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Biomethane enrichment and storage

Distributed, low-cost, energy efficient technology to enrich and store biogas

July 2020
Gallery Biomethane enrichment and storage 1
Gallery Biomethane enrichment and storage 1


Grassroots Energy's innovative biomethane Solution offers a sustainable energy option for the agricultural sector.

More than ever there is a need for reliable, local and renewable energy solutions for agriculture. In many cases, waste from agricultural activities can be processed into biomethane or 'BioCNG' (enriched from Biogas), a high-quality clean fuel that can be used for cooking, transportation and agricultural machinery to improve the energy access. Grassroots Energy's Solution processes farm and agri waste into a low cost and sustainable biogas fuel. The Solution offers an energy efficient and modular biomethane system which can solve diverse challenges in agriculture. The Solution offers a decentralised, modular CO2 scrubbing system operating at atmospheric pressure and is three times more energy efficient than the mainstream alternative. In addition, the innovative adsorption-based cylinder storage can reduce storage pressure by three times for the same storage mass. This approach leads to reduced investments and operational challenges.

Label Date July 31, 2020
From United States
Maturity stage Prototype testing in the real world
Looking For Validity, partnerships, networking, investors

The environmental benefits

  • Each module generating biomethane displaces 4500kg CO2 per year
  • No non-renewable resources consumed or used in production
  • Water used in production is recycled

The Financial benefits

  • Payback period in under 4 years
  • Cost savings of 25-35% compared to mainstream alternative

Activity Region

  • /



  • Headquarters
  • Activity

Company Profile

Grassroots Energy

Grassroots Energy has developed a low-cost energy efficient technology to purify biogas in a cost-effective way.

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Headquarters Fairfax, VA 22031, USA

Networking Partner

Cleantech Group

The Cleantech Group is a company that supports the development and marketability of clean technologies. The Cleantech Group provides members of its Cleantech network access to capital, investors, research and promotional opportunities. The group also provides advisory services for large corporations and governments. Founded in 2002, the Cleantech Group owns the term "cleantech" as a registered trademark.

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Solutions Associated 49
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The information set out above, is solely for the purposes of information and the Solar Impulse Foundation does not provide any guarantee as to its authenticity, completeness or accuracy. This information does not constitute investment advice or a recommendation to buy into, transact or to enter into any agreement with any of the parties or persons mentioned above. Potential investors or interested parties are solely responsible for their investment or business decisions and for performing any due diligence required by the circumstances. The innovator Grassroots Energy has asserted ownership of the intellectual property rights for images, videos, and content showcased above, affirming full and unrestricted usage rights, and has provided explicit permission for the Solar Impulse Foundation to publish such information designated as "public" in the application form.