In partnership with dairy farmers or other commercial facilities, Maas Energy Works specializes in developing, owning, and operating anaerobic manure digesters. We support multiple end uses for the biogas captured including creating renewable electricity, Renewable Compressed Natural Gas (R-CNG), and Renewable Natural Gas (RNG). Daryl Maas, president of Maas Energy Works, has learned about digesters not by selling them to others, but by building, owning, and operating them himself.