The Blackout of April 28, 2025: A Wake-Up Call for Everyone

On April 28, 2025, an unprecedented blackout left millions of people without electricity in Spain, Portugal, and parts of southern France. Within seconds, 60% of Spain’s power supply vanished, paralyzing hospitals, airports, and communication systems. This event not only disrupted daily life but also clearly exposed the vulnerability of our energy infrastructure and the urgent need for resilient solutions to prevent future crises.
The collapse of the Iberian electrical system was a clear warning: no infrastructure is completely safe from large-scale failures. The outages affected everything from essential services to strategic sectors, endangering the safety of millions and economic stability. The inevitable question arises: are we truly ready to face another energy challenge of this magnitude?

Was it predictable? Yes. The issue that caused the blackout, according to current investigations, was not due to dangerous hackers, but simply an excess of renewable energy — by definition intermittent and unstable — compared to total production versus consumption. This can cause instability in the electrical grid both nationally and locally, with voltage and frequency variations triggering the disconnection of sub-networks due to their protections.

Of course, the solution is not to remove these protections but to adopt systems that balance production with consumption, such as energy storage.

The randomness and discontinuity of energy sources, wind and solar, together with extreme fragmentation into small plants, are factors that complicate grid integration.

It is necessary to strengthen the grid, also by conceptually modifying it using smart grids and digitalization. Finally, we must plan for adequate storage and usage capacity: for example, wind turbines may reach peak production at night when demand is low, or there may be strong generation intermittency that can still be used for hydrogen production plants.

And what if the next blackout didn’t catch you unprepared?

SIRA’s energy solutions: the key to operational continuity

At SIRA, we have been developing advanced energy solutions for years, designed to ensure operational continuity even in critical situations. Our NAT (Advanced Tactical Nanogrid) technology provides energy autonomy and stability in industrial and strategic environments, enabling companies to protect their infrastructure from blackouts and interruptions.

Thanks to our systems, you can ensure the uninterrupted operation of your activities, reduce risks, and maintain productivity even when the power grid is down. Are you ready for the next energy challenge?

Discover how our solutions can protect your company and ensure the continuity of your business, regardless of external circumstances.