SOLUTIONS BRIEF

Zero Trust OT Cybersecurity Protection for Battery Energy Storage Systems

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In May 2025, the revised NERC CIP framework requires that lower capacity BESS systems rated at 20 MVa or greater with a connection at 60 kV or higher be subject to NERC CIP. These newly regulated assets must demonstrate compliance by May 2026 or face fines of up to $1M per day for non-compliance. BlastWave’s approach to delivering NERC CIP security solutions for the BESS market focuses on operational simplicity for critical infrastructure at scale.

BlastWave protects Battery Energy Storage Systems (BESS) with a unique overlay Zero Trust Protection architecture. It supports key foundational security requirements with less operational complexity and lower TCO than traditional OT security offerings. BlastWave’s solution addresses key NERC CIP requirements faster and more economically than conventional “bolt-on” OT security solutions.

Secure Remote Access

Passwordless remote access is phishing-resistant and removes credential theft as a risk factor.

Network Segmentation

Software-defined segmentation allows BESS networks to be segmented by risk factors and ensures least privilege access to each segment.

Network Cloaking

Create a secure overlay to protect legacy systems from vulnerabilities, shield them between patch windows, and limit downtime by creating segmentation for BESS systems.

BlastShield solutions require only 10% of the installation time, need 50% less maintenance, and cost 25% of traditional OT security solutions. BlastWave’s solutions are optimized for OT and built with Secure-By-Design principles from Day 1. These comprehensive protection solutions deliver:

Enhanced Operational Uptime

Reduces downtime associated with patching vulnerable operational systems with network cloaking

Enhanced Resilience

BESS networks and systems are undiscoverable to hackers, preventing targeted cyberattacks and cloaking Zero Day vulnerabilities.

Enabling secure BESS operations

With geographically dispersed assets and greater reliance on remote maintenance, BlastWave prevents unauthorized access or manipulation of BESS systems.

Lowered Operational Costs

Existing staff can install and maintain systems without adding costly OT cybersecurity hires.

Figure 1: BlastWave in Battery Energy Storage Networks

Banner photo by Sig. Chiocciola

Increase Uptime

by eliminating cyber security risks before they can gain a foothold in your network.

Improve Safety

by ensuring that all connectivity to the BESS systems is secure and encrypted, preventing the modification of sensor data in flight.

Lower Costs

by not requiring expensive IT personnel or platforms and simplifying the installation, operation, and management of OT cybersecurity solutions

BlastShield™: Zero Trust OT Protection for Battery Energy Storage Systems

BlastWave in Battery Energy Storage Networks

Supports key NERC CIP security requirements with minimal impact or downtime to existing operations.

Extending patch cycles while mitigating security controls increases uptime. Securing and encrypting all BESS system connectivity improves resilience, preventing sensor data modification in transit.

Lower Total cost of ownership with decreased capital expense, lower maintenance labor due to decreased complexity of maintaining multiple OT security integrations, and reduced requirements for specialized OT security expertise to own and operate.

BlastWave Use Cases for Battery Energy Storage Systems (BESS):

Securing Battery Management Systems (BMS)

  • Protect BMS from unauthorized access and manipulation.
  • Ensure secure remote monitoring and control of battery health
    and performance.

Protecting Inverter Control Systems

  • Secure inverter control systems from cyberattacks
  • Ensure secure communication between inverters and grid
    control systems.

Securing Grid Integration Systems

  • Protect communication and control systems integrating BESS with the power grid.
  • Mitigate the risk of unauthorized manipulation to grid frequency and voltage.

Securing Remote Monitoring and Control

  • Enable secure remote access for maintenance personnel and operators.
  • Limit access to necessary systems and data, enforcing
    least privilege.

Protecting Data Acquisition Systems

  • Safeguard sensor data (e.g., temperature, voltage, current).
  • Ensure secure data transmission to control centers and
    analytics platforms.

Protection Against AI-Powered Reconnaissance

  • Hide critical network assets from AI reconnaissance tools

Phishing Protection

  • Use passwordless MFA to prevent phishing attacks on employees and contractors

Segmentation and Microsegmentation

  • Limit cyberattack blast radius through network segmentation.

Zero Trust Architecture

  • Implement Zero Trust to protect the entire network with minimal impact on existing operations.

Protecting Legacy Systems

  • Provides mitigating controls for end-of-life systems that can no longer be patched.

Securing DER Communication

  • Protect communication between BESS and other distributed energy resources (DERs).

Protecting Frequency Regulation Market Participants

  • Protect systems that control BESS and bid devices into frequency regulation markets.

BlastShield Deployment Benefits

  • Helps energy networks achieve regulatory compliance.
  • Simple migration – no changes to existing IT/OT architecture.
  • Faster installation and administration vs. traditional solutions
  • Consumer-grade UX: simple biometric authentication, access only to required devices.

