The spiral seal bearing code H 81153 is engineered to offer advanced sealing performance in rotating or reciprocating engine parts of the ASL25 diesel engine. Its spiral geometry increases surface contact and resilience against pressure fluctuations and mechanical wear. This seal is especially suited for high-speed or high-temperature environments where traditional seals might degrade quickly. By maintaining fluid integrity and reducing the risk of leakage, the spiral seal contributes to longer engine lifespan and minimized maintenance needs.
The O-ring with code number H 82514 is a fundamental sealing component in the ASL25 diesel engine from Adriadiesel/Jugoturbina/Zgoda/Sulzer. Designed to ensure leak-proof connections between engine components, this ring-shaped rubber element is crucial in preventing the escape of fluids or gases under pressure. Its elastic structure allows it to adapt tightly between metal surfaces, maintaining a secure seal even under thermal expansion or vibration. The O-ring is vital for engine efficiency and safety, especially in high-pressure fuel, oil, or air systems.
How much did the Iberian blackout really cost – and what could have been done with that money
Author: Dr. Nenad Končar, M.Sc.Eng.
Date: April 30, 2025
€1.6 billion in damages – in Spain alone
According to preliminary estimates from the Spanish employers’ association CEOE, the damage caused by the recent massive power outage in Spain is at least €1.6 billion.
This includes:
What could have been done with that money?
The question arises naturally:
Could the damage have been prevented by smart investment in grid resilience – specifically, in battery systems?
The answer is: yes, many times over.
How much does a serious battery system for grid stabilization cost?
Adriadiesel is developing containerized battery power plants based on second-life EV batteries.
With €1.6 billion, it would be possible to build:
Not just a cost — but an investment
Battery systems are not passive costs. They:
Time for a new approach to grid security
Instead of recording billions in damages every few years, the question should be reversed:
Why not invest €100 million in advance – to avoid €1.6 billion in losses later?
Decentralized battery systems:
Conclusion
The April 2025 blackout cost as much as a complete national battery defense — yet nothing was built.
It’s time Europe — especially the Iberian Peninsula — stopped relying on luck and started investing in technically proven, economically viable, and readily available solutions.
Adriadiesel already offers ready-to-deploy modules today.
For partnerships, technical details, and demo systems — contact us at: This email address is being protected from spambots. You need JavaScript enabled to view it.
Confirmed: Two separate incidents occurring seconds apart
Suspected disruption in solar energy production in southwestern Spain
Grid-forming inverters not present (or inactive)
Power outages extended to Portugal, France, Andorra
Prof. Branko Grisogono:
Key role of battery energy storage systems
In the context of the above, Adriadiesel’s battery container systems can:
Author: Dr. Nenad Končar, M.Sc.Eng.
Date: April 29, 2025
Summary of a Possible Technical Cause of the Grid Collapse
According to Croatian physicist Dr. Ivica Aviani, the possible cause of the power grid collapse on the Iberian Peninsula was not an atmospheric phenomenon, but a loss of synchronization among generators within the grid. The electrical system depends on perfect alignment of frequency and phase of all generators—if even a slight difference occurs, the grid attempts to "correct" it, potentially leading to exponential amplification of oscillations.
Dr. Aviani compares this behavior to microphone feedback: when a microphone picks up noise from a speaker and sends it back to the amplifier, it creates a loop that increasingly amplifies the noise—until the system collapses. In the grid, a similar effect can arise from a small phase or voltage impulse difference, leading on a large scale to a cascading reaction and the breakdown of the common grid "shaft."
Darkness in the Iberian Peninsula: What the Grid Collapse Taught Us
The recent energy collapse that hit Spain and Portugal exposed serious weaknesses in Europe's power grid. The synchronized operation of generators, which forms the basis of a stable grid, was disrupted—likely due to a technical disturbance that triggered a cascading positive feedback reaction.
The question arises: How can Europe protect itself from such disturbances in the future?
Regardless of the Possible Source of Failure, One Possible Answer Lies in Containers with Used Batteries
Adriadiesel is developing a modular battery power plant in a container format, using "second-life" batteries from electric vehicles. These systems are not only environmentally sustainable—they are also a key tool for grid stabilization.
How Does It Work?
Advanced inverters can operate in so-called grid-forming mode (where the inverter defines voltage and frequency instead of just following them), actively stabilizing the grid and enabling operation even in the event of a main source outage, provided there is sufficient capacity and proper coordination with other sources.
An excessive share of renewable systems without advanced inverters capable of generating artificial inertia and reactive power leads to:
Furthermore, due to the constant development of new technologies, it is highly likely that any power system in the future will continue to use a set of various inverter technologies simultaneously. Most likely, the problem of inverter technology diversity will not disappear; it will only get worse.
What Does Adriadiesel Offer?
Practical Application
In a case like the one that occurred in the Iberian Peninsula, 50 to 100 Adriadiesel containers deployed around key hubs (Madrid, Barcelona, Lisbon) could:
Sustainability and Economy
These systems:
Important Regardless of the Actual Cause of the Outage
What happened now in Spain and Portugal can happen to any power system.
Regardless of the actual cause of the power grid outage/instability, sufficiently large battery energy storage systems can react quickly and powerfully enough to stabilize the power grid in real time and later quickly restore the grid for uninterrupted operation.
Because ready technical solutions exist, we urge power grid operators to urgently plan and implement the necessary backup safety systems like battery energy storage without delay.
The Future Lies in Decentralized Stability
As Europe transitions to renewable sources, it loses the natural stability offered by fossil fuel power plants. Containerized battery systems, like those developed by Adriadiesel, are key to energy security and resilience.
It's time for car batteries to get a second life—in the service of the stability of entire nations.
Contact and Partnerships
Adriadiesel invites collaboration with:
For more information, contact: This email address is being protected from spambots. You need JavaScript enabled to view it.
Other Titles of This Blog:
Renowned Croatian Physicist: 'I Don't Believe Temperature Caused the Collapse; I Suspect What Actually Happened'
Source: Jutarnji List Article
The pressure connection, designated by code number H 87603, is an essential interface point in the fluid or gas distribution system of the ASL25 diesel engine. This component enables the secure transfer of pressurized media—such as oil, fuel, or air—between different parts of the engine or connected systems. Its robust construction is designed to endure high pressure and temperature conditions, ensuring leak-free performance and maintaining system integrity. The precision engineering behind the pressure connection supports reliable engine functionality and safety in demanding operational environments.