BEE Sets February 28 Deadline for Solar Inverter Registration Continuation Under Mandatory Labelling
The Bureau of Energy Efficiency has notified solar inverter manufacturers that continuation of BEE registration under the mandatory labelling regime from January 1, 2026, will require fresh submissions by February 28, 2026, failing which existing models will be deactivated.
January 13, 2026. By Mrinmoy Dey
BEE has directed manufacturers intending to continue their already registered inverter models to upload the previous approval letter along with a sample label reflecting the revised validity period on the BEE portal by February 28, 2026. A duly filled proforma indicating willingness to continue registration must also be submitted.
As per the advisory, existing registered models will remain active only until February 28, 2026. The online portal for submitting continuation applications will open on January 6, 2026, at 11:30 hrs, and no applications will be accepted beyond the deadline. Models for which continuation requests are not received within the stipulated timeline will be automatically deactivated, BEE said.
In November 2025, the Ministry of Power specified minimum overall efficiency standards for grid-connected solar inverters up to 100 kW capacity being manufactured in or imported to India. The norms, issued in consultation with the BEE, will remain valid from January 1, 2026 to December 31, 2027.
Under the new framework, all single-phase (230 V AC, 50 Hz) and three-phase (up to 415 V AC, 50 Hz) non-storage, grid-connected solar inverters must meet prescribed minimum overall efficiency thresholds based on their rated output power. The standards draw upon IS 17980:2022 and IEC 62891:2020 test protocols.
The minimum overall efficiency requirements are set at 92 percent for inverters below 1 kW, 93 percent for inverters between 1 kW-3 kW, 95 percent for those between 3 kW-5 kW, 96 percent for the 5 kW-10 kW range, 97 percent for inverters between 10 kW-20 kW, and 98 percent for inverters above 20 kW. Further, there shall be no negative tolerance in the minimum overall efficiency requirement criteria for obtaining the BEE endorsement label.
Every tested product must meet or exceed the mandated thresholds, including manufacturing variations. The government has also made adherence to BIS compliance and testing under the latest IS 17980:2022 standard mandatory for participation in the BEE labelling programme.
The Power Ministry notification formalised the requirement for manufacturers to display an endorsement label reflecting inverter efficiency categories, based on static MPPT efficiency and steady-state conversion efficiency. Accredited laboratories under NABL, ILAC, APLAC or NISE will be authorised to issue test reports.
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