Balearic Islands: electricity demand rose 4.2% in October, and the cable to the Iberian Peninsula covered 19.7%

Electricity demand in the Balearic Islands rose by 4.8% in October after adjusting for calendar and temperature effects, according to monthly data published by Red Eléctrica (REE), the operator of the Spanish power system. In gross terms, consumption was estimated at 521,433 MWh, 4.2% above October 2025.

The figures. In the first ten months of the year, the archipelago's demand reached 5,774,409 MWh, 6.2% more than in the same period last year. Combined cycle remained the leading source of generation, with 67% of the energy produced on the islands, followed by solar photovoltaics with 10.3% and gas turbines with 10%. Solar output rose by 12.7% year on year.

Renewables. According to REE, renewables grew by 24.2% compared with the same period last year and reached a 13.9% share of the archipelago's generation. The Palma daily Ultima Hora presented this growth as applying to the January–October period.

The interconnection. The subsea cable between the Iberian Peninsula and Mallorca covered 19.7% of the islands' electricity demand in October. The transmission grid plan to 2030, discussed on 26 October by the Ministry for the Ecological Transition and the Balearic government, gives priority to completing a second link with the mainland and includes a third link between Mallorca and Menorca, according to La Noción.

What comes next. The same plan includes 11 new substations and work on 222 km of lines, 150 km of them new. The proposal is still going through approval, after the review of 2,566 submissions received in the public consultation.

Real-time data for the country are on the country page