Spain electrical grid reaches 86.5% substation saturation

electrical grid saturation Spanish substations water reservoir levels energy capacity hydrological reserves

Spain's electrical grid is facing significant saturation, with 86.5% of its 6,127 operational substations currently at full capacity. According to data from the Foro Industria y Energía (FIE) and Opina 360, only 13.5% of substations have available access capacity. This represents a net loss of 282.2 MW of available capacity since March, dropping from 7,400.8 MW to 7,118.6 MW.

Juan Francisco Caro, director of Opina 360, noted that despite government measures introduced in March via Royal Decree-law 7/2026 to prevent capacity hoarding, the grid remains nearly as saturated as it was six months ago. Regional disparities are stark: the Basque Country reports 100% saturation with zero available capacity, while provinces such as Álava, Guipúzcoa, Vizcaya, Málaga, Albacete, Guadalajara, Salamanca, and Valladolid also show 100% saturation.

In terms of water resources, Spanish reservoirs have concluded the summer at 62.6% of their total capacity, holding 35,073 cubic hectometers. This figure is higher than the 2025 records and exceeds the average of the last decade, despite recent extreme heat and low rainfall in the Mediterranean region.

Entities

Foro Industria y Energía · Juan Francisco Caro · Ministerio para la Transición Ecológica y el Reto Demográfico · Opina 360 · Spain

Claims

What the coverage asserts, and how many sources carry each claim.

[○ 1 SOURCE] The peninsular water reserve currently holds 35,073 cubic hectometers. okdiario.com
[○ 1 SOURCE] Spanish reservoirs have ended the summer at 62.6% of their total capacity. okdiario.com
[● 2 SOURCES] Out of 6,127 operational substations in Spain, 5,301 are saturated. www.elmundo.es · cronicadecantabria.com
[● 2 SOURCES] 86.5% of Spanish electrical substations are currently saturated. www.elmundo.es · cronicadecantabria.com
[● 2 SOURCES] The system has seen a net loss of 282.2 MW of available capacity, dropping from 7,400.8 MW to 7,118.6 MW. www.elmundo.es · cronicadecantabria.com
[● 2 SOURCES] Despite new government regulations intended to free up capacity, the network remains nearly as saturated as it was six months ago. www.elmundo.es · cronicadecantabria.com