Oberon Fuels: Decarbonizing the Transportation Sector

Oberon’s renewable Dimethyl Ether (rDME) fuel is a cost-effective, low-carbon, zero-soot alternative to petroleum diesel. In addition, rDME is also a cost-effective carrier for hydrogen, making it easy to deliver this renewable fuel for the growing hydrogen fuel cell vehicle industry.

Additionally, when blended with propane, rDME can significantly reduce this commonly-used, clean-burning fuel’s carbon intensity. Taken together, Oberon can provide the US and global transportation sectors with practical and affordable pathways to zero-emission mobility.

We are proud to be part of a growing coalition of forward-looking vehicle manufacturers, infrastructure developers, and fuel providers who are 100% committed to making rDME a key to the long-term sustainability of our local, national, and global economies.


DME Reduces the Carbon Intensity of Propane


DME’s easy handling properties make fueling and infrastructure relatively simple and inexpensive.

As calculated by the California Air Resources Board (CARB), the current carbon intensity (CI) score of propane is 83 gCO2e/MJ. CARB has calculated that, when rDME is made from dairy biogas (which itself has a CI of -150), rDME has a CI value of -278.

The combination of rDME’s handling properties, its ability to be produced from diverse, abundant, renewable resources, and its significant CI-reducing qualities make it an excellent choice for blending with propane.

Renewable DME will play a critical role in helping industry and fleets meet the new low carbon fuel/emissions reduction standards in places like California and others around the world.


DME for Hydrogen Transport


Renewable dimethyl ether (rDME) has a number of qualities that make it an excellent carrier molecule for transporting hydrogen to power a new generation of fuel-cell electric vehicles and to provide increased supplies of renewable hydrogen:

  • DME is particularly dense in hydrogen, with six hydrogen atoms in each DME molecule.
  • DME can be made from a wide variety of renewable feedstocks at or near the source.
  • DME liquefies at low pressure (~73 psi), making it much easier and less expensive to transport than hydrogen, which can be compressed at up to 10,000 psi of pressure.
  • Converting DME into hydrogen a simple, inexpensive process compared to natural gas to hydrogen conversion.

Altogether, rDME overcomes some of the biggest barriers inhibiting the widespread use of hydrogen for transportation fuel, including: access to renewable feedstocks; modular, scalable production; and energy-dense, cost-effective storage and transport. Our novel approach to renewable hydrogen production promises similarities to the impact that distributed, rooftop solar has had on decentralizing industrial power generation.


DME: The Ideal Diesel Replacement


At Oberon, we are committed to building a supply chain for a clean-burning, non-toxic, potentially renewable diesel replacement known as DME (dimethyl ether).

DME fuel can deliver the power that diesel engines need, but with lower overall operating costs. DME is also an environmentally-friendly, non-toxic fuel that can easily meet strict emissions standards for soot and greenhouse gases.

Oberon’s DME can be produced from a variety of local waste resources, such as methane captured from a dairy farm, or organic material collected by a city sanitation department.

With DME much of our waste can become a source of local, sustainable fuel that keeps cars and trucks moving, and the air clean.

For more information on Oberon Fuels, please visit:


  • Biogas Engineering and Consulting
  • Equipment suppliers
  • NGV Engineering and Consulting

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