Southwest Gas Begins RNG Projects to Provide Clean Energy to Customers

Southwest Gas is actively working with RNG developers to interconnect various RNG projects across company service areas with Southwest Gas' facilities.

There are four projects in Arizona and one in California that are approved and will take RNG to market shortly. Together, these five projects will produce over 10 million therms of RNG for injection into Southwest Gas' system:

  • Tres Rios Wastewater Project in Tucson, Ariz. The project is expected to be operational in July 2021.
  • SoCal Biomethane at the Victor Valley Wastewater Reclamation Authority facility in Victorville, Calif., is expected to begin service by August 2021.
  • Sunoma Renewable Biofuel Project in Gila Bend, Ariz. Partnered with Paloma Dairy, the project is expected to begin production October 2021.
  • Butterfield RNG 1, LLC, at the Butterfield Dairy in Buckeye, Ariz., The project is anticipated to be operational by December 2021.
  • Maricopa RNG 1, LLC, at the Milky Way Dairy in Maricopa, Ariz., is anticipated to be completed by December 2022.

Apart from the projects above, Southwest Gas continues to identify opportunities to introduce more RNG to consumers, with several more projects being evaluated in Arizona, California and Nevada.

"We're proud of our efforts to help bring RNG to market by connecting sources of RNG with end-users by way of the Company's natural gas distribution system," said John Hester, president and CEO of Southwest Gas. "We have sought legislation, worked with regulators and created partnerships to pave the way. These five projects are just the beginning of our commitment to make ever-increasing amounts of RNG available. Customers have told us that they prefer clean, affordable and reliable natural gas, and we are excited about the prospects of RNG to further reduce emissions and help protect our environment."

In addition to RNG, Southwest Gas is also looking into incorporating other low- or zero-carbon emission energy solutions, such as hydrogen, into the company’s portfolio.

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