Clarke Energy, a Rehlko company, has successfully commissioned its first membrane-based biogas upgrading plant in India. This milestone supports India’s clean energy transition and is located at a municipal waste site operated by Srinivas Waste Management Services in Chetpet, Chennai.
Clarke Energy has operated in India for 30 years, installing nearly 2GW of low-carbon, renewable, and resilient power across India and Bangladesh. The company is recognized for its success in UK-India business collaboration.
The SWMS site processes biodegradable organic food waste from the local region, converting it into biogas and soil improver, benefiting the community. This project supports India’s SATAT initiative, which aims to establish 5,000 bio-CNG plants nationwide. Clarke Energy’s membrane upgrader offers a scalable, efficient, and locally manufactured solution to meet these goals.
Building on its 30-year presence in India’s biogas sector, Clarke Energy demonstrates its capability to deliver advanced renewable gas solutions supporting India’s circular economy.
The integrated solution includes a biogas dryer, scrubber, low-pressure compressor, two-stage membrane separation, and complete instrumentation and piping. Key components were sourced locally, ensuring competitive delivery timelines and sustainability benefits. Initial commissioning confirms the system exceeds performance guarantees with methane purity over 97.4% and minimal losses.
Kyle Quinn, President of Clarke Energy, said this project is the first fully Indian-designed, developed, and manufactured biogas upgrader. It demonstrates how international expertise can be combined with local execution to support India’s clean energy future.
Compared to PSA systems, Clarke Energy’s membrane upgrader offers higher methane recovery, potentially lower operational costs, and modular scalability. These features make it suitable for urban waste-to-energy applications.
Rehlko facilitates sustainable infrastructure development through high-impact, regionally tailored solutions. Clarke Energy’s project exemplifies Rehlko’s commitment to local innovation and circular economy technologies.
This project highlights Rehlko’s focus on scalable clean energy systems, local manufacturing ecosystems, and community-centered sustainability outcomes.


