Why Physical Security Design Is Becoming Critical to Protecting the Energy Grid

Energy grids worldwide are among the most important assets for ensuring that personal and professional activities go unhindered. Any interruption could have serious consequences for anyone’s ability to perform mission-critical tasks.

Energy resilience is a notable concern in many households and businesses, including the costs and reliability of supply. However, without adequate physical security to protect the infrastructure that delivers energy to their respective properties, those concerns could become a reality.

The rising economic instability and political unrest worldwide have led many individuals and groups to target vital infrastructure with physical attacks to advance their causes. Energy grids have become prime targets, making physical security more crucial than ever.

Importance of physical security in the energy sector

The integrity of energy infrastructure has far-reaching impacts on the economy, society, politics and overall global stability. Protecting the energy grid is among the top priorities of industry leaders worldwide, with many believing that operational assets, such as electric substations, are soft targets. 

As so many locations and properties depend on a reliable supply, interruptions can lead to significant economic losses for businesses and cause social and political unrest. For sites that also rely on onsite generation, understanding how much electricity a solar panel produces can highlight just how exposed they remain if grid infrastructure is compromised, reinforcing the need for robust physical security.

A long-term, dependable flow of energy and the infrastructure’s ability to quickly recover in the event of an incident are imperative components of operational success. However, physical threats against infrastructure are now rising in numbers and sophistication, forcing industry leaders to reevaluate their security strategies.

Emerging physical threats against energy grids

Because of the energy sector’s socio-economic and political impact, many individuals and groups may seek to cause damage to infrastructure for personal or collective gain. Successful attacks can cause significant disruption and be very costly.

The effects of these incursions explain why physical threats are becoming more common and more organized. The Christmas Day substation attack near Tacoma, WA, caused over $3 million in damage, leaving nearly 50,000 residents without power, just an example of many such sophisticated attacks.

Malicious intent isn’t the only physical security concern for energy grids. In 2019, an unprecedented heat wave in the UK caused railway power lines to expand and sag, resulting in significant transport disruption. As demonstrated with these examples, physical security has become a greater concern for energy providers. 

A round-up of emerging threats against grids includes:

• Physical assaults against infrastructure, such as substations, transmission lines and control centers
• Vandalism or theft of operational equipment
• Sabotage caused by insiders
• Extreme weather and natural disasters that compromise the energy supply
• Drone incursions damaging or obstructing assets

Building an effective strategy to mitigate energy security risks and threats

Managing and mitigating these risks and threats can be challenging for energy providers. Practitioners will need to layer multiple physical security policies to build an effective strategy that protects energy grids against a range of potential threats.

A unified approach can provide the flexibility, adaptability and scalability needed to combat physical threats in a rapidly evolving energy security landscape. The strategy should consider visibility, early detection and response capabilities to help both mitigate and act on prospective incidents.

Layers of physical security for an energy grid can include:

• Access control: The first line of physical security against unauthorized access to sensitive areas. Advanced access control systems usually include biometric scanners or other keyless access methods to help ensure that only authorized personnel can access energy infrastructure.
• Video security cameras and PPE detection: Video cameras are an integral part of a security strategy, helping to identify suspicious activity and providing visual confirmation of incidents. When combined with analytics such as PPE detection, they can also verify that contractors and staff working on-site are wearing the correct safety gear in high‑risk zones, supporting both compliance and worker protection.
• Perimeter detection: Internet of Things (IoT) sensors can help detect security threats early. Motion, sound and air quality sensors can assist in identifying trespassers, aggression and potentially extreme weather events.
• Staff training: Competent staff can help enhance the layers of physical security hardware for the energy sector. Training teams to identify and report security threats and risks can significantly improve overall site safety.
• Incident response: An effective, swift response to incidents can help minimize disruptions to the energy supply. Planning for security events and how to take action can help reduce downtime and minimize costs.
• Data analytics: Data processing platforms assisted by artificial intelligence (AI) can continuously analyze real-time data, providing deeper insights into security. The resulting information can help planners quickly identify gaps and take corrective action, maintaining pace with evolving threats to the energy industry.

The role of technology in protecting the energy grid

As outlined in the layered security strategy, technology can play a leading role in securing the energy grid. Advanced devices with enhanced optics, sensors, functionality and response capabilities, unified by a single, remotely managed platform, can help meet the growing, evolving demands of physical security for energy infrastructure.

Let’s not forget that the data insights analyzed by AI-assisted algorithms can help security teams plan and adapt security infrastructure to industry-specific risks and modern threats. Overall, these devices and their capabilities are frontline layers in protecting energy grids from damage and disruption.

Physical security for energy grids is becoming increasingly important, where layered security strategies backed by advanced technology help teams effectively manage the ever-changing security climate.