BESS – Energy storage

BESS – Energy storage

Battery Energy Storage Systems (BESS) play a crucial role in the modern energy landscape, balancing renewable supply with on-demand power. But these high-density electrical environments present unique safety and containment challenges where the risks of fire, gas release and thermal runaway must be tightly controlled.

Designed for energy storage demands

CSD’s sealing systems are trusted across the energy sector to deliver certified protection in BESS installations. Our products provide long-term defence against fire, water, gas and smoke ingress, helping operators safeguard assets, maintain containment integrity, and meet the latest fire safety and environmental standards.
Our Case Studies

Up to 4 hours fire resistance (EI-rated) – tested and certified

Watertight and gastight sealing for critical containment areas

Resistant to heat, vibration and environmental exposure

Maintenance-free performance with 50+ year service life

Compatible with DNO, ATEX and WIMES requirements

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Applications in BESS facilities

Some of the elements of your BESS facility that CSD Sealing Systems can protect with our world leading solutions:

  • Cable and pipe penetrations in battery enclosures and containers
  • Fire-rated sealing for switchgear and inverter rooms
  • Duct and conduit entries for underground power connections
  • Compartmentation between battery banks and control systems
  • Water ingress protection for external and below-grade installations
  • Retrofitted sealing during system upgrades or safety improvements
Aerial view of storage containers and electrical equipment

Let’s protect your energy storage assets together

Get in touch with our technical team to discuss compliant, future-ready sealing strategies for your battery storage projects.

Aerial shot of electrical substation
“CSD Technical Services delivered the water, and gastight sealing works to a high standard across our control room and DNO substation. Their support contributed effectively to our wider climate action plan, including the installation of a new solar farm and battery storage system. We were very satisfied with the work and will be considering CSD for future projects.”

CSD client

Morrison Data Services