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Thursday, 30 September 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 1.396 -16,5 24.864 7,8 32.425 3,0
Pumped storage (3) 7 118 -37,0 1.944 -2,3 2.705 4,0
Nuclear 166 4.891 0,4 41.808 1,2 56.248 4,9
Coal 20 478 69,1 3.113 -22,3 3.906 -30,3
Combined cycle (4) 157 4.297 -5,5 23.583 -20,8 32.160 -23,5
Wind 83 3.126 -21,1 41.820 14,3 59.028 11,3
Solar PV 67 1.889 32,2 16.471 35,8 19.268 38,7
Solar thermal 17 447 -1,0 4.101 2,2 4.626 3,8
Other renewables (5) 13 396 0,1 3.409 5,2 4.640 11,5
Cogeneration (6) 71 2.162 -6,3 19.561 -1,7 26.656 -2,0
Non-renewables waste (7) 6 167 -3,7 1.594 15,7 2.113 14,0
Renewable waste (7) 1 56 -4,9 550 35,2 750 26,1
Generation 648 19.423 -4,5 182.819 2,8 244.523 1,6
Pumped storage consumption -8 -161 -27,4 -3.153 -8,3 -4.344 -7,0
Balearic-Peninsula link (8) -1 -38 -67,7 -791 -27,1 -1.132 -21,1
Exchange balance (9) 22 445 - 3.554 23,4 3.953 9,4
Demand (b.c) 660 19.669 1,5 182.430 3,5 243.000 2,1
Adjusted demand (10) - - 1,7 - 3,7 - 2,4
Transmission losses -9 -288 -5,7 -3.124 10,8 -4.212 7,4
Demand (distribution) 651 19.381 1,6 179.305 3,4 238.788 2,0

Generation structure

30/09/2021
September
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) 221 7.310 -8,3 91.216 14,8 120.735 12,2

Maximum demand

Maximum Demand Day Month Year Historical
Instantaneous Peak Load (MW) 31.684 (20:37) 35.196 (13:48 - 07/09) 42.225 (14:05 - 08/01) 45.450 (18:53 - 17/12/2007)
Peak Load (MWh) 30.787 (21h) 35.010 (14h - 07/09) 41.483 (14h - 08/01) 44.876 (20h - 17/12/2007)
Daily demand (GWh) 660 732 (07/09) 835 (13/01) 906 (18/12/2007)

Hydraulic data

Hydraulic data for 30 of september of 2021

Hydroelectric reserves (GWh) Maximum capacity (A) Today (B) (B/A) % Δ Day 30/09/2020 (C) (C/A) % 01/01/2021 (D) (D/A) %
Annual regime 8.967 3.327 37,1 -11 4.178 46,6 5.578 62,2
Hyperannual regime 9.571 2.987 31,2 -7 4.236 44,3 3.851 40,2
Total 18.538 6.314 34,1 -18 8.414 45,4 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 21 586 0,9 37,2 21.760 1,0 54,1 30.325 1,0 44,6
  • 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.