The development of RNG projects can benefit the local economy through the construction of RNG processing and fueling station infrastructure and sale of natural gas-powered vehicles. Biogas feedstocks for RNG are generated continuously from a variety of sources. It leverages existing infrastructure such as pipelines and heavy-duty vehicles. RNG can be used as a baseload fuel source with high availability rates. Use of RNG increases and diversifies domestic energy production. Use of RNG can provide benefits in terms of fuel security, economic revenues or savings, local air quality and greenhouse gas emission reductions. LMOP Landfill and Landfill Gas Energy Project Database.This map shows operational RNG projects in the United States where the biogas is generated from landfills or livestock waste anaerobic digesters. Diagrams of RNG Sources, Gas Treatment and End UsesĬlick on a thumbnail image to see the full-sized diagram.īiogas from a variety of sources is being upgraded into RNG across the United States.
This description has been developed by EPA’s voluntary programs. *RNG is a “term of art” and there is not at present a standard definition. View and use pertinent biogas-related tools and resources in EPA’s Biogas Toolkit. Read more about RNG in EPA’s resource An Overview of Renewable Natural Gas from Biogas. Typically, RNG injected into a natural gas pipeline has a methane content between 96 and 98 percent. Once upgraded, the gas has a methane content of 90 percent or greater. Treatment includes removing moisture, carbon dioxide (CO 2) and trace level contaminants (including siloxanes, volatile organic compounds, or VOCs, and hydrogen sulfide), as well as reducing the nitrogen and oxygen content. Raw biogas has a methane content between 45 and 65 percent, depending on the source of the feedstock, and must go through a series of steps to be converted into RNG. RNG can be used locally at the site where the gas is created or it can be injected into natural gas transmission or distribution pipelines. Show/Hide Data RNG Projects Operating by Year Year
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