Southwest Gas invests in US RNG projects

Southwest Gas has invested in several RNG projects in Arizona and California.

The firm is working with RNG developers to interconnect various RNG projects across its service areas with Southwest Gas’s facilities. There are currently four projects in Arizona and one in California that are approved and will take RNG to market shortly, the company said.

Together, these five projects will produce over 10 million therms of RNG for injection into Southwest Gas’s system:

  • Tres Rios Wastewater Project in Tucson, Arizona – expected to be operational in July

  • SoCal Biomethane at the Victor Valley Wastewater Reclamation Authority facility in Victorville, California – expected to begin service by August

  • Sunoma Renewable Biofuel Project in Gila Bend, Arizona, partnered with Paloma Dairy – expected to begin production in October

  • Butterfield RNG 1, at the Butterfield Dairy in Buckeye, Arizona – expected to be operational by December

  • Maricopa RNG 1 at the Milky Way Dairy in Maricopa, Arizona – expected to be completed by December 2022.

Aside from the above projects, Southwest Gas said it continues to identify opportunities to introduce more RNG for 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 looking to incorporate other low or zero-carbon emission energy solutions, such as hydrogen, into its portfolio.

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