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Certified Geo-Exchange Designer (CGD) Workshop Series

Providence’s Buller Centre for Business is offering a 10-week professional course on designing geothermal systems.

  • Mondays
  • 5:30 – 7:30 PM
  • 26 Sep – 5 Dec 2011
  • Participants can attend sessions either in-person on the Providence campus, or through Providence’s eProv interactive distance education system.

Ed Lorhenz, B.E.S., CGD of Geo-Xergy Systems is teaching a 10-session workshop series on designing geo-exchange (geothermal) systems.

This workshop series is presented in co-operation with the Manitoba Geothermal Energy Alliance (MGEA). It is authorized by the International Ground Source Heat Pump Association (IGSHPA) and the Association for Energy Engineers (AEE). Completion of the series allows participants to write the certification exam for Certified GeoExchange Designer (CGD®) accreditation.


Sessions run every Monday from September 26 to December 5, 2011 (except for Thanksgiving Monday, October 10).
This workshop series is designed for engineers and contractors involved in designing and/or installing geothermal heating and cooling systems. Experience in commercial HVAC system design or installation is strongly recommended.
The series is built around a design process that is used to optimize the design of a geothermal system, help you develop a quality assurance/quality control program to ensure the system is installed as designed, and commissioned to work as designed.

Full overview of this workshop series.

Ed Lohrenz has 30 years experience in the geothermal industry, across Canada, in the U.S., and internationally.
Recent projects include the Steinbach Credit Union building on Lagimodiere Boulevard in Winnipeg, Manitoba, and the IKEA store in Centennial, Colorado. The Credit Union project is the largest privately-funded geothermal project in Manitoba (at least to date). The IKEA project is notable both for its size (415,000 square feet of retail space) and for the integration of the geothermal system with other energy-saving innovations.

Ed has developed training courses for the International Ground Source Heat Pump Association (IGSHPA) and the Canadian GeoExchange Coalition (CGC). He has conducted workshops in five countries.

The total cost for this workshop series is $1,950 Canadian. This cost includes:

  • The purchase of $600 in materials from the AEE including written materials, a CD-ROM, and access to their online webinar. These are all the materials needed for participants considering writing the AEE exam for CGD designation.
  • Access for the final six weeks of the course to GLD (Ground-Loop Design) Software. This is the industry-standard design software, and retails for $3,500.
  • The cost of using the eProv interactive distance education technology.
  • 5% GST.*

Participants can register and pay online.

For more information on the course content, contact Ed Lohrenz directly. For information on the workshop sessions, payment, and taking the course through eProv interactive distance education, contact us at the Buller Centre.



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Otterburne, Manitoba, Canada, R0A 1G0
Phone: (204) 433-7488 or (800) 668-7768
Fax: (204) 433-7158
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