Trusted by Industry Leaders
Powering India's Future with Unlocked Waste Energy.
The Challenge
India generates over 500 million tons of agricultural residue annually. Historically, much of this biomass has been burned in fields, driving severe air pollution and health hazards. Compounding this environmental challenge is a heavy reliance on costly fossil fuel imports, which exposes the economy to volatile global markets and supply chain disruptions
The Bio-CNG Advantage
We view this as a strategic opportunity. By converting agricultural waste into clean, domestically produced Bio-CNG, we mitigate environmental hazards and strengthen India's energy security, all while generating sustainable employment in rural communities.
0+ TPD
Peak Daily Bio-CNG Capacity
0+ Tons
Agricultural Waste Upcycled
0+ Tons
CO₂ Emissions Eliminated
About Gruner Renewable
Gruner Renewable Energy is a Noida-based clean energy company pioneering India's Bio-CNG revolution. We design, build, and operate compressed biogas plants that transform agricultural residue into sustainable transportation fuel, reducing fossil fuel dependency while empowering rural communities.
Pioneering Clean Energy Since 2023
Founded with a vision to address India's dual challenge of agricultural waste management and energy security, Gruner has rapidly grown to become a leading Bio-CNG infrastructure company. We've secured over ₹1,500 Crore in project orders and $60M in funding to expand our CBG footprint.
Our proprietary technology processes diverse feedstocks including Napier Grass, agricultural residue, and organic waste to produce high-quality compressed biogas that meets automotive fuel standards.
Asia's Largest CBG Plant Rs 220 Crore investment in Gujarat
Our Mission
To accelerate India's transition to clean energy by converting agricultural waste into sustainable Bio-CNG fuel.
Industry Leader
Building Asia's largest CBG plant in Gujarat with 1 million TPY processing capacity.
Pan-India Presence
Operating across 8+ states with partnerships from major Oil Marketing Companies.
Sustainable Impact
Commitment to ESG Commitment to measurable environmental and social impact: reducing industrial carbon footprints while creating scalable economic value for India’s agricultural sector
₹1,500+ Cr
Project Orders
Project Orders
57+
Plants Planned
Plants Planned
14
States Covered
States Covered
Our Expertise
Why Partners Choose Gruner Renewable
Complete capabilities across the bioenergy value chain, from
development to operations.
50+ Plants Planned
EPC Services
Delivering full-lifecycle Bio-CNG infrastructure from conceptual design to final commissioning, powered by precision German technology.
99.5% Uptime Target
O&M Services
Comprehensive operations and maintenance ensuring optimal plant performance and longevity.
German Tech Partner
Technology Partnership
Collaboration with BioEnergy Germany for cutting-edge biogas technology and engineering design.
88K+ TPY Capacity
Fuel Offtake
Structured arrangements with major oil marketing companies for Bio-CNG distribution.
How It Works
From agricultural waste to clean energy.A proven transformation powered by state-of-the-art German technology and fortified by strategic industry collaborations.
01
Feedstock
1. Multi-feedstock, such as paddy straw, Napier grass, MSW, Press mud, bagasse etc.
2. Ongoing technology research on processing other kinds of feedstock
02
Pre-Treatment
1. Mechanical & thermo-mechanical pretreatment of difficult feed stocks using shredder and extruders.
2. Gruner has global partnership for multiple technology pathways to pre-treat feedstock
03
Digester
1. Continuous Stirred Tank Reactor (CSTR)-based Pre- and post-fermentation technology
2. Paddle mixer for handling feedstock for high turbulence Mixing
3. Double roof membrane for gas storage with standard accessories
04
Gas Treatment
1. Chemical scrubber technology for H₂S removal (Impurities in biogas)
2. Gruner hold technology license in India from Patent Energy Technology for H₂S Bangalore
05
Gas Upgradation
1. CO₂ removal using membrane-based technology.
2. VPSA technology for CO₂ removal.
3. Best of Class Membrane modules from US.
4. Gas Compressors from Leading global players-Atlas Copco and Burckhardt Compression
Step 01
Feedstock
1. Multi-feedstock, such as paddy straw, Napier grass, MSW, Press mud, bagasse etc.
2. Ongoing technology research on processing other kinds of feedstock
Step 02
Pre-Treatment
1. Mechanical & thermo-mechanical pretreatment of difficult feed stocks using shredder and extruders.
2. Gruner has global partnership for multiple technology pathways to pre-treat feedstock
Step 03
Digester
1. Continuous Stirred Tank Reactor (CSTR)-based Pre- and post-fermentation technology
2. Paddle mixer for handling feedstock for high turbulence Mixing
3. Double roof membrane for gas storage with standard accessories
Step 04
Gas Treatment
1. Chemical scrubber technology for H₂S removal (Impurities in biogas)
2. Gruner hold technology license in India from Patent Energy Technology for H₂S Bangalore
Step 05
Gas Upgradation
1. CO₂ removal using membrane-based technology.
2. VPSA technology for CO₂ removal.
3. Best of Class Membrane modules from US.
4. Gas Compressors from Leading global players-Atlas Copco and Burckhardt Compression
As Featured In
Ongoing & Upcoming Bio-CNG Plants Across India
Strategic expansion targeting high-feedstock regions with strong demand for clean transportation fuel
7
Maharashtra
Active
4
Andhra Pradesh
Active
3
Odisha
Active
3
Uttar Pradesh
Active
3
Gujarat
Active
1
Madhya Pradesh
Active
0
Karnataka
Soon
0
Punjab
Soon
0
Haryana
Soon
0
Jharkhand
Soon
0
Rajasthan
Soon
0
Bihar
Soon
0
Telangana
Soon
0
Chhattisgarh
Soon
57+
Total Plants
14
States
20+
O & M
10+
Retail Outlets
Gruner Renewable EnergyProject Sites
57+ Total Plants
Recognition & Certifications
Trusted by industry, certified by authorities
Industry Recognition
Recognized as "India's Fastest Growing Sustainable Brand 2023-24," with our CEO honored among "India's Greatest Leaders for Sustainable Practices."
Association Memberships
Proud member of the Indian Biogas Association (IBA), actively collaborating to drive the national SATAT initiative forward.
Regulatory Compliance
100% compliant with MNRE mandates, PESO safety guidelines, and CPCB environmental parameters across all operations.
Certified Bio-CNG Quality
ISO 9001 and ISO 14001 certified processes yielding automotive-grade Bio-CNG that strictly meets IS 15130 specifications
Excellence Awards
Recipient of multiple international awards recognizing our rapid scalability and structural innovation in German-engineered biomass digestion.
Safety Standards
Maintaining a flawless zero-incident safety record powered by 24/7 advanced SCADA automation and heavily reinforced infrastructure.