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Battery energy storage: 6 security questions operators should be asking
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Fusion42 · 1 October 2026 · Fusion42 review
Battery Energy Storage Systems (BESS) are increasingly vulnerable to cyberattacks due to their software-controlled nature and integration with grid systems. Investments in security measures and certification like IEC 62443 can significantly reduce the high probability and financial risks of coordinated cyberattacks on grid battery storage in the UK.
This Wire brief sits within Fusion42's coverage of Climate Tech.
◆ ◆ The Wire takeaway
You must upgrade your battery storage security now or face a near-certain risk of a costly grid attack. Regulators are moving toward mandatory certifications and readiness drills that cut this risk substantially, opening an immediate path to safer market access.
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1 source · 29 Sep 2026
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