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Friday, 31 May 2024

Daily statistics of the Spanish peninsular's electricity system

Definitive data to 14/08/2025 • 13:38:02

Daily energy balance (GWh) (1) Day Month %∆ Month Annual %∆ Annual Rolling year (2) %∆ Rolling year
Hydro 81 2.965 107,2 18.780 63,4 33.046 60,1
Nuclear 119 3.543 -6,0 20.286 -12,7 51.707 -7,8
Coal 6 214 -13,6 1.133 -32,5 3.385 -45,0
Combined cycle (3) 45 1.530 -46,6 9.209 -34,5 35.031 -37,9
Wind 263 4.130 -22,6 27.317 -4,7 60.005 -3,2
Solar PV 159 5.035 32,2 16.414 14,3 38.764 24,0
Solar thermal 21 600 19,9 1.465 -20,1 4.327 -2,2
Other renewables (4) 10 311 -7,8 1.466 -6,3 3.488 -16,2
Cogeneration (5) 29 1.326 -21,6 6.469 -18,4 15.832 1,5
Non-renewables waste (6) 2 68 15,2 374 -16,8 1.110 -21,7
Renewable waste (6) 1 37 11,7 227 -14,0 671 1,2
Generation 735 19.758 -1,6 103.141 -2,3 247.366 -4,4
Pumped storage (7) 16 633 31,2 2.678 9,8 5.444 13,4
Batteries 0 1 70,9 3 350,4 6 854,9
Pumped storage consumption -31 -968 33,0 -4.343 11,3 -8.636 12,7
Batteries consumption 0 -1 75,4 -4 325,0 -8 798,7
Balearic-Peninsula link (8) -4 -118 -0,8 -575 12,2 -1.489 55,0
Exchange balance (9) -86 -993 -40,7 -4.626 -45,5 -10.095 -55,8
Demand (b.c) 631 18.313 1,5 96.273 1,3 232.589 0,2
Adjusted demand (10) - - 1,0 - 1,6 - 0,6
Transmission losses -14 -372 0,1 -2.170 6,0 -4.942 4,8
Demand (distribution) 617 17.941 1,6 94.103 1,2 227.646 0,1

Generation structure

31/05/2024
May
2024
Rolling year aggregate
  • No renewable:
    • Coal
    • Nuclear
    • 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 %∆ Anual Rolling year (2) %∆ Rolling year
Total (11) 534 13.077 14,3 65.669 12,9 140.300 14,0

Maximum demand

Maximum Demand Day Month Year Historical
Instantaneous Peak Load (MW) 29.588 (21:38) 31.339 (21:44 - 30/05) 38.272 (20:56 - 09/01) 45.450 (18:53 - 17/12/2007)
Peak Load (MWh) 28.940 (22h) 30.733 (22h - 30/05) 38.199 (21h - 11/01) 44.876 (20h - 17/12/2007)
Daily demand (GWh) 631 644 (30/05) 776 (10/01) 906 (18/12/2007)

Hydraulic data

Hydraulic data for 31 of may of 2024

Hydroelectric reserves (GWh) Maximum capacity (A) Today (B) (B/A) % Δ Day 31/05/2023 (C) (C/A) % 01/01/2024 (D) (D/A) %
Annual regime 8.967 7.354 82,0 -15 5.129 57,2 5.363 59,8
Hyperannual regime 9.571 6.818 71,2 0 4.236 44,3 4.071 42,5
Total 18.538 14.173 76,5 -15 9.365 50,5 9.434 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 66 3.190 1,1 29,1 23.507 1,3 18,3 37.854 1,3 10,6
  • 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) Includes operation in open cycle mode.
  • (4) Includes biogas, biomass, marine energy and geothermal. The values of increase and rolling year include waste up until 31 December 2014.
  • (5) The increment and rolling year values include waste up to December 31, 2014.
  • (6) Generation included in other renewables and cogeneration on 12/31/2014.
  • (7) Pure pumped storage + mixed pumped storage estimate.
  • (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.