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 600 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
34.1 Hydrogen
43.0 Renewable Diesel
48.2 Electric Grid

Source: California Air Resources Board, Q3 2023 LCFS data, and certified pathways as of January 31, 2024.

Latest news

Clean Energy Expands Boron LNG Plant Capacity to Accommodate Increased Demand for the Cleaner Fuel Driven by Pasha Hawaii Container Ships

Clean Energy Expands Fueling Footprint in So. California

Cemex US Signs Renewable Natural Gas Fuel Agreement with Clean Energy to Power Fleet in Southern California

Bi-Partisan Bill Introduced in U.S. Senate to Encourage the Use of Ultra-Low Carbon RNG in Transportation

Clean Energy and Maas Energy Works Join Forces to Build Nine Renewable Natural Gas Dairy Production Facilities Across Seven States

Clean Energy Announces First Injection of Renewable Natural Gas at Victory Farms Dairy

Clean Energy Appoints Patrick J. Ford to Board of Directors

Clean Energy Turns DFW Area into a Renewable Natural Gas Hub

Clean Energy’s Renewable Natural Gas Facility at Marshall Ridge Dairy in Iowa Begins Production

Rimere Receives $10 Million Strategic Investment from Clean Energy

Clean Energy’s Renewable Natural Gas Digester at Tri-Cross Dairy Begins Production

Clean Energy Begins Producing Renewable Natural Gas at Latest Project 

Clean Energy Announces Up to $400 Million in Financing with Stonepeak to Continue Expansion of Renewable Natural Gas Infrastructure

Clean Energy Opens Renewable Natural Gas Fueling Station in Baltimore

Clean Energy’s First Renewable Natural Gas Facility Begins to Sell Environmental Credits

Food Express Welcomes Truck Equipped with the New Cummins 15-Liter Natural Gas Engine into Fleet

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