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

CPLE 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 CPLE averaged 8,286 MW and typically peaked at 16:00 local time (10,764 MW) and bottomed out at 04:00 (5,946 MW). With solar taken off, the remaining load fell to 5,946 MW at 04:00 and then rose 1,333 MW between 14:00 to 17:00. Hours are local clock time (America/New_York).

Key Facts

  • Over 29 complete local days from 22 August to 19 September 2026, average demand in CPLE was 8,286 MW. The hour of the day with the highest average demand was 16:00 local time (10,764 MW) and the lowest was 04:00 (5,946 MW).
  • The largest three hour rise in average demand was 281 MW, between 14:00 to 17:00 local time.
  • The single highest hour of demand in the 30 day window was 12,621 MW, in the hour starting 2 Sept 2026, 16:00 EDT (UTC-04:00).
  • Solar output averaged 2,233 MW at its 12:00 peak, 27% of average demand.
  • Demand minus solar (net load) averaged 7,551 MW, fell to 5,946 MW at 04:00 and rose 1,333 MW over the three hours from 14:00 to 17:00, 16% of average demand.

Average Day by Local Hour

29 days to 2026-09-19, America/New_York time
CPLE average demand and net generation by local hour Average electricity demand in CPLE by local clock hour over 29 complete local days from 22 August to 19 September 2026. It was lowest at 04:00 (5,946 MW) and highest at 16:00 (10,764 MW). Net generation is the power produced inside the grid, so it differs from demand by net imports. 0 3,000 6,000 9,000 12,000 00:0003:0006:0009:0012:0015:0018:0021:00
Average electricity demand in CPLE by local clock hour over 29 complete local days from 22 August to 19 September 2026. It was lowest at 04:00 (5,946 MW) and highest at 16:00 (10,764 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
CPLE average demand and net generation by local hour
Local hour (America/New_York)DemandNet generation
00:006,928 MW7,113 MW
01:006,513 MW6,930 MW
02:006,199 MW6,783 MW
03:006,001 MW6,646 MW
04:005,946 MW6,621 MW
05:006,089 MW6,768 MW
06:006,397 MW6,898 MW
07:006,574 MW6,899 MW
08:006,912 MW7,422 MW
09:007,439 MW8,201 MW
10:008,102 MW8,933 MW
11:008,810 MW9,629 MW
12:009,490 MW10,219 MW
13:0010,059 MW10,615 MW
14:0010,437 MW10,787 MW
15:0010,656 MW10,716 MW
16:0010,764 MW10,498 MW
17:0010,718 MW10,070 MW
18:0010,474 MW9,527 MW
19:0010,040 MW9,107 MW
20:009,617 MW8,836 MW
21:008,967 MW8,483 MW
22:008,225 MW7,923 MW
23:007,511 MW7,436 MW
CPLE duck curve: demand and net load by local hour Average demand and net load (demand minus solar) in CPLE by local clock hour over 29 complete local days from 22 August to 19 September 2026. Net load was lowest at 04:00 (5,946 MW) and then rose 1,333 MW between 14:00 to 17:00. 0 3,000 6,000 9,000 12,000 00:0003:0006:0009:0012:0015:0018:0021:00
Average demand and net load (demand minus solar) in CPLE by local clock hour over 29 complete local days from 22 August to 19 September 2026. Net load was lowest at 04:00 (5,946 MW) and then rose 1,333 MW between 14:00 to 17:00.
Mean MW by local hour, 2026-08-22 to 2026-09-19
CPLE duck curve: demand and net load by local hour
Local hour (America/New_York)DemandNet load (demand minus solar)
00:006,928 MW6,928 MW
01:006,513 MW6,513 MW
02:006,199 MW6,199 MW
03:006,001 MW6,001 MW
04:005,946 MW5,946 MW
05:006,089 MW6,089 MW
06:006,397 MW6,397 MW
07:006,574 MW6,420 MW
08:006,912 MW6,168 MW
09:007,439 MW6,039 MW
10:008,102 MW6,262 MW
11:008,810 MW6,675 MW
12:009,490 MW7,257 MW
13:0010,059 MW7,865 MW
14:0010,437 MW8,361 MW
15:0010,656 MW8,800 MW
16:0010,764 MW9,265 MW
17:0010,718 MW9,694 MW
18:0010,474 MW10,068 MW
19:0010,040 MW9,967 MW
20:009,617 MW9,611 MW
21:008,967 MW8,967 MW
22:008,225 MW8,225 MW
23:007,511 MW7,511 MW
CPLE average solar output by local hour Average solar generation in CPLE by local clock hour over 29 complete local days from 22 August to 19 September 2026. Solar peaked at 12:00 at 2,233 MW. 0 625 1,250 1,875 2,500 00:0003:0006:0009:0012:0015:0018:0021:00
Average solar generation in CPLE by local clock hour over 29 complete local days from 22 August to 19 September 2026. Solar peaked at 12:00 at 2,233 MW.
Mean MW by local hour, 2026-08-22 to 2026-09-19
CPLE average solar output by local hour
Local hour (America/New_York)Solar
00:000 MW
01:000 MW
02:000 MW
03:000 MW
04:000 MW
05:000 MW
06:000 MW
07:00153 MW
08:00744 MW
09:001,401 MW
10:001,840 MW
11:002,135 MW
12:002,233 MW
13:002,193 MW
14:002,076 MW
15:001,857 MW
16:001,499 MW
17:001,024 MW
18:00407 MW
19:0072 MW
20:007 MW
21:000 MW
22:000 MW
23:000 MW
Average CPLE demand, net generation, solar and net load by local hour
Local hourDemandNet generationSolarNet load
00:00 6,928 MW 7,113 MW 0 MW 6,928 MW
01:00 6,513 MW 6,930 MW 0 MW 6,513 MW
02:00 6,199 MW 6,783 MW 0 MW 6,199 MW
03:00 6,001 MW 6,646 MW 0 MW 6,001 MW
04:00 5,946 MW 6,621 MW 0 MW 5,946 MW
05:00 6,089 MW 6,768 MW 0 MW 6,089 MW
06:00 6,397 MW 6,898 MW 0 MW 6,397 MW
07:00 6,574 MW 6,899 MW 153 MW 6,420 MW
08:00 6,912 MW 7,422 MW 744 MW 6,168 MW
09:00 7,439 MW 8,201 MW 1,401 MW 6,039 MW
10:00 8,102 MW 8,933 MW 1,840 MW 6,262 MW
11:00 8,810 MW 9,629 MW 2,135 MW 6,675 MW
12:00 9,490 MW 10,219 MW 2,233 MW 7,257 MW
13:00 10,059 MW 10,615 MW 2,193 MW 7,865 MW
14:00 10,437 MW 10,787 MW 2,076 MW 8,361 MW
15:00 10,656 MW 10,716 MW 1,857 MW 8,800 MW
16:00 10,764 MW 10,498 MW 1,499 MW 9,265 MW
17:00 10,718 MW 10,070 MW 1,024 MW 9,694 MW
18:00 10,474 MW 9,527 MW 407 MW 10,068 MW
19:00 10,040 MW 9,107 MW 72 MW 9,967 MW
20:00 9,617 MW 8,836 MW 7 MW 9,611 MW
21:00 8,967 MW 8,483 MW 0 MW 8,967 MW
22:00 8,225 MW 7,923 MW 0 MW 8,225 MW
23:00 7,511 MW 7,436 MW 0 MW 7,511 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 generation. The single highest hour of demand in the whole 30 day window was 12,621 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/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.