Supervisory Control and Data Acquisition (SCADA) systems are the backbone of modern utility operations, ensuring the electricity grid operates efficiently and reliably. These systems depend heavily on robust communication networks to connect central control centers with field devices. However, relying solely on traditional cellular networks for this critical communication presents significant challenges to maintaining maximum grid uptime.
The Challenge of Cellular Reliability for SCADA Systems
While cellular technology offers widespread coverage, it was primarily designed for mobile consumer applications, not the stringent reliability demands of utility SCADA. Cellular networks, both public and private, prioritize mobility and coverage over absolute availability. This inherent limitation can lead to vulnerabilities in SCADA communication links, potentially impacting grid stability and responsiveness. For utilities aiming for near-perfect grid availability, the typical 99.9% uptime of cellular networks may not be sufficient.
eSIM Technology: A Leap Towards Resilient SCADA Networks
Emerging eSIM (embedded SIM) technology offers a promising solution to bolster SCADA network resiliency. By embedding SIM capabilities directly into devices, eSIM facilitates seamless switching between multiple cellular networks without the need for physical SIM card changes. This multi-network access is a game-changer for utility SCADA. Imagine a scenario where a primary cellular network experiences an outage; with eSIM, the SCADA system can automatically failover to a secondary or even tertiary network, maintaining critical communication links. This redundancy significantly enhances overall network availability, potentially improving it by an order of magnitude by mitigating the impact of individual network outages.
This innovative approach is gaining traction within the utility sector. John Nachilly, Manager of Operational Network Strategy & Architecture at Eversource Energy, a leading figure in utility network modernization, is set to discuss the transformative potential of multi-carrier eSIM technology for SCADA at DTECH (formerly DISTRIBUTECH) in Dallas, Texas, from March 24-27, 2025.
John Nachilly: A Visionary in Utility Network Strategy
John Nachilly brings over 40 years of invaluable experience to the forefront of utility technology. His expertise spans telecommunications, enterprise network design, cloud services, and smart grid initiatives. At Eversource Energy, John is instrumental in shaping the company’s network strategy, particularly in critical areas like Field Area Networks and Advanced Metering Infrastructure. His focus on developing secure and resilient communication technologies is paramount to achieving ambitious grid modernization goals. His upcoming session, “Leveraging eSIM technology to improve SCADA resiliency” at DTECH, offers a vital opportunity for industry professionals to gain insights into practical strategies for enhancing SCADA reliability using eSIM.
Conclusion: Embracing eSIM for Enhanced SCADA Reliability
For utilities striving to optimize grid operations and minimize downtime, enhancing SCADA communication reliability is paramount. eSIM technology, championed by experts like John Nachilly, presents a significant step forward. By providing inherent redundancy and multi-network access, eSIM empowers utilities to build more robust and resilient SCADA systems, ensuring the continuous and reliable operation of the smart grid. Attending John Nachilly’s session at DTECH 2025 is highly recommended for anyone seeking to understand and implement cutting-edge solutions for SCADA network resilience.
