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GLHE Turnkey Solutions
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GLHE Turnkey Solutions

Heat Pumps Efficiently Condition Your Building

OPPD offers a full spectrum of turnkey geothermal and water-source heat pump design solutions for commercial facilities. 

Fee-Based Services for Geothermal Systems

  • Turnkey installation of Ground-Loop Heat Exchanger (GLHE)
  • Geothermal conductivity testing for critical design information in sizing GLHE
  • Engineering design of GLHE
  • Procurement of GLHE contractors
  • Construction management for installation of GLHE

Geothermal Heat Pump (GHP) System Benefits

A GHP system uses the earth as the source for heating and cooling. In addition, a GHP system offers:

  • Increased return on your building investment
  • Lower lifecycle costs
  • Reduced maintenance and operating costs
  • Space savings
  • Individualized temperature control
  • Improved flexibility of installation 

Ground Loop Heat Exchanger (GLHE) Program

OPPD provides many well field design services that help builders and owners minimize operating costs, while maximizing return on investment.  

Engineering Design Services include, but are not limited to:

  • Test-loop specifications/guidelines
  • Test-loop contracting
  • Thermal conductivity testing
  • Coordination with the building architect and mechanical engineer
  • Construction drawings and specifications
  • Contract administration
  • Construction management services

Geothermal Conductivity Testing

Geothermal conductivity testing: 1) measures how the soil transfers heat, 2) prevents uncertainty in surrounding soil properties, and 3) helps avoid under sizing of geothermal loop heat exchangers. The test will:

  • Calculate the number and depth of wells needed
  • Verify correct sizing of the geothermal loop heat exchanger (GLHE)
  • Improve efficiency of the GLHE
  • More accurately measure preconstruction costs
  • Reduce change orders as the system has more accurate design
  • Ensure the most economical installation of the geothermal heat pump system


For more information, please call 531-226-3536 or email