DEMAND 2024
Maximum Demand
Information based on provisional data as of January 2025
The highest annual value for the peninsula was recorded in winter, just like last year, although it remained lower than previous values.
As in the previous year, the national daily peak demand for 2024 was recorded in summer, specifically on 1 August, with 822 GWh, 1.9% lower than last year's peak. However, the hourly peak demand occurred in winter, as it did in 2023, on 11 January from 20 a 21 h, with 40.5 GWh, 0.8% lower than the previous year.
The winter hourly demand peak for the peninsula was lower than last year's by 2.1%. It is well below the historical maximum and that of 2021, which coincided with the cold snap that swept the peninsula at the beginning of January.
Annual evolution of peninsular instantaneous demand peaks
All-time winter high: December 17, 2007.
The annual peninsular hourly maximum was recorded on 11 January between 20-21 h, at 38,199 MWh, which represents a 1.4% decrease compared to the winter maximum in 2023, but is 1.1% higher than that recorded in 2022.
Annual evolution of peninsular hourly and daily demand peaks
Winter: January-May / October-December.
Load curves for days of maximum hourly demand
MWh
Evolution of the coverage of maximum hourly demand
GWh
Other renewables: Includes biogas, biomass, marine hydro, and geothermal.
Pumped storage: Pure pumped storage + estimated mixed pumped storage.
Combined cycle: Includes operation in open-cycle mode.
Peninsula-Balearic Islands link: Positive value: energy input into the system; negative value: energy output from the system.
International exchange balance: Positive value: import-oriented balance; negative value: export-oriented balance. Increment values are not calculated when exchange balances have different signs.
Coverage of maximum hourly demand
Electricity demand
Variation and components
Electricity demand
Final demand: IRE