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Battery Energy Storage Systems (BESS)

Safeguarding the Future of Clean Energy with Proven Early Detection, Monitoring & Suppression

As the world accelerates its transition to renewable energy, Battery Energy Storage Systems (BESS) have become essential to grid stability, peak management, and energy efficiency. However, lithium-ion energy storage introduces unique fire risks, including overheating, instability, off-gassing, and potential thermal runaway. Protecting these systems requires early detection, intelligent control, and coordinated response.

KiddeFenwal delivers an integrated, multi-layered approach engineered specifically for BESS environments. Through advanced anomaly detection, suppression, and remote monitoring, our technologies help identify early warning signs and support mitigation strategies that protect the systems powering a sustainable future.

Energy Storage System

Built for the Unique Fire Risks of Energy Storage Systems

Lithium-ion batteries can experience internal chemical instability when exposed to thermal, mechanical, electrical, or environmental stress. KiddeFenwal solutions are engineered to detect these conditions long before traditional fire systems can respond.

  • Early Detection & Monitoring
    REL-iON™ sensors are designed to identify Stage 1 battery abuse conditions — before visible smoke or heat appears, providing critical time for intervention. When a battery enters Stage 2 off-gassing, REL-iON™ detects this chemical signature quickly, enabling operators to initiate mitigation steps that may help prevent or delay escalation into thermal runaway.
  • Integrated System Intelligence
    When paired with KiddeFenwal control panels, REL-iON™ sensors provide continuous, intelligent monitoring, delivering fast, coordinated signaling across detection, alarm, and suppression systems.
  • Clean, Non-Damaging Suppression
    Clean-agent and inert-gas suppression systems provide effective coverage for electrical equipment, system control components, and BESS support infrastructure without leaving residue or damaging electronics.
  • Remote Visibility Across Distributed Assets
    The IntelliSite™ platform transforms fire protection systems into a connected network, offering real-time diagnostics, event-based alerts, and system readiness insights.

Applications

KiddeFenwal solutions support early detection, suppression, and system coordination across a wide range of BESS environments.

  • Battery & Enclosure-Level Protection
    • Lithium-ion cells, modules, and racks
    • Containerized or modular BESS enclosures
    • Environmental and HVAC pathways
  • Control & Power Conversion Equipment
    • Fire detection inside electrical control cabinets
    • PCS, inverter, and balance-of-system components
    • DC bus and cable management zones
  • Critical Infrastructure & Remote Sites
    • Distributed energy storage networks
    • Utility-scale microgrids
    • Renewable energy support systems
Battery Storage

Featured Solutions

REL-iON™ Battery Abuse & Off-Gas Sensors
REL-iON™ Battery Abuse & Off-Gas Sensors

Multi-stage sensing technology that detects both early battery abuse (Stage 1) and electrolyte off-gassing (Stage 2), providing valuable early-warning time before conditions escalate.

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Conventional & Intelligent Control Systems (AEGIS™-PHX)
Conventional & Intelligent Control Systems (AEGIS™-PHX)

Centralized system control for coordinated detection, alarms, and suppression activation—ensuring rapid, reliable response for BESS installations.

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Clean-Agent Fire Suppression Systems
Clean-Agent Fire Suppression Systems

ECS™, ECS™-500, ADS™, Fluoro-K™, and HFC-227ea deliver residue-free fire suppression ideal for electrical equipment and balance-of-system components..

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Inert Gas Fire Suppression Systems (NATURA™)
Inert Gas Fire Suppression Systems (NATURA™)

Nitrogen-, argon-, or blended-gas suppression solutions designed for larger hazard volumes and environmentally responsible protection.

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Aspirating Smoke Detection (ASD)
Aspirating Smoke Detection (ASD)

Provides ultra-early smoke detection and continuous air sampling for high-sensitivity BESS environments.

ModuLaser® VESDA®

IntelliSite™ Remote Monitoring
IntelliSite™ Remote Monitoring

Cloud-based remote monitoring with real-time alerts, diagnostics, and system visibility for distributed energy storage sites.

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Why Choose KiddeFenwal for BESS Protection

BESS Protection
  • Early detection you can trust
    REL-iON™ sensors deliver unmatched sensitivity to abuse and off-gassing events.
  • Integrated intelligence across detection, control & suppression
    Systems communicate seamlessly for fast, coordinated response.
  • Clean, compliant suppression option
    Environmentally responsible agents designed for sensitive electrical environments.
  • Global expertise
    Proven performance in energy storage applications worldwide.
  • Built for system integration across complex BESS architectures
    KiddeFenwal solutions are engineered to integrate across multi-zone, multi-sensor, and multi-enclosure energy storage systems—ensuring consistent communication, streamlined response, and simplified system management.

Together, these solutions form a unified safety ecosystem engineered to meet the demands of modern energy infrastructure.

Industry Resources

Technical Documents

Partner with a Global Leader in Fire Protection

Protecting renewable energy means protecting the systems that make it possible. KiddeFenwal delivers proven, certified detection and suppresiosn solutions that may delay or prevent thermal runaway and safeguard BESS facilities.

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Frequently asked questions

How is a BESS container protected against fire?

Typically by combining early off-gas detection (REL-iON™) to de-energize and ventilate, with Fluoro-K™ clean agent or inert gas suppression for the incipient stage; designs follow NFPA 855 and the UL 9540A test results for the specific battery.

Why detect off-gas instead of just smoke?

Lithium-ion cells vent gas minutes before smoke or flame. Detecting at that stage allows charge/discharge to be stopped and thermal runaway propagation to be prevented – something smoke detection cannot do in time.

Need advice or a quote for this product?

KiddeFenwal Vietnam brings the full Kidde Fire Systems, Fenwal Controls and Kidde Fire Protection portfolio – fire detection, suppression and safety controls – to critical industries in Vietnam.

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