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Tuesday, 29 April 2025 08:29

Grid Balancing in Unexpected Situations

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Balancing the electrical grid in unexpected situations

A power plant using containers with second-life EV batteries could have helped avoid today's power outages in Spain and Portugal by:

  1. Frequency and Voltage Stabilization
    • Batteries can instantly (within milliseconds) deliver or absorb electricity.
    • When grid oscillations occur (as they did today), battery systems can quickly smooth out fluctuations, prevent grid failure, and give operators time to rebalance the system.
  2. Black Start Support
    • If the entire grid collapses, a power source is needed that can start conventional plants (thermal, hydro) from scratch.
    • Battery power plants can act as black start solutions by immediately supplying electricity needed to start large generators.
  3. Microgrids for Critical Infrastructure
    • In a full grid collapse, battery containers can maintain local operation of hospitals, communication hubs, traffic control, etc., until the broader grid is restored.
  4. Rapid Deployment and Flexibility
    • Containerized battery systems can be quickly relocated and installed wherever emergency support is needed.

How many containers would be required?

  • A typical container using second-life batteries (e.g., from Tesla Model S/X) can have 1–2 MWh capacity.
  • Large battery power plants have capacities of 100–250 MW and 200–500 MWh.

To stabilize a national grid during a major disturbance, you'd need:

  • 200–400 MW instantaneous power,
  • and at least 400–800 MWh capacity to sustain delivery for 1–2 hours.

Calculation:

  • One container = ~1.5 MWh (average)
  • For 600 MWh → approximately 400 containers

Conclusion:

  • Serious national support (e.g., Spain or Portugal) needs around 300–500 containers.
  • Local stabilization (e.g., Madrid or an industrial zone) could use 50–100 containers.

Note:

  • Second-life EV batteries retain around 70–80% of original capacity.
  • Their performance and lifespan are reduced, so oversizing is required for long-term reliability.
Monday, 28 April 2025 05:37

Spacer Sleeve (Code Number H 33032)

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The spacer sleeve, with code number H 33032, serves as a crucial element in achieving the correct axial distance between components within the ASL25 diesel engine. By providing precise spacing, it ensures proper alignment and distribution of mechanical loads, thereby enhancing the stability and durability of the engine structure. Made from robust materials, the spacer sleeve resists deformation and wear under operational stress. Its accurate design and fit are essential for maintaining the mechanical integrity and smooth operation of the engine over time.

Monday, 28 April 2025 05:36

Sealing Ring (Code Number H 27223)

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The sealing ring, identified by code number H 27223, is a vital part of the sealing systems in the ASL25 diesel engine. Its main function is to prevent fluid or gas leakage between engine components, thus preserving internal pressure and protecting critical areas from contamination. Manufactured from durable, heat-resistant materials, the sealing ring ensures tight, lasting seals even under high-temperature and high-pressure conditions. Proper installation and inspection of this component are key to maintaining optimal engine performance and preventing costly breakdowns.

Monday, 28 April 2025 05:36

Ball Cap (Code Number H 27051)

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The ball cap, designated by code number H 27051, is a precision-engineered component within the Adriadiesel/Jugoturbina/Zgoda/Sulzer ASL25 diesel engine. Its primary role is to provide a stable housing or support for ball joints or spherical elements in the mechanical system, ensuring smooth pivoting movements under load. Made from high-strength materials to resist wear and deformation, the ball cap is essential for maintaining alignment and reducing friction in the engine’s dynamic components. Its reliability directly contributes to the overall efficiency and lifespan of the machine.

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