Feston SEV Pvt. Ltd., a solar inverter and power electronics company under FestGroup, has entered the Battery Energy Storage Systems (BESS) segment, expanding its portfolio into integrated solar, storage and power‑electronics solutions.
The company has initiated its BESS manufacturing journey with a planned 3 GWh annual production capacity and a product portfolio ranging from 5 kWh residential systems to 5 MWh containerised solutions for commercial and industrial applications.
The move comes as India’s solar market transitions from capacity-led growth to energy management-driven demand. While solar installations have scaled rapidly, the intermittent nature of generation and the growing impact of time-of-day tariffs are increasing the need for storage-backed solutions.
Across both the commercial and industrial (C&I) and residential segments, energy users are increasingly looking for systems that can align generation with consumption and ensure more predictable power availability.
As part of its entry into the segment, Feston has signed a Memorandum of Understanding (MoU) with Light Mechanics Private Limited for the design, supply and commissioning of a prismatic battery pack assembly line. The facility is expected to strengthen the company’s manufacturing and integration capabilities in the BESS space.
The development reflects a broader industry trend, where inverters are evolving from conversion devices into control systems managing energy flows between solar, storage and the grid. This shift is driving demand for integrated offerings that combine generation, storage and power electronics within a single system architecture.
Commenting on the development, Sampath Kumar, CEO of Fest Group (Feston SEV Pvt. Ltd.), said, “The requirement today is moving beyond generation to how energy is managed across time. Across both C&I and residential segments, storage is becoming central to improving reliability and aligning energy usage with demand.”
Industry analysts expect India’s storage market to see accelerated growth, driven by policy push, round‑the‑clock clean energy tenders, and rising adoption across industrial and distributed segments.
Fest Group’s (Feston SEV Pvt. Ltd.) entry into BESS positions it to participate in this next phase of the energy transition, where system-level integration is expected to play a defining role.
