Brightmark announces another RNG project, this time in South Dakota

In California, Brightmark, a San Francisco-based waste and energy development company, announced that it has signed a manure supply agreement with two South Dakota dairy companies, Boadwine Farms, Inc. and Mooody County Dairy Limited Partnership, to capture methane produced by nearly 12,000 dairy cows and heifers and convert it into renewable natural gas. The project is anticipated to produce 217,000 MMBtu of renewable natural gas each year, which is equivalent to the amount of gas needed to drive 2,492 vehicles for a full year. Brightmark is developing the project, and the company will also own and operate it upon completion.

The Athena renewable natural gas (RNG) project will include the construction of new anaerobic digesters on three Minnehaha County farms: Boadwine Farms, Pioneer Dairy, and Moody Dairy. The 11,710 cows that live on these farms produce a total of 55.6 million gallons of manure each year. After the project is complete, the methane generated by this manure will be captured, cleaned, and converted into RNG, which can be used for transportation, cooking, or electricity. The gas will be injected into the local interstate pipeline system for use statewide.