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

Portugal Daily Load Shape and Duck Curve by Hour, 23 August to 19 September 2026

In the 28 complete local days from 23 August to 19 September 2026, electricity demand in Portugal averaged 5,926 MW and typically peaked at 20:00 local time (7,214 MW) and bottomed out at 04:00 (4,802 MW). With solar and wind taken off, the remaining load fell to 2,366 MW at 13:00 and then rose 2,948 MW between 16:00 to 19:00. Hours are local clock time (Europe/Lisbon).

Key Facts

  • Over 28 complete local days from 23 August to 19 September 2026, average demand in Portugal was 5,926 MW. The hour of the day with the highest average demand was 20:00 local time (7,214 MW) and the lowest was 04:00 (4,802 MW).
  • The largest three hour rise in average demand was 905 MW, between 17:00 to 20:00 local time.
  • The single highest hour of demand in the 30 day window was 8,082 MW, in the hour starting 14 Sept 2026, 20:00 WEST (UTC+01:00).
  • Solar output averaged 2,730 MW at its 13:00 peak, 46% of average demand.
  • Demand minus solar and wind (net load) averaged 3,764 MW, fell to 2,366 MW at 13:00 and rose 2,948 MW over the three hours from 16:00 to 19:00, 50% of average demand.

Average Day by Local Hour

28 days to 2026-09-19, Europe/Lisbon time
Portugal average demand and net generation by local hour Average electricity demand in Portugal by local clock hour over 28 complete local days from 23 August to 19 September 2026. It was lowest at 04:00 (4,802 MW) and highest at 20:00 (7,214 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 Portugal by local clock hour over 28 complete local days from 23 August to 19 September 2026. It was lowest at 04:00 (4,802 MW) and highest at 20:00 (7,214 MW). Net generation is the power produced inside the grid, so it differs from demand by net imports.
Mean MW by local hour, 2026-08-23 to 2026-09-19
Portugal average demand and net generation by local hour
Local hour (Europe/Lisbon)DemandNet generation
00:005,517 MW4,164 MW
01:005,224 MW3,893 MW
02:005,002 MW3,684 MW
03:004,877 MW3,635 MW
04:004,802 MW3,718 MW
05:004,858 MW4,367 MW
06:005,147 MW5,083 MW
07:005,460 MW4,650 MW
08:005,988 MW3,306 MW
09:006,207 MW2,390 MW
10:006,188 MW2,149 MW
11:006,194 MW2,175 MW
12:006,142 MW2,178 MW
13:006,016 MW2,173 MW
14:006,062 MW2,125 MW
15:006,082 MW2,267 MW
16:006,175 MW2,733 MW
17:006,309 MW3,385 MW
18:006,586 MW5,029 MW
19:006,999 MW6,567 MW
20:007,214 MW6,707 MW
21:006,860 MW5,779 MW
22:006,397 MW4,839 MW
23:005,908 MW4,608 MW
Portugal duck curve: demand and net load by local hour Average demand and net load (demand minus solar and wind) in Portugal by local clock hour over 28 complete local days from 23 August to 19 September 2026. Net load was lowest at 13:00 (2,366 MW) and then rose 2,948 MW between 16:00 to 19:00. 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 Portugal by local clock hour over 28 complete local days from 23 August to 19 September 2026. Net load was lowest at 13:00 (2,366 MW) and then rose 2,948 MW between 16:00 to 19:00.
Mean MW by local hour, 2026-08-23 to 2026-09-19
Portugal duck curve: demand and net load by local hour
Local hour (Europe/Lisbon)DemandNet load (demand minus solar and wind)
00:005,517 MW4,237 MW
01:005,224 MW3,905 MW
02:005,002 MW3,649 MW
03:004,877 MW3,513 MW
04:004,802 MW3,431 MW
05:004,858 MW3,487 MW
06:005,147 MW3,762 MW
