Monthly Balance

In December, the consumption totaled 4 501 GWh, with a peak of 8 444 MW on day 2 at 19:30. Renewable generation supplied 66% of the consumption. Hydropower accounted for 17% of the consumption, wind power for 41%, biomass for 7%, and solar for 2%. The balance of exchanges with foreign countries was import equals to 8% of consumption.

4 501 GWh
MONTHLY CONSUMPTION
66 %
% 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]

Dec 21 [GWh]

Accumulated [GWh]

Dec 20 [GWh]

Accumulated [GWh]

Month [Variation %]

Accumulated [Variation %]

TOTAL GENERATION 10 458 4 349 46 705 4 677 49 343 -7.0 -5.3
Renewable Generation 7 746 3 019 29 693 3 322 28 774 -9.1 3.2
Hydro 1 4 713 761 11 607 1 405 12 198 -45.8 -4.9
Wind 4 518 1 858 12 919 1 563 12 067 18.9 7.1
Solar 827 98 1 719 66 1 270 49.7 35.4
Biomass 2 435 301 3 449 288 3 238 4.3 6.5
Cogeneration 203 137 1 592 125 1 379 9.9 15.4
Others 238 164 1 857 164 1 859 0.0 -0.1
Non-Renewable Generation 3 238 1 159 15 415 1 185 18 958 -2.2 -18.7
Coal 0 0 694 152 2 133 -100.0 -67.4
Natural Gas 3 211 1 143 14 500 1 010 16 564 13.2 -12.5
Combined-Cycle 2 885 953 10 976 629 12 152 51.6 -9.7
Cogeneration 371 190 3 524 381 4 412 -50.1 -20.1
Other Thermal 3 30 16 221 24 262 -31.6 -15.7
Cogeneration 5 1 27 6 67 -78.5 -59.9
Others 27 15 194 18 194 -14.7 -0.4
Generation from Storage   171 1 597 169 1 612 1.0 -0.9
Pumped Storage Generation   171 1 597 169 1 612 1.0 -0.9
CONSUMPTION FOR STORAGE 2 043 220 1 988 214 1 986 2.5 0.1
Pumping 2 043 220 1 988 214 1 986 2.5 0.1
IMPORT BALANCE 4 049 372 4 753 98 1 456 281.3 226.4
Imports (commercial schedules) 4 010 715 8 957 542 6 401 31.9 39.9
Exports (commercial schedules) 2 984 340 4 201 443 4 943 -23.2 -15.0
CONSUMPTION 8 444 4 501 49 470 4 560 48 813 -1.3 1.3
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

Dec 21

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.

Dec 20

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

2021

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.

2020

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]

Dec 21 [GWh]

2021 [GWh]

Dec 20 [GWh]

2020 [GWh]

ENERGY INPUT 8 432 3 863 42 294 3 904 42 826
Power Plants 7 981 2 719 30 218 2 884 32 883
Interconnections 4 049 815 9 544 658 7 553
Substations 1 306 330 2 532 361 2 390
ENERGY DELIVERED 8 287 3 784 41 458 3 820 42 036
Power Plants and VHV Clients 2 203 349 4 045 406 4 104
Pumping 2 008 216 1 965 212 1 964
Interconnections 2 959 443 4 791 561 6 097
Substations 6 579 2 991 32 607 2 851 31 820
Own Consumption   1 15 1 15
LOSSES 79 836 84 790
LOSSES [%] 2.05 1.98 2.15 1.84
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.

 

Dec 21 [MW]

Peak [MW]

Peak Date

Hydro 7 222 6 387 2018-03-21 19:30
Wind 5 374 4 675 2021-02-20 11:00
Solar 1 397 894 2021-09-18 13:00
Wave 0 2008-10-01 03:15
Biomass 700 444 2021-03-25 11:00
Natural Gas 4 431 4 387 2021-01-05 21:45
Coal 1 796 2007-12-31 08:30
Other Thermal 28 2 193 2001-12-18 17:30
TOTAL 19 152 11 994 2018-03-07 20:00
Pumping 2 705 2 492 2021-01-08 03:45
Consumption   9 883 2021-01-12 19:30
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