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Saturday, 31 July 2021

Daily statistics of the Spanish peninsular's electricity system

Definitive data to 14/11/2022 • 22:23:36

Daily energy balance (GWh) (1) Day Month %∆ Month Annual %∆ Annual Rolling year (2) %∆ Rolling year
Hydro 39 2.209 20,2 21.585 10,7 32.706 7,5
Pumped storage (3) 7 116 -30,7 1.667 1,3 2.773 14,1
Nuclear 164 5.119 -0,8 31.766 1,5 56.229 4,8
Coal 8 302 -0,4 2.315 -31,6 3.729 -35,3
Combined cycle (4) 37 3.025 -48,1 15.960 -20,9 34.135 -23,9
Wind 225 4.122 0,5 35.096 20,5 59.774 14,7
Solar PV 76 2.567 37,7 12.234 37,2 18.239 46,1
Solar thermal 25 828 4,1 2.992 6,2 4.713 5,7
Other renewables (5) 13 352 0,9 2.604 5,1 4.598 14,4
Cogeneration (6) 65 2.239 -2,7 15.297 -0,7 26.892 -1,9
Non-renewables waste (7) 6 193 48,9 1.229 19,8 2.100 12,3
Renewable waste (7) 2 70 120,2 427 51,1 750 25,1
Generation 666 21.142 -7,6 143.170 5,2 246.639 2,7
Pumped storage consumption -42 -181 -40,3 -2.805 -5,1 -4.477 -0,3
Balearic-Peninsula link (8) -1 -46 -72,7 -714 -9,3 -1.353 -8,2
Exchange balance (9) 21 666 - 2.448 -34,7 1.981 -59,8
Demand (b.c) 644 21.582 -1,7 142.100 4,4 242.790 1,6
Adjusted demand (10) - - 0,6 - 4,5 - 1,7
Transmission losses -12 -316 3,8 -2.509 13,9 -4.214 8,6
Demand (distribution) 632 21.266 -1,7 139.591 4,3 238.577 1,4

Generation structure

31/07/2021
July
2021
Rolling year aggregate
  • No renewable:
    • Coal
    • Nuclear
    • Pumped storage
    • Combined cycle
    • Non-renewables waste
    • Cogeneration
  • Renewable:
    • Other renewables
    • Solar thermal
    • Hydro
    • Solar PV
    • Renewable waste
    • Wind

Renewable energy

Renewable energy (GWh) Day Month %∆ Month Annual %∆ Annual Rolling year (2) %∆ Rolling year
Total (11) 380 10.148 13,0 74.937 18,7 120.780 16,0

Maximum demand

Maximum Demand Day Month Year Historical
Instantaneous Peak Load (MW) 30.256 (13:40) 37.385 (14:43 - 22/07) 42.225 (14:05 - 08/01) 45.450 (18:53 - 17/12/2007)
Peak Load (MWh) 29.816 (14h) 36.937 (15h - 22/07) 41.483 (14h - 08/01) 44.876 (20h - 17/12/2007)
Daily demand (GWh) 644 762 (22/07) 835 (13/01) 906 (18/12/2007)

Hydraulic data

Hydraulic data for 31 of july of 2021

Hydroelectric reserves (GWh) Maximum capacity (A) Today (B) (B/A) % Δ Day 31/07/2020 (C) (C/A) % 01/01/2021 (D) (D/A) %
Annual regime 8.967 4.642 51,8 -41 5.894 65,7 5.578 62,2
Hyperannual regime 9.571 4.103 42,9 -13 5.184 54,2 3.851 40,2
Total 18.538 8.745 47,2 -55 11.078 59,8 9.430 50,9
Producible hydroelectric energy Day Month Index (month) % P> (12) Year Index (year) % P> (12) Rolling year (2) Index (rolling year) % P> (12)
GWh 1 538 0,6 79,8 20.911 1,0 53,5 30.372 1,0 44,8
  • Note: All variance percentages shown refer to the same period in the previous year.
  • (1) Allocation of production units according to primary fuel.
  • (2) Rolling year: cumulative value in the last 365 days, or 366 days in leap years.
  • (3) Pure pumped storage + mixed pumped storage estimate.
  • (4) Includes operation in open cycle mode.
  • (5) Includes biogas, biomass, marine energy and geothermal. The values of increase and rolling year include waste up until 31 December 2014.
  • (6) The increment and rolling year values include waste up to December 31, 2014.
  • (7) Generation included in other renewables and cogeneration on 12/31/2014.
  • (8) Positive value: incoming energy; negative value: outgoing energy.
  • (9) Positive value: import balance; negative value: export balance
  • (10) After factoring in the influence of seasonal and working patterns
  • (11) Includes hydro, wind, solar photovoltaic, solar thermal, other renewables and renewable waste.
  • (12) Percentage of probability of exceeding the index value.