NGWA publishes recommendations on geothermal heat pump systems

WESTERVILLE, Ohio — Aug. 27, 2015 — GHP system design and installation requires multidisciplinary expertise.


WESTERVILLE, Ohio — Aug. 27, 2015 — The National Ground Water Association (NGWA) Press released its newest title, Understanding Hydrogeology and Its Impact on Large-Scale Geothermal Heat Pump Systems, according to a press release.

The guidelines provide a reference for those involved in large-scale geothermal heat pump (GHP) planning or site assessment, noted the release. The work is written to "bridge the gap between existing HVAC literature and [GHP] industry training."

Industry experts Nina Baird, Ph.D., of Carnegie Mellon University and John Rhyner, PG, of P.W. Grosser Consulting Inc. edited the title, reported the release. GHP system design and installation requires multidisciplinary expertise to evaluate multiple factors include geology, climate, meteorology and hydrogeology. The book covers several topics, such as:

  • Fundamentals of large-scale systems
  • Site and hydrogeologic considerations
  • Site constraints
  • Site assessment and ground coupling options
  • Drilling
  • Regulations and requirements
  • Professional qualifications for GHP system design and installation
  • Characteristics of a successful GHP product
  • Common causes of GHP shortfalls

"These guidelines present an approach to site assessment to help ensure the installation of an effective and long-term GHX installation that meets regulatory requirements, has an acceptable financial rate of return, prevents groundwater contamination, protects drinking water sources and public health, and protects the owners’ [investments]," said Todd Giddings, Ph.D., president of Todd Giddings & Associates Inc., in the release.

Click here to read the entire release.

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