Novel Energy Conversion Equipment for Low Temperature Geothermal Resources Geothermal Project

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Last modified on July 22, 2011.

Project Title Novel Energy Conversion Equipment for Low Temperature Geothermal Resources
Project Type / Topic 1 Recovery Act: Geothermal Technologies Program
Project Type / Topic 2 Geothermal Energy Production from Low Temperature Resources, Coproduced Fluids from Oil and Gas Wells, and Geopressured Resources
Project Type / Topic 3 Low Temperature Resources
Project Description Using mass-produced chiller equipment for “reverse refrigeration” to generate electricity:

This approach allows Johnson Controls to take advantage of the economies of scale and manufacturing experience gained from current products while minimizing performance risks. Process efficiencies will be increased over the current state of the art in two ways: better working fluids and improved cycle heat management.

State Oregon
Objectives Develop equipment that generates electricity from low temperature geothermal resources at a cost at least 20% below that of the currently available technology.
Awardees (Company / Institution) Johnson Controls, Inc.

Partner 1 Oregon Institute of Technology
Partner 2 Barber-Nichols, Inc.

Funding Opportunity Announcement DE-FOA-0000109
DOE Funding Level (total award amount) $1,047,714.00
Awardee Cost Share $1,047,714.00
Total Project Cost $2,095,428.00

Principal Investigator(s) Jay Kohler, Engineering Manager, Johnson Controls

Targets / Milestones -Identify the optimal technology approach by comparing different thermodynamic cycles to assess which working fluid yields the best results economically and environmentally, given our existing chiller equipment portfolio

-Optimize the conversion efficiencies of the selected thermodynamic cycle for low temperature resources

Location of Project Klamath Falls, OR

Impacts Building on existing site and district heating capability with goood economics and a high potential impact in needy community.
Funding Source American Recovery and Reinvestment Act of 2009
References EERE Geothermal Technologies Programs[1]


  1. EERE Geothermal Technologies Programs