Kent RO Systems has invested over Rs 250 crore in a 3.5 GWh lithium battery and solar inverter plant in Noida and targets Rs 1,750 crore revenue in FY27, says CMD Mahesh Gupta. Water purifier maker Kent RO Systems has invested over Rs 250 crore in a new plant in Sector 159, Noida , that makes lithium battery packs and solar hybrid inverters, as it moves into the home energy business with.