Image: Delta Electronics, pv magazine
Delta Electronics has introduced, designed, developed and manufactured in India a 1.1 MW modular central inverter for large-scale photovoltaic installations. The unit combines efficiency of up to 99.1% with modular architecture, advanced security systems and remote communication capabilities.
Up to five inverters can be connected in parallel for a total power of 5.5 MW, allowing plant operators to scale capacity as needed. The inverter operates at a system voltage of 1,500 V DC and delivers a maximum AC power of 1,350 kVA at 23 C, or 1,120 kVA at 51 C, ensuring stable performance in high-temperature environments.
“The inverter is designed, developed and manufactured in India with a domestic value addition of more than 50%. While we will initially sell it in the Indian market, we plan to qualify it for export to global markets,” said Rajesh Kaushal, vice president and BG head of power and energy solutions at Delta Electronics India.
The device has one Maximum Power Point Tracker (MPPT) with five DC input groups, expandable to seven. It can handle a maximum PV input current of 1,445 A and can withstand short-circuit currents up to 3,541 A.
Kaushal said Delta plans to expand annual inverter manufacturing capacity in India from 1 GW to 5 GW over the next two to three years, citing strong growth in the country’s renewable energy sector.
At the REI 2025 trade show, Delta also launched a 5.5 MWh battery energy storage system equipped with an intelligent energy management platform. The company is currently producing the units in collaboration with its headquarters in Taiwan and is moving towards full local production as part of its ongoing localization program.
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