was 9,437 MW, in the hour starting 9 Sept 2026, 09:00 MST (UTC-07:00).
  • Solar output averaged 2,279 MW at its 12:00 peak, 36% of average demand.
  • Demand minus solar and wind (net load) averaged 5,171 MW, fell to 3,397 MW at 09:00 and rose 1,785 MW over the three hours from 15:00 to 18:00, 28% of average demand.

Average Day by Local Hour

29 days to 2026-09-19, America/Phoenix time
AZPS average demand and net generation by local hour Average electricity demand in AZPS by local clock hour over 29 complete local days from 22 August to 19 September 2026. It was lowest at 07:00 (5,480 MW) and highest at 16:00 (7,382 MW). Net generation is the power produced inside the grid, so it differs from demand by net imports. 0 2,000 4,000 6,000 8,000 00:0003:0006:0009:0012:0015:0018:0021:00
Average electricity demand in AZPS by local clock hour over 29 complete local days from 22 August to 19 September 2026. It was lowest at 07:00 (5,480 MW) and highest at 16:00 (7,382 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
AZPS average demand and net generation by local hour
Local hour (America/Phoenix)DemandNet generation
00:005,974 MW3,078 MW
01:005,848 MW2,961 MW
02:005,739 MW3,037 MW
03:005,502 MW3,109 MW
04:005,486 MW3,189 MW
05:005,608 MW3,195 MW
06:005,593 MW2,876 MW
07:005,480 MW2,644 MW
08:005,540 MW2,472 MW
09:005,753 MW2,368 MW
10:006,024 MW2,824 MW
11:006,323 MW3,136 MW
12:006,590 MW3,651 MW
13:006,826 MW4,189 MW
14:007,048 MW4,504 MW
15:007,238 MW4,918 MW
16:007,382 MW5,118 MW
17:007,368 MW5,235 MW
18:007,181 MW5,064 MW
19:007,293 MW5,047 MW
20:007,224 MW4,725 MW
21:006,887 MW4,337 MW
22:006,615 MW4,012 MW
23:006,221 MW3,490 MW
AZPS duck curve: demand and net load by local hour Average demand and net load (demand minus solar and wind) in AZPS by local clock hour over 29 complete local days from 22 August to 19 September 2026. Net load was lowest at 09:00 (3,397 MW) and then rose 1,785 MW between 15:00 to 18:00. 0 2,000 4,000 6,000 8,000 00:0003:0006:0009:0012:0015:0018:0021:00
Average demand and net load (demand minus solar and wind) in AZPS by local clock hour over 29 complete local days from 22 August to 19 September 2026. Net load was lowest at 09:00 (3,397 MW) and then rose 1,785 MW between 15:00 to 18:00.
Mean MW by local hour, 2026-08-22 to 2026-09-19
AZPS duck curve: demand and net load by local hour
Local hour (America/Phoenix)DemandNet load (demand minus solar and wind)
00:005,974 MW5,645 MW
01:005,848 MW5,538 MW
02:005,739 MW5,434 MW
03:005,502 MW5,220 MW
04:005,486 MW5,234 MW
05:005,608 MW5,370 MW
06:005,593 MW5,211 MW
07:005,480 MW4,171 MW
08:005,540 MW3,466 MW
09:005,753 MW3,397 MW
10:006,024 MW3,593 MW
11:006,323 MW3,863 MW
12:006,590 MW4,095 MW
13:006,826 MW4,331 MW
14:007,048 MW4,615 MW
15:007,238 MW4,839 MW
16:007,382 MW5,205 MW
17:007,368 MW5,940 MW
18:007,181 MW6,624 MW
19:007,293 MW6,909 MW
20:007,224 MW6,833 MW
21:006,887 MW6,487 MW
22:006,615 MW6,220 MW
23:006,221 MW5,853 MW
AZPS average solar and wind output by local hour Average solar and wind generation in AZPS by local clock hour over 29 complete local days from 22 August to 19 September 2026. Solar peaked at 12:00 at 2,279 MW. 0 625 1,250 1,875 2,500 00:0003:0006:0009:0012:0015:0018:0021:00
Average solar and wind generation in AZPS by local clock hour over 29 complete local days from 22 August to 19 September 2026. Solar peaked at 12:00 at 2,279 MW.
Mean MW by local hour, 2026-08-22 to 2026-09-19
AZPS average solar and wind output by local hour
Local hour (America/Phoenix)SolarWind
00:0020 MW309 MW
01:0011 MW299 MW
02:004 MW301 MW
03:000 MW282 MW
04:000 MW252 MW
05:000 MW238 MW
06:00161 MW222 MW
07:001,125 MW185 MW
08:001,927 MW147 MW
09:002,206 MW150 MW
10:002,278 MW153 MW
11:002,276 MW183 MW
12:002,279 MW215 MW
13:002,243 MW252 MW
14:002,155 MW278 MW
15:002,072 MW327 MW
16:001,848 MW328 MW
17:001,086 MW342 MW
18:00230 MW327 MW
19:0069 MW315 MW
20:0061 MW330 MW
21:0052 MW349 MW
22:0047 MW348 MW
23:0032 MW336 MW
Average AZPS demand, net generation, solar, wind and net load by local hour
Local hourDemandNet generationSolarWindNet load
00:00 5,974 MW 3,078 MW 20 MW 309 MW 5,645 MW
01:00 5,848 MW 2,961 MW 11 MW 299 MW 5,538 MW
02:00 5,739 MW 3,037 MW 4 MW 301 MW 5,434 MW
03:00 5,502 MW 3,109 MW 0 MW 282 MW 5,220 MW
04:00 5,486 MW 3,189 MW 0 MW 252 MW 5,234 MW
05:00 5,608 MW 3,195 MW 0 MW 238 MW 5,370 MW
06:00 5,593 MW 2,876 MW 161 MW 222 MW 5,211 MW
07:00 5,480 MW 2,644 MW 1,125 MW 185 MW 4,171 MW
08:00 5,540 MW 2,472 MW 1,927 MW 147 MW 3,466 MW
09:00 5,753 MW 2,368 MW 2,206 MW 150 MW 3,397 MW
10:00 6,024 MW 2,824 MW 2,278 MW 153 MW 3,593 MW
11:00 6,323 MW 3,136 MW 2,276 MW 183 MW 3,863 MW
12:00 6,590 MW 3,651 MW 2,279 MW 215 MW 4,095 MW
13:00 6,826 MW 4,189 MW 2,243 MW 252 MW 4,331 MW
14:00 7,048 MW 4,504 MW 2,155 MW 278 MW 4,615 MW
15:00 7,238 MW 4,918 MW 2,072 MW 327 MW 4,839 MW
16:00 7,382 MW 5,118 MW 1,848 MW 328 MW 5,205 MW
17:00 7,368 MW 5,235 MW 1,086 MW 342 MW 5,940 MW
18:00 7,181 MW 5,064 MW 230 MW 327 MW 6,624 MW
19:00 7,293 MW 5,047 MW 69 MW 315 MW 6,909 MW
20:00 7,224 MW 4,725 MW 61 MW 330 MW 6,833 MW
21:00 6,887 MW 4,337 MW 52 MW 349 MW 6,487 MW
22:00 6,615 MW 4,012 MW 47 MW 348 MW 6,220 MW
23:00 6,221 MW 3,490 MW 32 MW 336 MW 5,853 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. Net load is demand minus solar and wind generation. The single highest hour of demand in the whole 30 day window was 9,437 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/Phoenix. 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.