Renewable natural gas (RNG) is a transportation fuel made from organic waste. It drastically reduces carbon emissions by an average of 300% versus diesel, and at a fraction of the price. Unlike conventional natural gas, renewable natural gas is not a fossil fuel and does not involve drilling.

Clean Energy is the largest provider of renewable natural gas for the transportation industry in North America. Our extensive network of 590 fueling stations across the U.S. ensures convenient access for the 25,000 heavy-duty trucks, buses, and large vehicles running on RNG daily.


Greenhouse gases are bad.
We make them something good.

Recycling Icon with Cow

Livestock manure and landfills account for 27% of methane emissions in the U.S.


When organic matter decays, it naturally produces methane: one of the greenhouse gases most detrimental to the environment. By capturing the methane, we prevent it from entering and damaging the atmosphere. Then, we turn it into renewable natural gas — the cleanest fuel in the world.

Solutions for dairies
Reduce Emissions Icon

The transportation industry is responsible for 28% of the total greenhouse gas emissions in the U.S.

Our ultraclean renewable natural gas powers heavy-duty trucks and buses, replacing dirty diesel and gasoline. When combined with the latest natural gas engines, renewable natural gas is a zero emissions solution certified by the EPA and the California Air Resources Board.

Solutions for fleets
CO2 Reduction
Reduce CO2 Icon

Keeps carbon out of the atmosphere.
And your green fleet on the road.

The beauty of renewable natural gas is that it reduces carbon on two fronts: at the source where it's made and on the road.

That’s why it’s able to achieve such a low carbon intensity rating. Renewable natural gas is the only alternative fuel that can avoid more emissions than it generates.

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Carbon Intensity

100 50 ZERO EMISSIONS -100 -200 -300 -400 -500
100.6 Gasoline
34.0 Hydrogen
35.6 Renewable Diesel
27.8 EV Grid

Source: California Air Resources Board, Q1 2022 LCFS data, and certified pathways as of June 18, 2022.

Latest news

Knight Transportation, Cummins, and Clean Energy Demonstrate Potential of Ultra-Low Carbon Fuel Through Cummins X15N Natural Gas Powertrains in California

Clean Energy Inks New Fueling Agreements with Customers Looking to Reduce Carbon Emissions with RNG

Tourmaline and Clean Energy Announce $70 Million Joint Development Agreement to Build CNG Stations in Western Canada

From Farm to Fuel: Dairy’s Role in Supplying Renewable Natural Gas

Clean Energy to Provide 86 Million Gallons of RNG to One of Nation’s Largest Transit Systems, San Diego MTS

Clean Energy Announces Sustainability-Linked Financing with Riverstone Credit Partners to Fund RNG Growth

Clean Energy Renewable Natural Gas to Fuel Trucks for Pennsylvania Refuse Authority, WM and Others

Agriculture and Businesses Come Together to Work with Congress to Incentivize Alternative Fuel Adoption

Clean Energy to Report Third Quarter 2022 Financial Results on November 8; Conference Call to Follow at 1:30p.m. Pacific Time

Clean Energy Announces Opening of Ohio Renewable Natural Gas Station for Amazon and Other Trucking Fleets

Clean Energy Celebrates 25th Anniversary, 15 Years as Public Company, with NASDAQ Closing Bell Ringing

Clean Energy Supplied Fuel for Inaugural Bunkering of First Maritime LNG-powered Ship Deployed on US West Coast

Clean Energy Continues to Decarbonize Transportation with New Fuel Contracts, Blazes Ahead with Renewable Natural Gas Development

Clean Energy Lauds Passage of Alternative Fuel Tax Credit

What is RNG?

Clean Energy Applauds Bipartisan Senate Bill Supporting Renewable Natural Gas Tax Credit to Help Fight Climate Change

Clean Energy Expands Sustainable Fueling with Contracts for Renewable Natural Gas, More Dairy Development Projects

Clean Energy and Enbridge Partner to Make CNG Available to UPS Canada Fleet Vehicles in Ontario

Clean Energy ‘RNG Day’ Investor Presentation Details Five-year Strategic and Financial Plan, Development of RNG Supply Business

Clean Energy to Host RNG Strategy and Financial Outlook Webcast

Clean Energy Appoints Energy Sector Leader Lorraine Paskett to Board of Directors

Clean Energy to Host RNG Strategy and Financial Outlook Webcast

Clean Energy Widens Path for Carbon Reduction in Transportation; Signs Deals for More Renewable Natural Gas, New Stations

Clean Energy Appoints Karine Boissy-Rousseau to Board of Directors