07:005,460 MW3,955 MW
08:005,988 MW3,873 MW
09:006,207 MW3,428 MW
10:006,188 MW3,059 MW
11:006,194 MW2,786 MW
12:006,142 MW2,547 MW
13:006,016 MW2,366 MW
14:006,062 MW2,472 MW
15:006,082 MW2,523 MW
16:006,175 MW2,709 MW
17:006,309 MW3,238 MW
18:006,586 MW4,439 MW
19:006,999 MW5,657 MW
20:007,214 MW5,957 MW
21:006,860 MW5,580 MW
22:006,397 MW5,128 MW
23:005,908 MW4,638 MW
Portugal average solar and wind output by local hour Average solar and wind generation in Portugal by local clock hour over 28 complete local days from 23 August to 19 September 2026. Solar peaked at 13:00 at 2,730 MW. 0 750 1,500 2,250 3,000 00:0003:0006:0009:0012:0015:0018:0021:00
Average solar and wind generation in Portugal by local clock hour over 28 complete local days from 23 August to 19 September 2026. Solar peaked at 13:00 at 2,730 MW.
Mean MW by local hour, 2026-08-23 to 2026-09-19
Portugal average solar and wind output by local hour
Local hour (Europe/Lisbon)SolarWind
00:000 MW1,280 MW
01:000 MW1,318 MW
02:000 MW1,353 MW
03:000 MW1,364 MW
04:000 MW1,372 MW
05:000 MW1,371 MW
06:001 MW1,383 MW
07:00120 MW1,385 MW
08:00847 MW1,267 MW
09:001,690 MW1,089 MW
10:002,173 MW955 MW
11:002,502 MW906 MW
12:002,692 MW903 MW
13:002,730 MW919 MW
14:002,643 MW947 MW
15:002,560 MW1,000 MW
16:002,393 MW1,073 MW
17:001,930 MW1,141 MW
18:00980 MW1,167 MW
19:00162 MW1,180 MW
20:006 MW1,251 MW
21:004 MW1,275 MW
22:000 MW1,269 MW
23:000 MW1,271 MW
Average Portugal demand, net generation, solar, wind and net load by local hour
Local hourDemandNet generationSolarWindNet load
00:00 5,517 MW 4,164 MW 0 MW 1,280 MW 4,237 MW
01:00 5,224 MW 3,893 MW 0 MW 1,318 MW 3,905 MW
02:00 5,002 MW 3,684 MW 0 MW 1,353 MW 3,649 MW
03:00 4,877 MW 3,635 MW 0 MW 1,364 MW 3,513 MW
04:00 4,802 MW 3,718 MW 0 MW 1,372 MW 3,431 MW
05:00 4,858 MW 4,367 MW 0 MW 1,371 MW 3,487 MW
06:00 5,147 MW 5,083 MW 1 MW 1,383 MW 3,762 MW
07:00 5,460 MW 4,650 MW 120 MW 1,385 MW 3,955 MW
08:00 5,988 MW 3,306 MW 847 MW 1,267 MW 3,873 MW
09:00 6,207 MW 2,390 MW 1,690 MW 1,089 MW 3,428 MW
10:00 6,188 MW 2,149 MW 2,173 MW 955 MW 3,059 MW
11:00 6,194 MW 2,175 MW 2,502 MW 906 MW 2,786 MW
12:00 6,142 MW 2,178 MW 2,692 MW 903 MW 2,547 MW
13:00 6,016 MW 2,173 MW 2,730 MW 919 MW 2,366 MW
14:00 6,062 MW 2,125 MW 2,643 MW 947 MW 2,472 MW
15:00 6,082 MW 2,267 MW 2,560 MW 1,000 MW 2,523 MW
16:00 6,175 MW 2,733 MW 2,393 MW 1,073 MW 2,709 MW
17:00 6,309 MW 3,385 MW 1,930 MW 1,141 MW 3,238 MW
18:00 6,586 MW 5,029 MW 980 MW 1,167 MW 4,439 MW
19:00 6,999 MW 6,567 MW 162 MW 1,180 MW 5,657 MW
20:00 7,214 MW 6,707 MW 6 MW 1,251 MW 5,957 MW
21:00 6,860 MW 5,779 MW 4 MW 1,275 MW 5,580 MW
22:00 6,397 MW 4,839 MW 0 MW 1,269 MW 5,128 MW
23:00 5,908 MW 4,608 MW 0 MW 1,271 MW 4,638 MW

Each value is the mean over 28 complete local days from 23 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 8,082 MW; it is a published reading, not an average, and is not part of the profile above.

Source: ENTSO-E Transparency Platform (transparency.entsoe.eu), CC BY 4.0. Aggregated and converted by World Power Monitor; ENTSO-E does not endorse this site. (ENTSO-E Terms of Use plus CC BY 4.0 for listed data items) 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 Europe/Lisbon. 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 28 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 28 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.