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Data Analysis from Ground Source Heat Pump Demonstration Projects

Lead Performer: Oak Ridge National Laboratory - Oak Ridge, TN
Partners:
-- CDH Energy - Cazenovia, NY
-- University of Tennessee - Knoxville, TN
-- Cedarville Schools - Cedarville, AR (ARRA grantee)
-- Flathead Electric Cooperative - Kalispell, MT (ARRA grantee)
-- University at Albany - Albany, NY (ARRA grantee)
-- City of Raleigh, NC (ARRA grantee)
-- Indiana Institute of Technology (ARRA grantee)
-- Oakland University - Rochester, MI (ARRA grantee)
DOE Funding: $450,000
Cost Share: N/A
Project Term: Oct. 2012 - Sept. 2016

Project Objective

A recent assessment indicates that residential ground source heat pump (GSHP) energy savings have a technical potential of 4.2 quads per year. With improved design, reduced cost, and increased public awareness and trust, it is expected that GSHP systems will capture 10% of the target market segments by 2030. However, a lack of public awareness and trust is preventing rapid deployment of GSHPs. This project will analyze the costs and benefits of GSHP demonstration projects funded by the American Recovery and Reinvestment Act. The analysis could identify good and bad design, installation, and operation practices, as well as lessons learned and best practices. This information is also essential for determining the economic viability of investments in GSHP systems, which is vital for bringing in third-party financing to mitigate the systems’ high initial cost.

Project Impact

Previous studies reported that GSHP systems use 20–40% less energy compared with conventional HVAC systems in K–12 schools and institutional/ governmental buildings. Regions with robust GSHP design and installation infrastructures demonstrate that GSHP systems can be competitive on first cost in new construction and in retrofit applications versus conventional systems in these applications . Case studies will foster greater project activity in more parts of the country, expanding the areas where robust GSHP design and installation infrastructures exist. With improved design, reduced cost, and increased public awareness and trust, it is expected that GSHP systems will capture at least 10% of the target market segments by 2030. ORNL has previously estimated the economic savings potential of GSHPs at 3.4 to 3.9 quads annually (60% residential and 40% commercial).

Contacts

DOE Technology Manager: Bahman Habibzadeh
Performer: Xiaobing Liu, Oak Ridge National Laboratory