Monthly Balance

In August, the consumption totaled 4 302 GWh, with a peak of 7 725 MW on day 17 at 20:45. Renewable generation supplied 52% of the consumption. Hydropower accounted for 11% of the consumption, wind power for 17%, biomass for 5%, and solar for 18%. The balance of exchanges with foreign countries was import equals to 36% of consumption.

4 302 GWh
MONTHLY CONSUMPTION
52 %
% RENEWABLE

Energy Balance

Consumption concerning the power stations’ net generation, on the selected month, on the same month of the previous year, annual cumulative value, corresponding cumulative value from the previous year, and respective variations. Production breakdown according to primary source – coal, natural gas, water, wind, sun, biomass and others – is also shown. In addition to the monthly energy values, the peak value (maximum instantaneous value) observed in the selected month, for each of the primary sources, is also presented.

 

Peak [MW]

Aug 26 [GWh]

Accumulated [GWh]

Aug 25 [GWh]

Accumulated [GWh]

Month [Variation %]

Accumulated [Variation %]

TOTAL GENERATION 8 302 3 333 32 750 3 485 33 152 -4.3 -1.2
Renewable Generation 7 581 2 311 24 354 2 360 25 500 -2.1 -4.5
Hydro 1 5 351 500 9 186 553 10 591 -9.6 -13.3
Wind 4 221 779 8 639 825 8 676 -5.5 -0.4
Solar 3 843 791 4 794 731 4 402 8.1 8.9
Wave 0 0 0 0 0 - -
Biomass 2 353 241 1 734 251 1 832 -4.0 -5.4
Cogeneration 150 102 653 105 775 -2.8 -15.8
Others 208 139 1 081 146 1 057 -4.8 2.3
Non-Renewable Generation 1 614 546 5 147 755 4 982 -27.7 3.3
Natural Gas 1 585 525 4 995 734 4 831 -28.5 3.4
Combined-Cycle 1 506 462 4 404 642 4 086 -28.2 7.8
Cogeneration 147 63 590 92 744 -30.9 -20.7
Other Thermal 3 32 21 152 21 152 -0.1 0.5
Cogeneration 3 1 7 0 14 88.5 -47.9
Others 30 20 145 20 138 -2.0 5.3
Generation from Storage   476 3 249 369 2 670 29.0 21.7
Pumped Storage Generation   473 3 237 368 2 667 28.4 21.4
Battery Injection   4 12 1 3 258.0  292.8 
CONSUMPTION FOR STORAGE 3 128 647 4 118 476 3 357 35.9 22.7
Pumping 3 093 642 4 104 475 3 353 35.3 22.4
Batteries 55 4 15 1 4 251.7 271.4  
IMPORT BALANCE 5 243 1 616 7 459 1 245 5 194 29.7 43.6
Imports (commercial schedules) 5 149 1 752 9 460 1 489 8 373 17.7 13.0
Exports (commercial schedules) 2 112 142 2 026 248 3 174 -42.8 -36.2
CONSUMPTION 7 725 4 302 36 090 4 254 34 989 1.1 3.1
1 Generation from natural inflow;
2 Includes: Forest biomass, biogas and the biodegradable fraction of municipal solid waste;
3 Includes: Fuel-oil, gas, the non-biodegradable fraction of municipal solid waste and other waste

Consumption Supply

Aug 26

Production breakdown according to primary source – coal, natural gas, water, wind, sun, biomass and others. These are available individually by selecting “Detailed” or grouped into renewables (water, wind, solar and biomass) and non-renewables (coal, natural gas and others) by selecting “Aggregated”. "Biomass" includes renewable energy cogeneration, forest biomass, biogas and the biodegradable fraction of municipal solid waste. In the "Other Thermal" category are included fuel-oil, the non-biodegradable fraction of municipal solid waste and other waste. If the import balance is positive, its contribution to the consumption of electricity in mainland Portugal is also shown.
The values presented are monthly, for the selected month and for the corresponding month of the previous year.

Aug 25

Production breakdown according to primary source – coal, natural gas, water, wind, sun, biomass and others. These are available individually by selecting “Detailed” or grouped into renewables (water, wind, solar and biomass) and non-renewables (coal, natural gas and others) by selecting “Aggregated”. "Biomass" includes renewable energy cogeneration, forest biomass, biogas and the biodegradable fraction of municipal solid waste. In the "Other Thermal" category are included fuel-oil, the non-biodegradable fraction of municipal solid waste and other waste. If the import balance is positive, its contribution to the consumption of electricity in mainland Portugal is also shown.
The values presented are monthly, for the selected month and for the corresponding month of the previous year.

