Odisha Amends Net Metering Rules to Allow Hybrid Inverters in Rooftop Solar Projects
The Odisha Electricity Regulatory Commission has updated its net-metering framework to permit hybrid inverters and M2M-enabled data loggers for rooftop solar systems, aligning state rules with the Ministry of New and Renewable Energy directives.
December 01, 2025. By Mrinmoy Dey
The amendment responds to stakeholder submissions and incorporates recent directives from the Ministry of New and Renewable Energy (MNRE). The Commission noted that hybrid inverters, now permitted by MNRE’s notification dated September 20, 2024, were not covered under the existing 2016 order, necessitating an update.
A new clause defines and formally permits the use of hybrid inverters capable of managing both PV generation and energy storage systems, supporting grid-interactive as well as stand-alone operation. “The consumer shall have the option to install either Grid tied inverters or hybrid inverters, the line diagram of which are provided in Annexure-I & Annexure-II respectively,” noted the OERC order. This addition integrates storage-ready architectures into Odisha’s net-metering ecosystem for the first time.
Further, in line with MNRE’s July 2025 mandate, OERC has allowed the use of SIM-based data loggers and other M2M communication devices as an alternative to dedicated generation meters for real-time performance monitoring and data transmission.
“Inverter communication devices/dongles/data loggers having Machine-to-Machine (M2M) SIM communication protocol can also be relied upon for real-time measurement and transmission of generation data in lieu of generation meter,” it said.
The OERC order has also clarified that all expenses related to meters, connectivity, and associated infrastructure must be borne by eligible consumers, with procurement allowed by either the discom or the consumer. Discoms, however, must test and install meters as per the Central Electricity Supply Code, it said.
The Commission has updated technical compliance requirements, mandating sine-wave inverters with harmonic limits aligned to IEEE 519. “The inverter should also comply to the mandatory standards stated by MNRE: IS 16221 (Part 2).2015/IEC 62109-2.2011 Safety of Power Converters for use in Photovoltaic Power Systems Part 2 (Particular Requirements for Inverters) and IS 16169.2019/IEC 62116.2014 Test Procedure of Islanding Prevention Measures for Utility Interconnected Photovoltaic Inverters,” the Order noted.
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