EnviTec Biogas Commissions its Largest U.S. Anaerobic Digestion Plant Online Strengthening Partnership with SJI

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Apr 09, 2025, 17:32 ET

WATERTOWN, S.D., March 28, 2025 /PRNewswire/ -- EnviTec Biogas has reached a significant milestone in the U.S. market. With the recent commissioning of its largest anaerobic digestion plant in the country to date, the biogas specialist - through its U.S. subsidiary - is strengthening its partnership with SJI Renewable Energy Ventures and local suppliers. Located in South Dakota, the plant has been processing over 300,000 gallons (1,100 cubic meters) per day of manure from more than 9,500 dairy cows per day since the beginning of the year. It is expected to produce 483 standard cubic feet per minute (scfm) of renewable natural gas (RNG) (778 Nm³/h biomethane), equivalent to around 177,000 million BTU per year. This new facility marks a significant milestone for EnviTec Biogas, which has been pioneering the biogas industry in the U.S. since the commissioning of its first project in 2012.

Located in South Dakota, the plant has been processing over 300,000 gallons (1,100 cubic meters) per day of manure from more than 9,500 dairy cows per day since the beginning of the year.

"This facility marks the fifth of a total of 15 biogas plants we are developing for our client, a leading company in renewable energy and sustainable solutions," explains Lars von Lehmden, CEO of EnviTec Biogas USA Inc. Eight of these plants are on farms operated by a leading diversified agribusiness in the US. "This new facility is a true win-win for both business and the environment," adds Timothy Logan, President of EnviTec Biogas Construction LLC. "Not only does it convert organic dairy waste into renewable biogas, but it also helps reduce the overall carbon footprint of dairy farming."

Local Tank Manufacturing and Comprehensive Service Offerings

Beyond this milestone, EnviTec Biogas continues to stand out as the only provider in the U.S. market offering high-quality, locally manufactured concrete tanks. This is made possible through a sustainable partnership with Collins Precast LLC, a leading producer of precast concrete components and buildings in the Upper Midwest.

"Our concrete tank design is the first of their kind to be approved in South Dakota," Logan adds. In addition to constructing the integrated biogas and biomethane upgrading facility, the client has also signed a multi-year service contract with EnviTec to provide technical scheduled services, service on demand, 24/7 hotline support, and biological services from the office/warehouse in Watertown, SD. "Especially during the commissioning and ramp-up phase, we have been providing weekly sampling and analysis through our laboratory in Watertown," says Logan.

With the completion of the fifth project in this partnership with SJI, EnviTec Biogas has now successfully delivered one-third of the planned portfolio for its client. Three additional projects recently completed cold commissioning and are transitioning to ramp up stage, with EnviTec's first Minnesota projects being brought online later this year.

EnviTec Biogas AG has completed over 700 biogas plants since 2002 in 18 countries worldwide with feedstocks ranging from dairy manure to food waste. EnviTec Biogas AG's portfolio of technologies includes anaerobic digestion, gas upgrading, ammonia stripping, bio-LCO2 and bio-LNG.

For more information on EnviTec Biogas and its renewable energy solutions, please visit

www.envitec-biogas.us

About EnviTec Biogas USA Inc.

EnviTec Biogas USA Inc. is an independent subsidiary of EnviTec Biogas AG, Germany. Based in Beaverton, Oregon, the company covers the entire value chain to produce renewable natural gas, heat and power: this includes the planning and construction of anaerobic digestion and biogas upgrading plants as well as their commissioning. If required, the company handles biological and technical services and offers operational management. The parent company operates 87 of its own plants, making it the largest biogas producer in Germany. EnviTec's business activities also include the production and marketing of climate neutral fuels (bio-LNG) for the transport sector as well as food-grade liquid carbon dioxide (LCO₂). The company is currently represented in 16 countries worldwide with its own companies, sales offices, strategic cooperations, and joint ventures. In the USA, EnviTec has offices and warehouses in Rochester in New York and Watertown in South Dakota and is headquartered in Beaverton, Oregon. In 2023, the EnviTec Group generated revenue of USD 429.29* million and EBT of USD 90.84* million. The Group currently employs some 690 people. EnviTec Biogas AG has been listed on the Frankfurt Stock Exchange since July 2007.
*Rate as of Jan 3, 2025