The Green Solutions segment delivers opex-based green utilities and renewable energy solutions, enabling customers to transition towards cleaner energy while ensuring operational efficiency and reliability.
This segment includes green utilities on a build-own-operate basis, bioenergy solutions (bio-CNG), renewable energy solutions, and green hydrogen. With contract tenures ranging from 10 to 25 years, it provides stable, annuity-based returns while supporting customers in their decarbonisation journey.


Build Own Operate Solutions
TOESL's assured green utility solutions are based on the build-own-operate model for optimised lifecycle performance

Green Hydrogen
Powering a green transition through scalable alkaline systems and solid oxide electrolysers

Renewable energy
First Energy (FEPL), under the Thermax brand, delivers bespoke renewable energy solutions worldwide
Through green utilities, renewable energy, bioenergy, and green hydrogen, Thermax’s Green Solutions segment delivers measurable impact across industries. We support both hard-to-abate sectors and those accelerating their energy transition, enabling cleaner operations, improved efficiency, and long-term sustainability.
