Octillion Powers Pune's 3 GWh Battery Factory With 545 MWh Solar Energy

United States (US), California-based -based Octillion has completed a facility-wide conversion to solar energy at one of its three battery system manufacturing factories in India. The Pune facility, inaugurated in June 2023, began its solar conversion in June 2024 and achieved full operational status by July 2025—just 13 months later.

Octillion, in a press release, said the approximately 8,200-square-metre facility—roughly the size of two football pitches—generates 3 GWh of total annual battery capacity for India's electric vehicle market.

Its new rooftop solar installation will provide about 545 MWh of dedicated clean energy annually, fully covering the facility's power requirements. The upgrade further aligns with the company’s goal of advancing the full life cycle of its electric vehicle (EV) battery systems.

This facility is the first among Octillion's factories to achieve full conversion to 100% solar energy and supports the company’s objective of making all its India-based facilities carbon neutral through solar power generation by 2027.

Previous Renewable Energy-Powered EV Plant 

Octillion’s latest factory-wide switch to solar sits alongside a growing wave of industrial captive-solar projects in Pune and Maharashtra.

Previously, manufacturers such as Tata Motors have expanded on-site capacity (adding a 12 MWp project to reach ~20.7 MWp at its Pune CV unit), and ŠKODA-VW deployed an 8.5 MWp rooftop system at Chakan that supplies roughly 15% of the plant’s annual demand. 

Even smaller manufacturers, such as SKF, have installed rooftop systems (1 MW) to cut costs and emissions. Meanwhile, the commissioning of a 3 GWh BESS plant in Khed City by DCNT Global and Maharashtra’s recent push past 1 GW of domestic rooftop installations underline improving local supply chains, storage capabilities

Leadership View

Paul Beach, Global President of Octillion, commented, "India's electric vehicle market is accelerating rapidly, and we're committed to ensuring this growth is truly sustainable. By converting our manufacturing to solar power, we're closing the loop—producing the clean energy storage solutions of tomorrow, using clean energy today. This is just the beginning of our journey toward our goal of carbon-neutral operations across all our India facilities by 2027."

"Accelerating cleaner, more efficient transportation in India is central to our mission as a global battery company," said Nikhil Parchure, Senior Vice President at Octillion.

"With three large-scale battery manufacturing facilities in India, two in Pune and one in Gujarat, Octillion is uniquely positioned to serve the fast-growing needs of India's electric vehicle sector; in volume, cost, and convenience. Over the last decade, we have created a robust national supply chain that India's automotive sector can rely on."