About
We develop, build, operate, & improve biogas projects all across the United States.
Our Journey
After finishing up a career in the US Air Force in 2007, Daryl Maas came back to his hometown in northwest Washington. Working with childhood friends and family relations, he built the nation’s first successful dairy digester business model by operating manure digesters as a tenant on family dairy farms.
In 2010, Daryl moved with his wife and two (now three) kids to Redding, California. He founded Maas Energy Works (MEW) to explore the growth opportunities in the California renewable energy market. After connecting with Leo and Peter Van Warmerdam, MEW completed its first California dairy digester on their dairy in May of 2013. The site is still going strong 11 years later.
MEW has since developed 70+ new or upgraded dairy digester facilities across eleven states, making MEW the most experienced dairy digester developer in the United States. We are proud to say that every digester we’ve developed is still in operation today. As a digester developer, MEW meets the dairy farmer and builds a business model that works for both parties.
Our Staff
Daryl Maas
Chief Executive Officer
After finishing up a career in the US Air Force in 2007, Daryl Maas returned to his hometown in a dairy community in northwest Washington. He discovered many of his friends in dairy families were interested in deploying digester technology to capture energy from animal waste. He developed and commissioned his first biogas facility in 2009. Since then, Maas Energy Works has grown to be the leading developer, owner and operator of dairy digesters in North America, with over 40 completed projects serving over 50 dairies. Maas Energy Works builds digesters at no cost to the dairy while sharing profits. Or, the company can act as project manager for families that prefer to finance and own their digesters themselves. Now active in over a dozen states, Maas Energy Works employs over 80 full time dairy digester professionals whose job is to create “Renewable Energy That Works.”
Geovany Osorio
Chief Personnel Officer
Hailing from Ecuador with a Masters in Business Admin and five years of experience as the General Manger of a manufacturing plant , "Geo" is our Chief Personnel Officer (CPO). In coordination with our CEO, Geo manages developing and executing human resource strategy in support of the overall business plan and direction of the company, specifically in the areas of succession planning, talent management, organizational & performance management, and training & development. He and his Department of Culture and Talent team have stepped up to the plate in an industry where specialty experience and attention to detail are vital.
Jordan Leichty
Director of Operations
Growing up on a family farm in Iowa, Jordan has always known the benefits farmers offer America. As Director of Operations, Jordan ensures that all of the digesters, gensets and various equipment entrusted to his department stay up and running at peak performance. He is also our lead Carbon Credits manager and go-to for all emissions offsets questions. Replacement parts, cows numbers, and carbon credits are all in a day's work for him. He consistently interacts directly with manufacturers, dealers, and utilities around the country - executing all the necessary parts of operating anaerobic methane digesters spread throughout our growing market.
David Sparling
Regional Operations Director
David serves as our Regional Operations Director and has been invaluable to our company. With previous experience from management roles in past jobs, he has settled in nicely as the head of all regional operations. If he was not at work, his ideal day would be traveling up a mountain with his family, mountain biking the whole way down, and sipping on some craft beer at dinner.
Christianna Maas
Chief of Staff
As our Chief of Staff, Christianna assists the CEO & CPO to support the executives and directors in their roles. She leads in our appreciation of staff and assists with leading the strategic planning across the organization.
Stephen Hatley
Chief Financial Officer
Stephen has been taking care of the company finances since 2010 when the California branch began. He has over 15 years experience in financial administration and office management. He is involved with grant writing, tax exemptions, systems development, and other detailed oriented tasks. He also enjoys volleyball, board games, and long conversations.
Nathan Nisley
Director of Project Management
Nathan comes to the California renewable energy market by way of Kansas. Fascinated by energy, machines, and industrial automation, he thrives at overseeing and executing the development phase of our projects. Electrical interconnection, project design, and permitting are a few of the worlds that he is immersed in. Nathan is also an expert on coffee, millennials, and the metric system.
Anna Reville
Permit Management Supervisor
Anna leads the Permitting Section of MEW. She has traveled all over the country working on organic vegetable farms and raising animals, and currently has a small hobby farm with goats, chickens, and lots of fresh produce. She is also a proud new mother to a beautiful baby girl! Anna currently oversees the permitting, environmental mitigation measures, and agency compliance efforts of all the projects in the development phase of MEW. In dealing with various agencies, she works by the motto, “We will either find a way, or make one!”
I’m passionate about taking waste and making it into something useful. It’s just such a great picture of what humans are called to do. Daryl Maas
Maas Energy Works specializes in developing, owning, and operating anaerobic manure digesters.
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