Oak Ridge City Center Technology Demonstration Project Geothermal Project

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Last modified on July 22, 2011.

Project Title Oak Ridge City Center Technology Demonstration Project
Project Type / Topic 1 Recovery Act – Geothermal Technologies Program: Ground Source Heat Pumps
Project Type / Topic 2 Topic Area 1: Technology Demonstration Projects
Project Type / Topic 3 Phase I – Feasibility Study and Engineering Design

Phase II – Installation and Commissioning of Equipment Phase III – Operation, Data Collection, and Marketing

Project Description The redevelopment will deploy ground source heat pump (“GHP”) systems to ultimately provide approximately 1470 tons of heating and cooling capacity to retrofitted and newly-constructed buildings, with 630 tons of heating and cooling deployed in the project’s early phase. The design will utilize one or more dry fluid coolers, single- and variable-speed pumps, two-stage heat pumps with variable-speed fans and control boards for multi-stage operation during periods of low-load periods. Oak Ridge National Lab and CDH Energy will lead the design software validation study and design the data acquisition system, provide data gathering, analysis and reporting of system costs and performance benefits, installation techniques, commissioning and optimization. They will also produce the interim, annual and final reports on energy use, energy demand, operating and maintenance costs, pollutant emissions reduction, system and subcomponent performance. ORNL will also produce the marketing outreach materials to increase market awareness and broaden demand for hybrid GSHP performance.

The Principal Investigator will be David Thrash, an owner and the project’s redevelopment manager. Data gathering, analysis and reporting will be provided by Oak Ridge National Lab and CDH Energy. The redevelopment project will incorporate a combination of a bank loan and a Payment In Lieu of Taxes (PILOT) tax-increment financing (TIF) facility provided through the City of Oak Ridge’s Industrial Development Board. Once completed and re-tenanted, the Oak Ridge City Center project will produce approximately 1,345 jobs; 920 as a direct result and 425 as an indirect result, and the retention of approximately 600 jobs. The energy efficiency elements of the project will also result in lower operating costs for the retailers, enabling them to produce the same profitability under a reduced revenue scenario, resulting in the sustainability of the jobs created.

State Tennessee
Objectives Create a large-scale regional Technology Demonstration Project by redeveloping the Oak Ridge City Center (“ORCC”) a functionally-obsolete, partially vacant 660,000 SF enclosed shopping mall located on over 62-acres in the center of the City of Oak Ridge, Tennessee.
Awardees (Company / Institution) Oak Ridge City Center, LLC
Awardee Website http://oakridgecitycenter.com/
Partner 1 Oak Ridge National Lab
Partner 2 CDH Energy
Partner 3 City of Oak Ridge’s Industrial Development Board

Funding Opportunity Announcement DE-FOA-0000116
DOE Funding Level (total award amount) $5,000,000.00
Awardee Cost Share $8,206,663.00
Total Project Cost $13,206,663.00

Principal Investigator(s) David Thrash, Hard Oak, LLC

Targets / Milestones Overcome commercialization barriers to wide-scale commercial deployment of Ground Source Heat Pumps (GHP) through the following activities:

- Designing and installing a hybrid GHP technology which substantially lowers front costs at a modest penalty to energy efficiency over conventional vertical-bore non-hybrid GHP systems; - Designing and implementing data-collection processes and controls to 1) assess the energy use and performance of the hybrid GSHP system; 2) validating and refining the American Society of Heating, Refrigerating and Air Conditioning Engineers- (ASHRAE) sponsored, recently-developed non-proprietary GHP design software, and 3) developing a calibrated simulation models for retrofit and newly constructed buildings; - Providing annual reporting and final reporting and to developing marketing outreach materials for disseminate of that information to the market which will support the technology and ultimately increase commercial demand.

Location of Project Oak Ridge, TN

Impacts Innovative demonstration of hybrid GHP system to improve efficiency and reduces costs.
Funding Source American Recovery and Reinvestment Act of 2009
References EERE Geothermal Technologies Programs[1]


  1. EERE Geothermal Technologies Programs