Lifting Test for BESS Containers: Ensuring Structural Integrity by TLS Energy

Battery Energy Storage Systems (BESS) are critical assets in today’s energy infrastructure, used for frequency regulation, renewable integration, and grid support. As these systems are typically housed in heavy-duty containers, ensuring structural integrity during transportation, installation, and operation is essential. One of the most crucial steps in quality assurance is the lifting test—a mandatory procedure to validate the container’s ability to withstand dynamic forces during hoisting.

At TLS Energy, we specialize in the design and manufacturing of containerized BESS solutions. Serving top-tier energy clients globally, our containers are built to the highest standards. We conduct rigorous lifting tests to simulate real-world handling and certify structural safety.

What is a Lifting Test?
A lifting test is a structural assessment where a fully assembled BESS container—often loaded with steel blocks (dummy weights)—is lifted using certified lifting equipment. This test ensures the container frame, corner castings, and welds can bear the full load without deformation or damage.
In the test, simulated loads—often 20,000 kg or more, as shown in the image—are strategically placed to mimic real battery system weights. The container is then lifted from designated lifting points to evaluate:

• Structural stability
• Frame integrity
• Weld joint quality
• Lifting lug alignment and strength

These tests confirm the container complies with international safety standards, and they are essential for offshore or large-scale utility applications where safe handling is non-negotiable.

TLS Energy’s Lifting Test Standards
TLS Energy performs lifting tests in strict accordance with international container safety codes and engineering best practices. Each BESS container undergoes:

• Visual inspection before and after lifting
• Deflection and stress analysis during the test
• Load distribution assessment
• Documented quality control checks

Our in-house testing procedures also simulate extreme handling scenarios to ensure that the container maintains its integrity even under harsh conditions.

Why It Matters
Inadequate lifting strength can lead to catastrophic failures during transport or crane operations. By conducting thorough lifting tests, TLS Energy provides peace of mind to clients, ensuring:

• Safe transportation from factory to installation site
• Long service life of the container structure
• Compliance with insurance and regulatory requirements
• Confidence for offshore and high-value grid-connected projects

Global Trust in TLS Energy
With more than 10 years of experience in manufacturing and designing BESS containers, TLS Energy delivers OEM and ODM container solutions for global energy storage companies. Our clients rely on us not only for technical performance but also for exceptional safety standards.

By prioritizing safety through lifting tests and structural evaluations, TLS Energy continues to lead the way in delivering reliable, durable, and tested BESS container enclosures to markets worldwide.

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