Costa del Sol Power Grid on the Brink After Benahavís Wildfire Exposes Critical Vulnerability
The Western Costa del Sol came alarmingly close to a widespread electricity blackout during a wildfire in Benahavís. Flames threatened the Costasol facility—the region’s only operating high-voltage transformer substation—forcing the entire coastal strip to run on a single, unbacked node. Energy officials warn that a safety shutdown of this critical site would have severed electricity to homes, resorts, and commercial centers for weeks.
Manuel Larrasa, Andalusia’s electrification commissioner, revealed the severity of the crisis during an industry forum organized by Málaga Hoy. Larrasa noted that the high-voltage grid operates without physical space for expansion or reserve capacity at its primary hub, necessitating an emergency summer contingency plan to prevent system failure during peak demand periods.
A Single Facility Supporting the Entire Coast
The region’s electrical system relies on a two-tier network: the high-voltage transmission grid managed nationwide by Red Eléctrica de España (REE), and local distribution networks operated primarily by Endesa to supply residential developments, businesses, and public infrastructure.
The Costasol substation, located along the AP-7 motorway, currently serves as the sole high-voltage backup node in service across the western district. Technical experts emphasize that its geographic placement leaves it directly exposed to soaring summer temperatures and woodland fires. In the event of an emergency disconnection, restoring power would require a gradual, multi-week stabilization process rather than a quick reboot.
The vulnerability was demonstrated when a wildfire broke out near the Ermita del Rosario hermitage in Benahavís. The blaze burned through approximately 3.8 square kilometers of brush and woodland before firefighters fully extinguished it eight days later.
Legal Stalemate Halts Completed Benahavís Substation
A second high-voltage facility in Benahavís was fully constructed in 2019 to balance the regional load, but it remains inactive. The facility cannot be energized because two final support pylons for the connecting 220,000-volt power line have not been erected.
| Facility | Current Status | Operator / Owner | Cause of Impasse |
| Costasol Substation | Operational (At maximum capacity) | Red Eléctrica de España (REE) | Sole active high-voltage station; vulnerable to wildfires |
| Benahavís Substation | Built in 2019 (Inactive) | Red Eléctrica de España (REE) | Blocked by land ownership litigation over final two pylons |
| Third Planned Substation | Planning Stage | Red Eléctrica de España (REE) | Pending development and grid integration |
The delay stems from a legal challenge mounted by the owner of the plot designated for the penultimate pylon. The landowner appealed the expropriation terms and contested the project’s environmental impact assessment in court.
On May 27, Spain’s Supreme Court ruled in favor of the regional government (Junta de Andalucía) and REE, establishing that environmental permits cannot be challenged through that specific legal procedure. The Supreme Court remanded the case back to Andalusia’s High Court (TSJA) for a final decree. Regional authorities are waiting for the TSJA to grant security forces access to the property so construction crews can install the remaining structures and complete the grid connection.
Félix Romero, president of the Mancomunidad of Western Costa del Sol councils, emphasized that resolving this technical bottleneck is urgent to provide the region with an infrastructure capacity that matches its population density and economic importance.
Frequently Asked Questions
Why did the Benahavís fire threaten electricity across the entire coast?
The Costasol substation is the only active high-voltage supply node in the western Costa del Sol. If fire hazards force an emergency shutdown at Costasol, local distribution substations lose their primary power source from the national grid.
What is the status of the inactive Benahavís substation?
Physical construction of the substation finished in 2019, but it lacks two pylons required to connect to the 220 kV power line. Following a favorable Supreme Court ruling in May, the project awaits a final decree from Andalusia’s High Court to permit land access.
What measures are being taken until the legal dispute is resolved?
Andalusia’s Ministry of Industry, Energy and Mines has called for an emergency summer contingency plan to monitor load levels and minimize the risk of overloads or sudden outages.
The HIGH NEWS Assessment
The situation on the Costa del Sol highlights how protracted legal disputes can undermine essential public infrastructure. Allowing a major international tourist destination and growing population center to depend on a single, fire-exposed high-voltage station represents an unacceptable operational risk.
It is the view of this newsroom that Andalusia’s High Court must prioritize the resolution of this case. Granting access to finish the remaining transmission towers will allow the Benahavís substation to go live, providing the redundant capacity required to secure the region’s economic stability and public safety.
Official Sources
- Junta de Andalucía — Ministry of Industry, Energy and Mines: Regional energy planning documents and official statements on high-voltage grid infrastructure. juntadeandalucia.es
- Red Eléctrica de España (REE): Data regarding the national electricity transmission network and infrastructure projects in Andalusia. ree.es
- Spanish Judiciary (Poder Judicial): Supreme Court ruling of May 27 regarding environmental assessment challenges for power line infrastructure. poderjudicial.es
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