Disruptors for GOOD | Social Entrepreneurs and Social Enterprises

8 Startups Turning Agricultural Waste into Clean Energy

Dec 16, 2025
The discussion highlights the innovative approaches startups are taking to convert agricultural waste into clean energy. From Brightmark's transformation of dairy manure into renewable natural gas to Husk Power's mini-grids powered by rice husks, these companies are tackling waste while lowering emissions. Char Technologies uses pyrolysis for carbon sequestration, and Anergia's facilities produce reliable clean energy from organic waste. This movement fosters a circular bioeconomy, turning waste into valuable resources that benefit farmers and communities.
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INSIGHT

Agricultural Waste Is A Massive Energy Resource

  • Agricultural waste represents one of the largest untapped renewable resources globally.
  • Managing its scale can simultaneously solve pollution and energy access problems.
INSIGHT

Anaerobic Digestion Scales To Regional RNG

  • Anaerobic digestion can capture methane from manure and produce renewable natural gas at scale.
  • Brightmark Energy demonstrates this by processing manure from tens of thousands of dairy cows and producing RNG for pipelines.
INSIGHT

Gas Fermentation Produces Sustainable Fuels

  • Gas fermentation can convert agricultural and industrial emissions into fuels and chemicals.
  • Lanzatec has produced millions of gallons of sustainable ethanol and SAF using this approach.
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