The answer lies in what happened yesterday afternoon.
The normality of a Sunday marked by strong wind in the Canary Islands was abruptly broken at 12:13 p.m. At that moment, the clocks stopped and the screens went off throughout La Gomera. According to official sourcesthe island suffered a total “zero energy” that left 15,610 medium and low voltage points without supply. It was not just a question of lighting: the fall of the system took telecommunications with it, leaving a large part of the population without mobile coverage and plunging businesses into chaos as the dataphones became inoperative, as reported by testimonies collected by The Newspaper. The question iinevitable: again? The technical cause points again to the energetic heart of the island. As explained by Radio Televisión Canaria (RTVC)the origin was a “destabilization of one of the generators” located at the El Palmar thermal power plant. This initial failure caused what is known in electrical engineering as a load shedding or cascade effect. For safety reasons, the instability of that first piece of equipment caused the rest of the generators to fail, resulting in a general power outage. Although the Endesa company has communicated that the exact causes are under investigation, the president of the Cabildo, Casimiro Curbelo, has been more blunt pointing out the age of the infrastructure: “One of the equipment failed, possibly because its engine is old, and that caused the entire unit to destabilize.” A recovery in record time. Unlike the traumatic blackout of July 2023, which kept the island in the dark for three days and resulted in a penalty of 12.1 million euros for Endesa, the response on this occasion has been noticeably more agile. The technicians managed to reverse the situation from “zero” in just 17 minutes. The recovery was, however, “gradual.” As explained in ElDiario.esthe Minister of Ecological Transition and Energy, Mariano Hernández Zapata, warned that the process had to be slow to prevent the system from collapsing again when receiving the entire load at once. At 3:25 p.m., approximately three hours after the start of the incident, the Cabildo confirmed the restoration 100% of the service, although maintaining alert for possible “micro-cuts” of adjustment and maintenance. The technical feat that did not arrive in time. This new incident reveals a critical technological reality: the extreme vulnerability of “isolated systems”. The definitive solution is already under water, although with a bittersweet taste due to the deadlines. As detailed by Red Eléctrica de España (REE) In its planning, the ship Enterprise Cable In August 2025, the laying of what is the deepest tripolar AC cable on the planet began, descending to 1,145 meters on the seabed. This 36 kilometer engineering work, which will connect the substations of Chío (Tenerife) and El Palmar (La Gomera), is the 66kV “umbilical cord” that will allow: End isolation: La Gomera will be able to receive up to 50 MVA of energy from Tenerife in case of failure. Integrate renewables: It will make it easier for the island to advance its decarbonization goals by being able to pour clean energy into the grid. Robustness of the system: We move from a single, dependent generation model to an interconnected network model. But the irony tells itself. According to the official REE schedule, the completion of the interconnection was scheduled for the end of 2025. However, at the start of 2026, the Gomeros They have verified again thatwhile the last connections are not completed and the infrastructure comes into operation—predictably in this first quarter—, its electrical security continues to depend on a plant whose material fatigue is no longer a secret. An island on alert. Although the light has returned to homes, the feeling of uncertainty persists. The president of the Canary Islands, Fernando Clavijo, and the minister Sara Aagesen have maintained permanent contact to monitor the situation, aware that the island’s image is damaged with each blackout. La Gomera has shown to have learned its lesson in terms of emergency protocols and speed of response, but the infrastructure is still at its limit. All eyes are now on that submarine cable that, according to Casimiro Curbelois the only real guarantee that an old engine will not silence the life of an entire island again. Image | freepik and Tony Hisgett Xataka | 99% of the internet travels through submarine cables. Now there is a much more ambitious plan underway: linking the electrical grid