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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 heat pump design solutions for commercial facilities.

Geothermal heat pumps are an exciting new alternative to conventional furnaces and air-conditioners that uses the earth's temperature as a heating/cooling source. Heat pumps are available for residential and commercial spaces alike and have a variety of advantages, including:

  • Increased return on your building investment
  • Lower lifecycle costs
  • Reduced maintenance and operating costs
  • Takes up less space in your building than a furnace
  • Individualized temperature control
  • Improved flexibility of installation
  • Improved sustainability and lower carbon footprint

OPPD Services for Geothermal Systems

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

OPPD Ground Loop Heat Exchanger (GLHE) Program

OPPD provides many well-field design services that help building 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 services
  • Complete thermal conductivity testing services
  • Complete GLHE design
  • Coordination with the building architect and mechanical/electrical engineers
  • Construction drawings and specifications
  • Contract administration
  • Construction management services

When contracting with OPPD, your business can expect the following for improved results:

  • Review of building architect and engineer’s plans to ensure alignment with project goals
  • Computerized modeling and calculations of HVAC system sizing and energy performance to the greatest extent possible (preferably done in collaboration with building architect and engineer)
  • Over 25 years of in-house GLHE engineering, procurement and construction management experience to provide:
    • Improved efficiency of the GLHE
    • Reduce change orders with accurate design
    • Ensure the most economical overall installation of the geothermal heat pump system

OPPD Geothermal Conductivity Testing Services

Geothermal conductivity testing provides the following important design information:

  • Quantified measurement of how well the soil transfers heat – the soil’s thermal conductivity and thermal diffusivity values
  • Estimated measurement of the undisturbed deep earth temperature
  • Report summarizing OPPD thermal conductivity test findings and common design recommendations


For more information, please contact your Senior Account Executive, Account Executive or email