Global Energy Storage Manufacturing Quality Report 2026

Key risks and defect trends from our latest inspection data

Intertek CEA has conducted quality audits at more than ninety Energy Storage System (ESS) factories worldwide. This report summarizes our key findings from our 2025 inspections.

Our latest data shows that more than 1 in 8 inspected ESS units had safety-critical issues relating to the battery management system, thermal management, or water ingress.

The report outlines the causes, consequences, and resolutions for these and other ESS quality risks.

Download the full report by completing the form to the right.

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