MNRE Issues Guidelines for Inverter Communication Devices, RMS under PM Surya Ghar Scheme

The Ministry of New and Renewable Energy (MNRE) has finalised guidelines for inverter communication devices, dongles, dataloggers, and Remote Monitoring Systems (RMS) to enable secure, real-time monitoring and integration of rooftop solar systems with the centralised IoT SCADA platform under the PM Surya Ghar: Muft Bijli Yojana.

The move follows Office Memoranda issued on 21 July 2025, which set compliance requirements for inverters and communication devices and outlined the plan to develop vendor-neutral, open-protocol guidelines for rooftop solar monitoring. Draft guidelines were circulated for stakeholder feedback, and inputs from manufacturers, developers, and system integrators have now been incorporated into the final framework.

The guidelines establish standardised communication protocols for RMS and related devices in grid-connected rooftop solar installations, using uniform message structures and data models. They are designed to ensure reliable, scalable integration of field-deployed solar assets with the centralised platform.

They also emphasise data security, integrity, and confidentiality through encryption, certificate-based authentication, controlled access, and transaction-level safeguards. The framework supports real-time and near-real-time monitoring and diagnostics, helping improve operational efficiency, system reliability, and grid stability.

To ensure data sovereignty and regulatory oversight, all data exchanges are mandated through government-authorised infrastructure hosted in India. The framework is also future-ready, capable of supporting additional devices, advanced analytics, control functions, and evolving regulatory or grid requirements without major architectural changes.

According to MNRE, the guidelines serve as a comprehensive reference for developers and system integrators, providing standardised, secure, and interoperable data exchange across the rooftop solar ecosystem.