About Us

Renewable energy while enriching farms, forests, and the environment

Using innovative and leading technologies, Yosemite Clean Energy transforms farm and forest wood waste into renewable, zero-emissions hydrogen for the transportation sector.

The Yosemite Clean Energy Advantage

Lower capital costs

Dual-fluidized bed gasification is a proven technology that reduces the need for an Air Separation unit to provide oxygen, resulting in higher system efficiency.

Lower operating costs

No tonnage oxygen is required. No outside energy, like Natural Gas, is used to run the system.

Feedstock flexibility

No complex feedstock preparation required and is relatively feedstock agnostic.


Current scales from 10–100 MWt, and potentially up to 200 MWt

Multi-revenue streams

Hydrogen, RNG, Credits and Heat Sales

Low carbon intensity

Low CI, and with CCS the renewable hydrogen, can be a negative carbon fuel

Current Yosemite Projects

Kettleman City, California

Hydrogen Plant #1, located in Kettleman City, is currently under front end load engineering and design phase two.

This project will produce an estimated 14.5 MT hydrogen per day to Interstate-5 trucking and passenger vehicles. Our Farmer Co-op business model makes the wood suppliers the owners of this plant. We are estimated to utilize approximately 100,000 Bone Dry Tons of biomass per year.

Site plans are underway. Discussions with farmers in Fresno and Kings Counties are welcomed.

Groundbreaking, December 2020

Auberry, California

Auberry, a former lumber town in California, was hammered with the Western Pine Beetle epidemic that has ravaged the Sierra National Forest over the past five years. The pest has killed over 140 million pine trees in the Sierras and more than 30 million trees in the Auberry region. 

Yosemite Clean Energy has been working with the Sierra Resource Conservation District, an organization stewarding the forests in the area. SRCD is a partner and supports the development of the Aubery plant. In addition to hydrogen production, this site will include a small Fischer-Tropsch demonstration system to provide FT liquids for Bio-Jet fuel production. The pre-engineering phase is slated to begin in 2020.

Groundbreaking, September 2021

Grass Valley, California

For the past several years, Yosemite Clean Energy has been working with the Nevada County Biomass Task Force to develop a 10 MT hydrogen biomass plant near Grass Valley, California. 

We have been collaborating with local and state agencies to put this project into the detailed engineering phase by late 2020.

Groundbreaking, April 2021

Yosemite Clean Energy LLC will be project developer of all three plant facilities, and through our consortium, we will design, build, and commission the plants by using the dual-bed gasification technology from Repotec (Aichernig Engineering & TU Wien)

Scale of Projects

Green  hydrogen — processing approximately  50,000–100,000 bone dry tons of biomass per year

Producing 14,500 kg/day of hydrogen

1 plant will supply = 250 fuel cell HDV

Or up to 450–500 fuel-cell buses per day

Meet the Yosemite Team

Robert Jackson

Bus. Development & Managing Member

Tom Hobby

President &. Managing Member

Loren K. Dubberke

Impact & Dev. Managing Member

Zaki Kabir

Chief Technology Officer

Michael Zahradnik

Senior Project Manager

Jacob Todd

Sales & Marketing Manager

John Heywood

Finance & Real Estate

Board of Advisors

Dean Witter III

Becky Witter

Zakiul Kabir

Strategic Partners


Fluor Enterprises (FLR), is a global Fortune 500 company and has been engaged by Yosemite as Owner’s Engineer and will be the lead for Yosemite’s project engineering oversite and support for project success. Fluor is a global leader in gasification know-how. They have expertise in a broad cross-section of supporting technologies, including gas treating, sulfur recovery, carbon dioxide compression, combined-cycle power generation, and product synthesis. The integration of these technologies into efficient IGCC plants and energy complexes is one of Fluor’s key strengths.

Fluor has expertise and depth in gasification and supporting technologies with a comprehensive FEED, engineering, procurement, construction, and maintenance services portfolio. They have an impressive proven track record executing major energy projects. Fluor will work with our technology providers and EPCs to guide Yosemite Clean to develop our plants.


REPOTEC (Aichernig Engineering- GmbH), led by principal Christian Aichernig, has been developing commercial applications of the dual-fluidized bed gasification technology for over 20 years. The company has successfully commissioned over ten projects globally, and Yosemite Clean has the exclusive rights to develop Biomass projects in the USA under a licensing agreement. REPOTEC has significant knowledge in the sophisticated application of biomass gasification and is experts in dual-bed gasifiers and syngas cleaning. With the experience and expertise of REPOTEC, Yosemite Clean Energy will be able to produce Green Hydrogen, RNG and possible Heat and Power additional product streams. 

With a proven track record and a simpler and more effective and efficient design and total inputs and outputs, using their experience for developing the Yosemite project will be one of the keys to success.

MMR Power Solutions, LLC

MMR Power Solutions is one of the key companies to provide power and operate distributed power for the Yosemite Clean Bioenergy fuels plants. MMR will also be a partner for plant operations and maintenance. MMR has an in-house team of an experienced team of estimators, engineers, project managers, technicians, construction, and maintenance personnel. This partnership ultimately alleviates the need to rely on the utility alone for crucial energy supply, reducing the risk of market exposure by having more internal control over vital energy supply. From gas engine and turbine plants to renewable power generation facilities—and hybrid power plants using a combination of technologies, including energy storage—MMR has the technical expertise, workforce, and resources to support Yosemite Clean Energy’s project goals and objectives.

Key Consultants

BioStewards Inc.

Forest Biomass Assessment and Procurement 

Biostewards has been a leader in forest fuels management research, biomass assessments, feasibility studies, and consulting to forest companies, government, NGOs, and First Nation/Tribal groups in Canada, and the USA. With unique methods for biometric analyses, the company will assist Yosemite in biomass procurement and management of forest resources.

The company has analyzed and reviewed over five million acres of timberlands in North America. It has been instrumental in advocating better forest management for multiple revenue streams from traditional forestry, non-timber forest products, and bioenergy development.

Provost & Pritchard Consulting Group

Consulting Site  Civil Engineers

Provost and Pritchard, established in 1968, are a California Civil and Agricultural Engineering Company with over 150 engineers throughout the San Joaquin and Sacramento Valleys. They are experts in obtaining project permitting, California CEQA compliance, Regional Air Board, and Land Development support. They have also assisted several forest biomass projects over the years and will collaborate with the plant and site development efforts.

Graham Noyes

Project Management Consultant

Graham Noyes leads up Noyes Law Corporation (NLC). His practice is devoted to fuel and carbon law, including California’s Low Carbon Fuel Standard (LCFS), the federal Renewable Fuel Standard, and CAFE and GHG vehicle crediting.  Graham represents fuel producers, project developers, and fuel distributors on policy campaigns, rule makings,  and regulatory and credit generation strategies.  Clients include industry leaders in sustainable aviation fuel, Fischer-Tropsch fuels, biobutanol, petroleum free E85, air to fuels, and renewable hydrogen.  Graham is also the Executive Director of the Low Carbon Fuels Coalition (LCFC), a technology neutral business association dedicated to the expansion of low carbon fuel policies.


Hydrogen Business Council

Low Carbon Fuel Coalition