Technical FAQs 4

What are the new minimum efficiency standards for grid-connected solar inverters?

The Ministry of Power has introduced new minimum efficiency standards for grid-connected solar inverters up to 100 kW, applicable to all units manufactured or imported in India from January 2026 to December 2027. Manufacturers must display an endorsement label based on the overall efficiency matrix on the grid-connected solar inverter.

What are the minimum efficiency standards for inverters?

The standards define minimum overall efficiency as follows: No negative tolerance is allowed. Every inverter tested must meet these minimum values, even after considering manufacturing variations. Each inverter must have a BEE label that shows how well it saves energy. This label makes it easy to spot inverters that use less power.

Do solar inverters meet a minimum efficiency threshold?

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.

What are inverter standards?

Standards provide specifications for evaluating the durability and reliability of inverters, addressing factors such as thermal performance, mechanical resilience, and energy efficiency.

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Solar inverter efficiency standards

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saas-fee-azurit

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