Mitigating the Grid Collapse on the Iberian Peninsula – and Why This Must Become Standard
Author: Dr. Nenad Končar, M.Sc.Eng.
Date: May 2, 2025
A system collapse — but not for everyone
When the Iberian power grid collapsed in seconds on April 28, 2025, life came to a standstill. But not everywhere.
According to AENA, the Spanish airport authority, backup systems enabled terminals to keep operating even amid the worst energy crisis in the region’s history.
And they weren’t alone:
— in many cases remained operational thanks to local microgrids and battery systems, supported by emergency diesel generators.
What saved us — and why isn't it everywhere?
Batteries and microgrids are no longer “extras” — they are core security infrastructure for a world where:
How much would it actually cost to avoid darkness next time?
For less than 10% of the damage caused by the collapse, we could deploy:
Comparison:
Damage in Spain alone: €1.6 billion
Cost to install 1,000 battery-backed microgrids: < €1 billion
From reaction to resilience
Instead of reacting after the fact, it’s time for a new logic:
Adriadiesel offers the solution
Our containerized systems:
Conclusion: Every community needs a Plan B — and that’s a microgrid
The Iberian collapse showed who was prepared and who wasn’t.
Next time, that difference may go beyond interrupted services — it may mean lives, health, and national security.
Contact
Adriadiesel is ready to help plan, equip, and implement battery-based microgrids for:
Is €1.6 billion enough to prevent a grid collapse?
How much did the Iberian blackout really cost – and what could have been done with that money?
Author: Dr. Nenad Končar, MSc EE
Date: May 2, 2025
€1.6 billion – the cost of inaction
In April 2025, the Iberian Peninsula experienced a historic power grid collapse. Millions in Spain and Portugal were left without electricity.
According to Spain’s leading business association (CEOE), the damages amounted to at least €1.6 billion – in Spain alone.
Other sources, like RBC Capital, estimate the cost at €2.25 to €4.5 billion, making this the most expensive energy incident in European history.
But the key question is: Could it have been avoided?
And if yes – what could €1.6 billion have achieved?
What could have been done with €1.6 billion?
Grid collapses are rare – but not random. They usually result from:
With €1.6 billion, we could have built:
| Battery Strategy | Capacity | Estimated Cost (€) | Coverage |
| Regional battery hubs (10x) | 50 MWh x 10 | ~€150 million | Cities with >200,000 residents |
| National grid stabilization | 500 MWh | ~€600–750 million | Full frequency and voltage support |
| Distributed black-start units | 100 locations | ~€300 million | Restart capability across Iberia |
| Surplus for upgrades and control | — | ~€400–500 million | Battery replacement, EMS, control systems |
Total cost: ~€1.5 billion – less than a single collapse.
Not just protection – but a return on investment
Battery systems don’t just protect – they:
How did we get here? A gap in EU grid strategy
The EU plans to invest €584 billion in grid upgrades by 2030 (European Commission).
Yet the Iberian incident shows:
Spain and Portugal are energy leaders – but even the most advanced grids are vulnerable without proper battery deployment.
Adriadiesel’s solution: Modular, fast, scalable
Adriadiesel is developing containerized battery systems using second-life EV batteries:
These systems could have mitigated or entirely prevented the Iberian collapse – and they are available today.
Conclusion: Pay now – or pay more later
€1.6 billion can either be written off as a loss, or invested to ensure it never happens again.
The technology exists.
The economics work.
All that’s missing is a strategy shift – from reactive to resilient.
Contact us.
If you're a grid operator, utility, regulator, or investor – Adriadiesel is ready to partner.
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The weld-on piece identified by code number K 81183 is an essential fabrication component used in assembling or repairing the exhaust piping of the ZV40/48 diesel engine. Designed for strong, leak-proof connections, this part is welded directly onto exhaust system sections to ensure durability and optimal flow of exhaust gases. Its robust construction withstands high temperatures and corrosive gases, making it ideal for marine and industrial engine environments. By enabling precise customization of the exhaust path, it supports both efficiency and compliance with emissions standards.
The expansion bolt with code number K 34127 is a specialized fastener used in securing the upper part of the piston in the Adriadiesel/Jugoturbina/Zgoda/Sulzer ZV40/48 diesel engine. Designed to endure high thermal loads, this bolt compensates for expansion and contraction during engine operation, maintaining consistent tension and alignment. Its ability to flex slightly under heat ensures structural integrity and prevents stress fractures in the piston assembly. This precision-engineered bolt plays a critical role in extending piston life and ensuring reliable engine performance under extreme conditions.
The rubber plate identified with code number H 87616 serves as a versatile insulating and cushioning element within the ASL25 diesel engine system. Typically used between structural components, it absorbs vibrations, prevents direct metal-to-metal contact, and helps maintain alignment during engine operation. Its durable and flexible material resists chemical exposure and mechanical stress, making it ideal for use in harsh engine environments. This seemingly simple component plays an essential role in reducing wear and enhancing overall operational stability.