In a recent ISGF, SunSpec, and DER Security webinar, industry leaders and policymakers outlined India’s path to safely deploying 10 million rooftop solar systems under the PM Surya Ghar program. Speakers highlighted the adoption of IS-18968:2025, aligned with IEEE 1547-2018, which makes smart inverters and secure communications mandatory for all new DER connections. The session emphasized SunSpec Modbus as the plug-and-play protocol for interoperability, enabling faster compliance testing, improved grid visibility, and integration with India’s digital energy stack. Critical discussions focused on cybersecurity risks, particularly in monitoring dongles, and the importance of secure Modbus with mutual TLS to prevent large-scale vulnerabilities. Panelists from CEA, MNRE, Grid India, SunSpec, and DER Security agreed that interoperability, resiliency, and cybersecurity must be foundational to scaling rooftop solar, unlocking new market value streams while ensuring grid reliability.
Watch the webinar recording below:
