With over 50 years of experience in the Landfill Gas Project space, we are uniquely positioned to deliver RNG to the Transportation Market.

Who is Renewable Natural Gas Company?

  • Renewable Natural Gas Company (RNGC) is a developer of Landfill Gas (LFG) to Renewable Natural Gas (RNG) projects encompassing the full design, construction, ownership, and operation process.
  • At RNGC we believe the best and highest use of the RNG is to turn it into Vehicle Fuel. 
  • RNG Vehicle Fuel is one of the cleanest burning, lowest emission fuels on the market.  As well it is a non-carbon based resource.
  • Natural Gas engines also run quieter than traditional diesel engines, resulting in less ambient noise during operation and idling.
  • All of these factors lead to a growing market of Natural Gas Vehicles and an increased demand of RNG to fuel them.

What is Landfill biogas (LFG)?

  • LFG is generated by the decomposition of organic waste in a landfill. It is nominally composed of equal parts methane and carbon dioxide with trace amounts of nitrogen, oxygen, and other organic compounds. The methane, measured in British Thermal Units (“BTUs”), is processed into pipeline quality RNG by removing the CO2  and other compounds.
  • The amount of LFG generated is a function of the amount of organic waste deposited in a landfill. LFG flow volumes can be reasonably estimated based upon the tonnage and composition of the historical waste stream.
  • Gas production grows as the landfill expands. Additional wells are added as the volume of waste deposited in the landfill increases. 
  • Even if a landfill is closed or stops accepting waste, it will continue to produce LFG for more than 10 years before there is a significant decline in volume.
  • An experienced wellfield management and operations team is critical to producing the proper quantity and quality of LFG.

What is Compressed Natural Gas (CNG) & LIQUEFIED Natural Gas (LNG)?

Two forms of natural gas are currently used in vehicles: compressed natural gas (CNG) and liquefied natural gas (LNG). Both are domestically produced, relatively low priced, and commercially available. Considered alternative fuels under the Energy Policy Act of 1992, CNG and LNG are sold in units of gasoline or diesel gallon equivalents (GGEs or DGEs) based on the energy content of a gallon of gasoline or diesel fuel.

Compressed Natural Gas

  • CNG is produced by compressing natural gas to less than 1% of its volume at standard atmospheric pressure. To provide adequate driving range, CNG is stored onboard a vehicle in a compressed gaseous state within fuel tanks at a pressure of 3,000 to 3,600 pounds per square inch.
  • CNG is used in light-, medium-, and heavy-duty applications. A CNG-powered vehicle gets about the same fuel economy as a conventional gasoline vehicle on a GGE basis. One GGE equals about 5.66 pounds of CNG.

Liquefied Natural Gas

  • Liquefied natural gas, or LNG, is natural gas in its liquid form. LNG is produced by purifying natural gas and super-cooling it to -260°F to turn it into a liquid.
  • During the process known as liquefaction, natural gas is cooled below its boiling point, removing most of the extraneous compounds found in the fuel. The remaining natural gas is primarily methane with small amounts of other hydrocarbons.

Because of LNG's relatively high production cost as well as the need to store it in expensive cryogenic tanks, the fuel's widespread use in commercial applications has been limited. LNG must be kept at cold temperatures and is stored in double-walled, vacuum-insulated pressure vessels. LNG is suitable for trucks that require longer ranges because liquid is more dense than gas (CNG) and, therefore, more energy can be stored by volume in a given tank. LNG is typically used in medium- and heavy-duty vehicles.

How do we get gas to market?

There are several ways that Renewable Natural Gas (RNG) produced from landfill gas can be marketed to end users.  While standard off-take contracts where RNG is delivered through a pipeline remains a viable option, there are other strategies that can provide additional upside $/mmbtu, long-term contract options, while retaining the ability to generate and sell RINs.  Below are three off-take options that RNGC has determined provide viable long-term off-take opportunities;

  1. Pipe the RNG into the existing pipeline infrastructure
  2. Fuel hauling company Garbage Trucks at the landfill
  3. Transport RNG as Compressed Natural Gas (CNG) or Liquid Natural Gas (LNG) to an end-user
  4. Transport RNG as CNG to an off-site fueling station