MNRE Mandates Inverter-Level Data Storage Within India for PM Surya Ghar Rooftop Solar Systems
The Ministry of New and Renewable Energy has mandated that inverter-level data from rooftop solar systems installed under PM Surya Ghar Yojana be stored on servers or cloud platforms located within India. MNRE also mandated daily generation reporting through a standardised API.
August 21, 2026. By Mrinmoy Dey
All inverter OEMs and manufacturers must submit a compliance confirmation to REC, with a copy to MNRE, within 30 days, confirming that inverter-level data is stored on servers or cloud platforms within India. Failure to comply will bar them from installing systems under PM Surya Ghar.
According to MNRE, rooftop solar generation data is important for consumers to assess system performance, for distribution companies (DISCOMs) to monitor overall rooftop solar generation in their areas, and for the ministry to track the performance of the PM Surya Ghar programme. However, large-scale communication of data from rooftop solar plants also creates integration and cybersecurity challenges. MNRE has noted that transmission of data to servers located outside India could expose generation data and create risks related to unauthorised control of devices.
Under the new instructions, inverter OEMs and manufacturers must ensure that applications, associated monitoring and control servers, and real-time data from rooftop solar systems installed under PM Surya Ghar are stored in an encrypted, secure and protected environment and reside exclusively within India. This requirement also covers data and information hosted on cloud platforms.
MNRE has also directed inverter OEMs to include data loggers within the scope of their inverter warranty. The requirement builds on earlier MNRE provisions. The PM Surya Ghar Central Financial Assistance (CFA) guidelines issued in June 2024 require inverters to have an inbuilt facility for communicating system-related data through a SIM or dongle and provide for rooftop solar generation data to be supplied to the National Portal. An MNRE memorandum issued in July 2025 mandated the use of Machine-to-Machine (M2M) SIM communication protocols for inverter communication devices, dongles and dataloggers. Guidelines issued in December 2025 subsequently prescribed a vendor-neutral, secure and interoperable communication and security architecture for transmitting generation and other data parameters to the Centralised IoT SCADA Platform.
MNRE has further mandated all inverter OEMs to provide daily generation data to the National Portal for installations covered under PM Surya Ghar. The data will comprise cumulative energy generation for each day and will be mapped against the inverter serial number or another unique identifier specified by the ministry.
The data is to be transmitted through an API. MNRE has specified that the API will be uniform across inverter manufacturers and limited to the minimum required parameters, including daily generation data. This arrangement will remain in place until central servers are developed at the state or DISCOM level and states and DISCOMs begin capturing rooftop solar generation data from consumers and supplying it to the National Portal.
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