Officers / Board Of Directors


Bill Martin, President, CaliforniaGeo          Based in:   Quincy, California    Affiliation:   MartinEnergetics

Bill Martin self-studied residential energy conservation and built his first heat pump-equipped home in the mid-70s.  By 1980, he had promoted energy conservation for two years in Plumas, Lassen, and Sierra counties on a grant from the California Energy Commission and four regional electric utilities.  He was certified by the California Energy Commission in 1981 to train energy auditors and began selling and installing solar thermal systems.  He developed related course offerings at Feather River College and trained contractors in Title-24 content, statewide.  Efficiency in residential energy design is his passion; ground source heat pumps are his favorite technology, and his current house was built based on both.  He is an IGSHPA-Certified Ground Source Heat Pump Installer.  Bill joined the CaliforniaGeo Board in 2013 and his current term will end on 12/31/24.


Mark Metzner, Vice President, CaliforniaGeo 

Based in:  Surrey, BC, Canada     Affiliation:  Green Storm GeoExchange Consulting / Aecon Group

Our only (current) director operating in Canada, Mark joined the CaliforniaGeo Board in 2022.  He is the Business Development Manager at the Aecon Group.  His leadership in the development and updating of  the ANSI/CSA/IGSHPA C448 Standard is something that will serve the geo industry better across all of North America and CaliforniaGeo has plans to anchor much of its future technical training around 448. Mark’s current term will end on 12/31/24.


Kent Penning, Secretary, CaliforniaGeo    Based in:  San Juan Bautista, California  

Affiliation:  Anzar Consulting & Design, LLC

Kent has served the HVACR industry since 1981, owning and operating a contracting business for 29+ years around water source heat pumps. He has fixed, designed, installed and project managed many residential and commercial geo projects, and for 15 years was an adjunct instructor in the HVACR program at San Jose City College.  Kent wants to serve the growth of our industry through utility and regulatory reforms.  His current term will end on 12/31/25.


Joe Parsons

Joe Parsons, Treasurer, CaliforniaGeo     Based in:  Oklahoma City, Oklahoma     Affiliation: ClimateMaster Inc.

Joe was previously the Senior Product Manager and will now serve as the Senior Marketing Sustainability Manager for ClimateMaster’s Climate Control Group, headquartered in Oklahoma City.  He’ll work toward leveraging the Inflation Reduction Act for the stimulation of our industry.  His 40-year career in this industry includes service as President and CEO of EarthLinked Technologies, as Director for the Geothermal Exchange Organization, and as a founding member of New York Geo.  He is a veteran of service for AHRI and ASHRAE and is currently a voting member of the Canadian Standards Association.   Joe joined the CaliforniaGeo Board in 2014 and his current term will end on 12/31/24.


DIRECTORS  =======================================

Tim Wright, Director, CaliforniaGeo     Based in:  Ringgold, Georgia     Affiliation:  Enertech Global LLC

Tim Wright is the Chief Strategy Officer at Enertech Global. With over 30 years of management and energy efficiency experience, Tim oversees all customer facing departments at Enertech. He serves on the board of directors for California Geothermal Heat Pump Association, Vice Chairman of the International Ground Source Heat Pump Association, and the Virginia Geothermal Heat Pump Association. Tim is passionate about customer interaction and building new relationships in the industry. Tim is active in his local community, and he and his wife enjoy time with their two daughters, a son-in-law, and their first grandson.  Tim joined the CaliforniaGeo Board in 2014 and his current term will end on 12/31/23.


Terry ProfferTerry Proffer, Director, CaliforniaGeo      Based in:  Wheat Ridge, Colorado     Affiliation:  Major Geothermal

Major Geothermal (MG), formed in 2001, is a specialized ground source heat pump system design, forensics and controls firm, based in Wheat Ridge, Colorado (Denver area).  Our key personnel have over 160 cumulative years of mechanical experience.  Terry diagnoses and specifies repairs to commercial geo systems and often serves as a third party design review and construction oversight professional.  He was the first person we’ve heard describe his job as “geo janitorial,” where his expertise fixes problems in geo systems and controls for the benefit of customers.  MG designs and consults on projects nationally and worldwide.  Commercial projects includes government, institutional and private facilities, from small specialized applications of less than 1,000 ft², to multipurpose facility projects of over 500,000 ft².  Terry joined the Board in 2016 and his current term will end on 12/31/23.



Terry Shewchuk, Director, CaliforniaGeo  Based in:  Palo Alto, California     Affiliation:  Pitcher Services, LLC

Terry Shewchuk serves as the Operations Manager for Pitcher Services, LLC, where he has been employed since 2001.  Pitcher originated in 1933 and invented the Pitcher Barrel, which is used in the geotechnical industry throughout the world.  Pitcher Drilling transitioned into the geotech industry in the 60’s.  Pitcher Drilling was purchased by John Gregg in 2001. With John’s help the drill fleet has been re-tooled allowing Pitcher to provide clients multiple sampling or testing methods including geothermal loop installations.  From the company’s headquarters in East Palo Alto, Terry manages the logistics and scheduling for a drilling fleet of six truck mount and two track mount drills with a full complement of support trucks.  He is responsible for the day to day operations of 20 office and field staff.  Terry joined the CaliforniaGeo Board in 2013 and his current term will end on 12/31/23.


Lisa Meline, Director, CaliforniaGeo  Based in:  Sacramento, California    Affiliation:  Meline Engineering Corporation

Lisa Meline is the principal engineer/owner of Meline Engineering Corp., providing consulting, construction support and technical training services. Current assignments include chairing three task forces for the ANSI/CSA/IGSHPA C448 revision:  surface water, wastewater energy transfer, and district geothermal systems.   She’s also on the technical advisory committee for the State of California DWR revision to Bulletin 74, and is a founding and returning board member who became CG’s first Lifetime Member in 2017.  Her current term will end on 12/31/25.


Chris Coley, Director, CaliforniaGeo Based in:  Preston, Washington    Affiliation:  Geotility

Chris Coley has been actively installing geothermal heating and cooling systems for over 13 years.  His experience is broad, ranging from field services, estimating, and project management, to handling these for both Geotility Corp and Orca Energy.  He is responsible for all staff in the Pacific Northwest region and leverages his management experience to maintain the highest quality levels for the companies he serves.  Geotility’s website features one of their premier projects, certain to advance our geo industry in California—The George Lucas Museum for the Arts in downtown Los Angeles.  His current term will end on 12/31/25.



PAST DIRECTORS  =======================================

Todd Bradford, San Ramon, California     







Kevin Oxley, Etna, California








Cary Smith, South Jordan, Utah






Bruce Sanguinetti, Genoa, Nevada


Neil Anderson, Stockton, California

Sean Dillon, North Bend, Washington

Lisa Meline, Sacramento, California

Mark Stimson, Santa Barbara, California

Beth Morelli, Santa Rosa, California

Susan Nichol, San Jose, California

Dennis Murphy, Redwood City, California





Paul Bony, Paonia, Colorado

Phil Henry, Grass Valley, California

Ken Brew, Billings, Montana

Dan Bernstein, Pleasanton, California