Energy infrastructure holding company South Jersey Industries Inc. (SJI) and Rev LNG LLC have broken ground on renewable natural gas (RNG) facilities at four Michigan dairy farms, the firms said.

Anaerobic digesters wold capture methane produced by cow manure at the Double Eagle, Roto-Z, Goma and Z-Star farms.

The four facilities, expected to be operational by late 2022, will produce a combined 3 million therms/year (about 300 MMcf/year) of RNG, the companies said.

“SJI recognizes that in order to achieve our goal of 100% carbon reduction by 2040, working collaboratively with organizations that share our same mission is critical,” said CEO Mike Renna.

Based in Folsom, NJ, SJI delivers natural gas to more than 700,000 residential, commercial and industrial customers across New Jersey via its SJI Utilities subsidiary. Its SJI Energy Enterprises subsidiary focuses primarily on clean energy development and decarbonization through renewable energy production and energy management activities.

Based in Ulysses, PA, Rev LNG is a full-service supplier of liquefied natural gas, compressed natural gas and RNG. 

“Rev LNG is committed to implementing creative energy solutions that help our company and the clients we serve to reduce our carbon footprints,” said CEO David Kailbourne. He suggested there would be a “continued partnership in this area of interest.”

SJI and Rev said the projects would include equipment “that cleans the digester-produced biogas, transforming it into commercial-grade pipeline-quality renewable natural gas.”

The digesters’ combined production will offset the negative environmental impact of 1.8 million gallons/year of gasoline consumption, according to the partners.

The two firms also recently broke ground on an RNG facility at Oakridge Dairy, Connecticut’s largest dairy farm. 

“Because of SJI and Rev LNG’s continued partnership in this area of strategic importance, SJI is positioned well to become a national leader in waste-to-energy projects by 2025,” the company said. 

In related news, Opal Fuels LLC this month announced a joint venture with GFL Renewables LLC to develop facilities to capture methane emissions from landfills for conversion to transportation fuels.

Oil and gas majors are getting into the act as well, as BP plc and Chevron U.S.A. Inc. have each announced plans to expand their RNG efforts.Canada’s Xebec Absorption Inc. said last month it plans to expand production capacity for RNH and hydrogen technology by 500% in North America, while utility Northwest Natural Gas Co. recently secured a 21-year RNG supply agreement with producer Archaea Energy Inc.