At REI Expo 2026 in Greater Noida, India, Feston ESS, the battery storage business of the Chennai inverter maker Feston SEV, has presented its ORA all-in-one cabinets. Each unit joins solar, battery, grid, generator and load, and the range runs from 5 kW with 20 kWh to 50 kW with 128 kWh.
Snapshot
Company: Feston ESS (Feston SEV, Fest Group)
Product: ORA all-in-one outdoor energy storage
Models: ORA S1 to S4, from 5 kW / 20 kWh to 50 kW / 128 kWh
Cells: LiFePO4, 100 Ah and 314 Ah
Solar input: 5 to 60 kW, multi-MPPT
Cycle life: more than 6,000 cycles; up to 90% DoD
Protection: IP54
Communication: RS485, RS232, CAN
Plant plan: 3 GWh BESS factory
Stand: Hall 3, Booth 3.144
Feston ESS is exhibiting at REI Expo 2026 in Hall 3, at Booth 3.144, at India Expo Mart in Greater Noida, Uttar Pradesh, India. It is the battery storage business of Feston SEV, a Chennai maker of solar inverters, and its ORA series has been set inside a lit arch at the corner of the stand.
The ORA has been designed for homes, shops and small commercial sites that want a single outdoor cabinet in place of several separate units. Each cabinet joins solar panels, batteries, the grid, a diesel generator and the load. According to the company's brochure, the range runs from the ORA S1, which delivers 5 kW and stores 20 kWh, to the ORA S4, which delivers 50 kW and stores 128 kWh, and the cabinets accept between 5 kW and 60 kW of solar input over several MPPTs.
The LiFePO4 batteries are rated for more than 6,000 cycles, and they can be run at up to 1C with a depth of discharge of up to 90%. The cabinets are cooled by air and protected to IP54 against dust and water, and they communicate with other equipment over RS485, RS232 and CAN.
The series is part of a larger move into storage by the group. Fest Group announced in April 2026 that Feston would set up a 3 GWh battery factory, with products that run from 5 kWh home systems to 5 MWh containers, and a model of a commercial storage site has been built into the counter of the stand.