Energy Center of Wisconsin | Go hybrid with HyGCHP
  Energy Center of Wisconsin  

Thursday, Apr 17, 2014



  1. See Getting Started PDF
  2. Download 11MB zip file containing "Getting Started" and the application:download zip file
  3. Install the .exe file



Hybrid geothermal systems: less is more, presented by Scott Hackel. Originally broadcast Sept 29, 2011.


Scott Hackel
Scott Hackel
PE, LEED AP, Senior Energy Engineer

what we do :: BUILDINGS

Go hybrid with HyGCHP

HyGCHP modeling tool: Simplified performance modeling of ground-source heat pump systems, including several variations of hybrid system. Developed by Energy Center of Wisconsin, University of Wisconsin-Madison College of Engineering's Solar Energy Lab, sponsored by ASHRAE and the U.S. Department of Energy


Mouse over image to view video controls. (Total run time: 7 min 10 sec)

Reduce the cost of implementing geothermal heat pump systems on your building projects by going hybrid. A hybrid geothermal heat pump system can lower your costs by reducing the peak capacity of your ground loop and allowing you to install a smaller, less expensive ground heat exchanger. HyGCHP is a software module that can help you analyze this option!

An easy-to-use, but sophisticated method of analyzing various hybrid geothermal configurations is one piece that has been missing from the world of geothermal analysis tools. With our free modeling tool, HyGCHP (Hybrid Ground-Coupled Heat Pumps) you can use the powerful TRNSYS-based ground heat exchanger module1 to investigate several configurations of geothermal system, including both conventional geothermal systems and various hybrid options, from heating dominated to cooling dominated systems.

Use HyGCHP to:

  • Determine how much money a building owner can save by choosing a hybrid geothermal system.
  • Select optimal sizes for the equipment in a hybrid system.
  • Compare different hybrid geothermal approaches in terms of energy and economics for a given building project.
  • Analyze the effects of different control strategies for your geothermal or hybrid system.

1 The ground heat exchanger model in TRNSYS is based on the well-accepted and validated Duct Storage (DST) model, originally created by Hellstrom.

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