Renewable Natural Gas and the Growth of Biogas Infrastructure in North America
2026/05/06
The transition toward renewable energy sources has encouraged new approaches to methane capture and utilization. Biogas produced through anaerobic digestion is now recognized as a potential source of renewable natural gas (RNG).
Across North America, biogas infrastructure has expanded across agricultural, municipal, and industrial sectors. The distribution of digesters reflects the availability of organic feedstocks such as livestock manure, food waste, and wastewater sludge.
Methane is a powerful greenhouse gas commonly released during the decomposition of organic materials.
Agricultural manure, landfill waste, and wastewater sludge are major methane sources. Without capture systems, these emissions contribute to atmospheric greenhouse gas accumulation.
At the same time, energy demand continues to rise across North America.
Biogas digesters address both challenges by capturing methane and converting it into a usable fuel.
Biogas production facilities in North America are distributed across three main sectors.
Livestock manure is the largest feedstock segment for biogas production in North America, accounting for roughly 39.8% of the market share.
Dairy and hog farms often install digesters that convert manure into methane gas.
Wastewater treatment plants commonly include anaerobic digesters to stabilize sewage sludge.
Biogas generated during this process can be used onsite to power facility operations.
Standalone digestion facilities process food waste collected from restaurants, grocery stores, and food processing companies.
These plants often produce large volumes of biogas that can be upgraded into renewable natural gas.
Anaerobic digestion relies on controlled biological processes inside sealed reactors.
Typical system characteristics include:
- biogas composition: approximately 50–70% methane
- operating temperature: mesophilic (30–40 °C) or thermophilic (50–55 °C) conditions
- gas cleaning systems: removal of hydrogen sulfide, moisture, and carbon dioxide
- pressure control: low-pressure storage in membrane gas holders
These parameters ensure that biogas can be safely collected and utilized for energy generation.
The growing presence of biogas infrastructure has influenced several sectors.
Farm operators can convert manure into a usable energy source while improving waste management practices.
Cities can stabilize sewage sludge while producing energy that offsets treatment plant power demand.
Food processing and organic waste facilities can convert by-products into fuel for heating or electricity generation.
Biogas digesters represent an evolving component of North America’s renewable energy landscape. With installations across farms, wastewater treatment plants, and organic waste facilities, anaerobic digestion provides a pathway for converting waste streams into usable energy.
As environmental policies and renewable energy programs continue to expand, biogas infrastructure is expected to remain an important part of North America’s waste-to-energy systems.
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- PVC vs Steel Biogas Digesters in Agricultural Applications
- Biogas Storage Bladders in Renewable Natural Gas Projects
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