Lisa Meline, P.E.
Principal Mechanical Engineer

Lisa Meline is the firm’s owner and principal engineer. Her background includes experience with NASA Ames as a facilities manager and Apple Computer as an engineering manager. Since founding Meline Engineering in 1995, she has become recognized as an authority on renewable energy systems, particularly geothermal heat pump systems. Ms. Meline speaks regularly on the topic of sustainable energy systems at industry events.

Ms. Meline is a licensed professional engineer and Geoexchange Designer by the Association of Energy Engineers. She is past Chair of ASHRAE TC6.8 Geothermal Heat Pump and Energy Recovery Applications, a voting member of IGSHPA’s Standards Committee and holds memberships with ASME, ASHRAE, GHPC and IGSHPA. Ms. Meline is an ASME Fellow and is a recipient of ASME’s Distinguished Service Award.


Master of Science, Mechanical Engineering, 1996, California State University, Sacramento

Bachelor of Science, Mechanical Engineering, 1989, California State University, Sacramento

Associate of Science, 1985, American River College, Sacramento

Licenses & Certifications

California Professional Engineer’s License

Colorado Professional Engineer’s License

Nevada Professional Engineer’s License

Utah Professional Engineer’s License

Certified Geoexchange Designer


Meline, Lisa and Steve Kavanaugh, 2016, "Grounded in Reality" Engineered Systems, Vol. 33. No. 12 pp 28-35

Kavanaugh, Steve and Lisa Meline 2016, “Long Term Commercial GSHP Performance, Part 7:  Achieving Quality.” ASHRAE Journal 55 (2), pp. 26-32.

Meline, Lisa, 2013, “GHP Piping Systems.” ASHRAE Journal 55 (3), pp. 86-88.

Meline, Lisa, 2016 “Geothermal Design:  Code in Conflict?” Engineered Systems 33 (6), pp. 32-37.

Lisa Meline, P.E.

Speaking Engagements

IGSHPA 2017 Technical Conference and Expo, "Ground Loop in the Vineyard?," March 14, 2017 Denver, Colorado.

GeoConnected Lecture Series, "Burying Mistakes" presented via webinar February 16, 2017.

AGWT (American Ground Water Trust), California Geothermal Workshop – Ground Source Heat Pumps – Heating and Cooling, “How Ground Source Geothermal Systems Work,” Crowne Plaza Hotel Los Angeles, Commerce Casino, Commerce, CA March 31, 2016

2016 ASHRAE Winter Conference, “Ground Source Heat Pumps Get Bi-National Attention,” January 25, 2016, Orlando, Florida.

IGSHPA 2015 Technical Conference and Expo, "Geothermal Heat Pumps:  A Pathway to Zero Net Energy (ZNE) for Schools, Homes, and Businesses,” Thursday, October 8, 2015, Crowne Center, Kansas City, Missouri.

Seminar/Webinar: Creating Zero Net Energy Buildings with Off-the-Shelf Technologies, sponsored by California Geoexchange Organization and San Jose City College, “A Pathway to ZNE for Schools, Homes and Businesses,” April 23, 2015.

2014 ASHRAE Annual Conference, “Ground Source Heat Pumps State of the Art: Design, Performance and Research Track”, Seminar Chair for “Assessing a Project Site for Geothermal Heat Pump Applications”, Speaker for “Ground Source Systems Commissioning and Closeout: Unique Issues, Avoiding Fatal Flaws and Ensuring Client Satisfaction”, June 28-July 2, 2014, Seattle, Washington

AiCARR,”Design of Commercial Ground-Source Heat Pumps” MCE 2014, Milan, Italy, March 20, 2014

National Ground Water Association, “Women in Geosciences Webinar”, October 17, 2013

IGSHPA 2013, “SEERs vs. EERs:  Understanding the Difference Between Marketing and Performance Values,” October 9, 2013, Las Vegas, Nevada

Sacramento Municipal Utility District, “Introduction to Geothermal Heat Pump Systems”, September 19, 2013, Sacramento, California