Annual Consumption Supply

2026

Production breakdown according to primary source – coal, natural gas, water, wind, sun, biomass and others. These are available individually by selecting “Detailed” or grouped into renewables (water, wind, solar and biomass) and non-renewables (coal, natural gas and others) by selecting “Aggregated”. "Biomass" includes renewable cogeneration, forest biomass, biogas and the biodegradable fraction of municipal solid waste. In the "Other Thermal" category are included fuel-oil, the non-biodegradable fraction of municipal solid waste and other waste. If the import balance is positive, its contribution to the consumption of electricity in mainland Portugal is also shown.
The numbers shown are the cumulative values from the beginning of the year to the end of the selected month and the cumulative values for the same period of the previous year.

2025

Production breakdown according to primary source – coal, natural gas, water, wind, sun, biomass and others. These are available individually by selecting “Detailed” or grouped into renewables (water, wind, solar and biomass) and non-renewables (coal, natural gas and others) by selecting “Aggregated”. "Biomass" includes renewable cogeneration, forest biomass, biogas and the biodegradable fraction of municipal solid waste. In the "Other Thermal" category are included fuel-oil, the non-biodegradable fraction of municipal solid waste and other waste. If the import balance is positive, its contribution to the consumption of electricity in mainland Portugal is also shown.
The numbers shown are the cumulative values from the beginning of the year to the end of the selected month and the cumulative values for the same period of the previous year.

Transmission Network Balance

Physical balance of the National Electricity Transmission Network. The various parcels that constitute the energy input into the network and the energy output from the network are shown for the selected month. The inputs into the network are divided into Power Plants, Interconnections and RNT Substations, which, in this last case, is energy generated at the Distribution network level and injected in the Transmission Network when generation is greater then local consumption. The outputs from the network are divided into Power Plants and VHV Clients, that are clients connected directly to the Transmission Network, Interconnections, RNT Substations, that are the deliveries to the distribution networks, and Own Consumptions on facilities of the network itself.
The difference between inputs and outputs are the losses in the National Transmission Network.

 

Peak [MW]

Aug 26 [GWh]

2026 [GWh]

Aug 25 [GWh]

2025 [GWh]

ENERGY INPUT 7 497 3 985 33 715 3 757 32 037
Power Plants 6 883 2 103 21 652 2 236 21 686
Interconnections 5 243 1 707 10 064 1 357 8 230
Substations 1 162 175 1 999 164 2 120
ENERGY DELIVERED 7 332 3 886 32 898 3 669 31 272
Power Plants and VHV Clients 3 322 808 5 692 640 4 884
Pumping 3 058 636 4 059 469 3 313
Interconnections 2 510 91 2 605 111 3 036
Substations 6 406 2 985 24 590 2 917 23 341
Own Consumption   1 11 1 10
LOSSES 98 817 87 765
LOSSES [%] 2.47 2.42 2.33 2.39
Includes generators/clients HV connected to the transmission network through private lines.

Installed Capacity

Power connected to the Public Network, or power installed on thermal generators under the directive 399/2002. The additional capacity is included in the wind power producers pursuant to Decree-Law 94/2014. The historical peak values (maximum instantaneous values) are also shown for each of the primary sources.

 

Aug 26 [MW]

Peak [MW]

Peak Date

Hydro 8 385 7 277 2024-03-11 22:15
Wind 5 731 5 095 2025-03-19 10:15
Solar 5 068 3 843 2026-08-10 13:15
Wave 0 0 2008-10-01 03:15
Biomass 685 454 2022-03-04 18:30
Natural Gas 4 346 4 387 2021-01-05 21:45
Coal 1 796 2007-12-31 08:30
Other Thermal 25 2 193 2001-12-18 17:30
Batteries 65 56 2026-08-21 20:00
TOTAL 24 304 12 202 2026-01-26 19:30
Pumping 3 585 3 093 2026-08-23 13:00
Consumption   10 268 2026-01-20 19:45
Power connected to the public network or power installed on Thermal Generators
under the directive 399/2002. The wind power figure includes the additional power pursuant to Decree-Law No. 94/2014