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BESS Manufacturer

Designed, engineered & manufactured in India

We are experts in DC-coupled energy storage, building end-to-end battery systems for commercial, industrial and utility customers.

From cell to container

Feston ESS designs and manufactures complete battery energy storage systems: LiFePO4 modules, BMS, power conversion, MPPT and liquid-cooled containers. Because we build every layer, our systems integrate cleanly and get the most out of every solar panel.

0 GWhManufacturing capacity
0Product lines
2.5 kWh–5 MWhSystem range
ChennaiHeadquarters & factory

What sets us apart

01DC-coupled by design

Integrated MPPT charges batteries directly from PV, with fewer conversion stages and higher solar utilisation.

02End-to-end engineering

Cells, modules, BMS, PCS and thermal systems are designed to work together.

03Safety first

LiFePO4 chemistry, aerosol fire suppression, gas detection and IP67 packs.

04Local manufacturing

A 3 GWh facility in Chennai with automated assembly and laser welding.

Our values

What drives us

01

Reliability

Systems built to run for thousands of cycles in demanding conditions.

02

Safety

Protection engineered in at the cell, module and system levels.

03

Efficiency

Fewer conversion stages and smarter energy management.

04

Made in India

Local design, engineering and manufacturing at scale.