BlastShield’s Unique Features

  • Reconnaissance-proof Network Cloaking
  • Phishing-Resistant Secure Remote Access
  • Software Defined Segmentation

These features help BESS systems comply with NERC CIP requirements effectively.

About BlastWave

BlastWave securely connects Industrial Control Systems, Operational Technology, and Critical Infrastructure networks with Zero Trust Protection and delivers industrial-grade cybersecurity with consumer-grade ease-of-use.

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Understand how BlastShield™ offers a simple, effective, and cost-efficient way to protect Battery Energy Storage System.

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What is BlastShield for Battery Energy Storage Systems?

BlastShield is a Zero Trust OT cybersecurity solution for Battery Energy Storage Systems, or BESS. It helps protect BESS networks, remote access paths, control systems, and legacy OT devices using network cloaking, passwordless MFA, and software-defined segmentation.

Why do Battery Energy Storage Systems need OT cybersecurity?

Battery Energy Storage Systems need OT cybersecurity because they are increasingly connected to grids, remote operators, DER environments, control centers, and market systems. Without strong protection, attackers may be able to discover, access, or manipulate critical BESS infrastructure.

How does BlastWave help BESS operators with NERC CIP requirements?

BlastWave helps BESS operators support NERC CIP security requirements by enabling secure remote access, segmentation, access control, network cloaking, auditability, and protection for critical OT systems with minimal operational disruption.

What BESS systems can BlastWave help protect?

BlastWave can help protect Battery Management Systems, inverter control systems, grid integration systems, remote monitoring and control systems, data acquisition systems, DER communication systems, and legacy OT assets.

How does network cloaking protect BESS environments?

Network cloaking hides critical BESS assets from unauthorized users and reconnaissance tools. This helps prevent attackers from discovering battery systems, control devices, and vulnerable legacy assets before they can attempt an attack.

How does BlastWave secure remote access for BESS operations?

BlastWave provides phishing-resistant, passwordless remote access for operators, maintenance teams, vendors, and contractors. Access can be limited to only the systems and data each user needs, helping enforce least privilege.

How does segmentation reduce risk in BESS networks?

Segmentation and microsegmentation divide BESS networks into controlled zones. This limits lateral movement, reduces the blast radius of an attack, and helps ensure that users and systems can only communicate with approved assets.

Can BlastWave protect legacy BESS systems that cannot be patched?

Yes. BlastWave can provide network-layer mitigating controls for legacy or end-of-life systems that cannot be patched or easily upgraded. This helps reduce exposure without requiring major changes to existing IT or OT architecture.

How does BlastWave protect BESS sensor data?

BlastWave helps secure and encrypt connectivity to BESS systems, reducing the risk of unauthorized access or modification of sensor data such as temperature, voltage, and current readings.

What are the main benefits of BlastShield for BESS operators?

The main benefits include increased uptime, improved safety, lower operational costs, reduced cyber risk, simplified deployment, secure remote maintenance, stronger compliance support, and protection against phishing, reconnaissance, and lateral movement.

How To Secure Battery Energy Storage Systems with BlastShield

Step 1: Identify critical BESS assets

Begin by identifying the systems that support battery operations, safety, and grid integration. These may include Battery Management Systems, inverter controls, grid integration systems, DER communication systems, remote monitoring platforms, and data acquisition systems.

Step 2: Cloak critical BESS systems

Use network cloaking to make sensitive BESS assets undiscoverable to unauthorized users and reconnaissance tools. This reduces the ability of attackers to find and target critical systems.

Step 3: Secure remote access with passwordless MFA

Replace password-based access with phishing-resistant, passwordless MFA. This helps protect employees, operators, vendors, and contractors from credential theft and unauthorized access.

Step 4: Segment BESS networks by risk

Use software-defined segmentation to separate BESS systems based on function, risk, and operational need. Limit access between zones so users and systems can only reach approved assets.

Step 5: Apply least-privilege access

Give each user access only to the devices, systems, and data required for their role. Restrict vendor and maintenance access to specific systems and operational windows whenever possible.

Step 6: Protect BMS and inverter control systems

Secure Battery Management Systems and inverter controls from unauthorized access or manipulation. Ensure communications between BESS assets and grid control systems are protected.

Step 7: Safeguard sensor and operational data

Protect data acquisition systems and secure the transmission of sensor data such as temperature, voltage, and current. This helps prevent manipulation of data in transit.

Step 8: Protect DER and frequency regulation communications

Secure communications between BESS assets, distributed energy resources, and systems that participate in frequency regulation markets. Prevent unauthorized manipulation of grid-related control functions.

Step 9: Add compensating controls for legacy systems

Use network-layer protections around end-of-life or hard-to-patch systems. This helps reduce risk while preserving uptime and minimizing disruption to existing operations.

Step 10: Support compliance and operational resilience

Use Zero Trust architecture, network cloaking, segmentation, and secure remote access to support NERC CIP alignment, reduce cyberattack blast radius, and improve resilience across BESS operations.