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Wednesday, 31 March 2021

Daily statistics of the Spanish peninsular's electricity system

Definitive data to 10/11/2022 • 18:50:35

Daily energy balance (GWh) (1) Day Month %∆ Month Annual %∆ Annual Rolling year (2) %∆ Rolling year
Hydro 87 3.715 19,3 12.290 26,9 33.237 20,2
Pumped storage (3) 7 331 9,0 1.053 37,2 3.037 61,1
Nuclear 146 4.833 -6,6 14.391 -6,2 54.800 -2,3
Coal 11 243 -49,0 978 -54,9 3.609 -46,1
Combined cycle (4) 45 1.649 19,0 4.925 -30,1 36.234 -28,1
Wind 206 5.522 0,3 18.777 31,8 58.331 10,3
Solar PV 64 1.651 59,2 3.420 32,5 15.763 64,7
Solar thermal 7 355 50,5 596 8,4 4.584 -4,7
Other renewables (5) 13 359 3,8 1.113 8,5 4.559 22,0
Cogeneration (6) 77 2.250 0,7 6.486 -6,0 26.580 -7,8
Non-renewables waste (7) 5 174 4,6 510 4,6 1.919 -3,1
Renewable waste (7) 2 62 20,6 172 5,7 615 -13,2
Generation 671 21.143 5,6 64.710 6,1 243.269 -0,8
Pumped storage consumption -7 -464 -22,7 -1.865 33,9 -5.100 45,1
Balearic-Peninsula link (8) -4 -128 13,5 -380 4,1 -1.441 -14,3
Exchange balance (9) -14 190 -61,6 242 -92,0 510 -92,9
Demand (b.c) 645 20.741 4,7 62.708 0,8 237.237 -4,1
Adjusted demand (10) - - 3,7 - -0,2 - -4,4
Pérdidas en transporte -9 -380 12,5 -1.298 24,0 -4.160 9,8
Demand (distribution) 636 20.360 4,6 61.410 0,4 233.078 -4,3

Generation structure

31/03/2021
March
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 %∆ Anual Rolling year (2) %∆ Rolling year
Total (11) 379 11.663 13,4 36.367 28,7 117.089 17,8

Maximum demand

Maximum Demand Day Month Year Historical
Instantaneous Peak Load (MW) 31.044 (11:06) 35.579 (20:38 - 09/03) 42.225 (14:05 - 08/01) 45.450 (18:53 - 17/12/2007)
Peak Load (MWh) 30.419 (12h) 35.096 (21h - 08/03) 41.483 (14h - 08/01) 44.876 (20h - 17/12/2007)
Daily demand (GWh) 645 722 (09/03) 835 (13/01) 906 (18/12/2007)

Hydraulic data

Hydraulic data for 31 of march of 2021

Hydroelectric reserves (GWh) Maximum capacity (A) Today (B) (B/A) % Δ Day 31/03/2020 (C) (C/A) % 01/01/2021 (D) (D/A) %
Annual regime 8.967 6.783 75,6 -12 6.398 71,4 5.578 62,2
Hyperannual regime 9.571 5.362 56,0 0 4.525 47,3 3.851 40,2
Total 18.538 12.145 65,5 -12 10.922 58,9 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 75 3.199 0,8 73,9 15.016 1,3 29,8 34.459 1,2 30,6
  • 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.