District Wide Geothermal Heating Conversion Blaine County School District Geothermal Project

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Last modified on July 22, 2011.

Project Title District Wide Geothermal Heating Conversion Blaine County School District
Project Type / Topic 1 Recovery Act – Geothermal Technologies Program: Ground Source Heat Pumps
Project Type / Topic 2 Topic Area 1: Technology Demonstration Projects

Project Description This project represents the creation of more than 173 jobs in rural Idaho. The project will use local contractors and resources and pay Davis-Bacon wages representing a strong investment in the local economy of rural Idaho. The project will also supply manufacturing jobs associated with the ground source heat pump manufacturers by placing an order for roughly 350 ground source heat pumps.
State Idaho
Objectives Reduce the overall operating costs of the Blaine County School District facilities by utilizing the available natural resources of the area while stimulating the local economy by providing a showcase project for qualified local employers.
Awardees (Company / Institution) Blaine County School District #61

Awardee Website http://www.blaineschools.org/











Funding Opportunity Announcement DE-FOA-0000116

DOE Funding Level (total award amount) $4,000,000.00
Awardee Cost Share $11,585,773.00
Total Project Cost $15,585,773.00



Principal Investigator(s) Michael S. Johnson, PE


Targets / Milestones The project will include the development of production and injection wells as follows:


- Two (2) production wells and one (1) injection wells will be dedicated to cooling operations serving Carey High School, Carey Gym, and Carey Elementary School. Two (2) production wells and one (1) injection well will be dedicated heating water wells serving the same three facilities.
- One (1) production well and one (1) injection well for Bellevue Elementary School.
- One (1) production well and one (1) injection well for Woodside Elementary School.
- Four (4) production wells and two (2) injection wells for Wood River Middle School.
- Eight (8) production wells and two (2) injection wells serving Wood River High School, Community Campus Building, and Support Services Building.
- Replacement of the existing heating, ventilation, and air conditioning systems with new systems that utilize ground source heat pumps. Two design strategies will be implemented:
- Central plant heating and cooling water-to-water heat pumps will be installed serving a variable air volume heating, ventilation, and air conditioning system for Carey High School, Carey Gym, Carey Elementary, and Bellevue Elementary. The geothermal well water will be separated from the building heating and cooling water by a plate and frame heat exchanger. Condensing type boilers will be installed to provide back up heating capabilities.
- The existing ground source heat pumps at Wood River Middle School, Wood River High School, Community Campus Building, and Support Services Building will be replaced with new high efficiency ground source heat pumps. The existing boilers will be replaced with condensing type boilers and the existing cooling towers will be removed. The geothermal well water will be separated from the building heat pump condensing loop by plate and frame heat exchangers.
- The existing ground source heat pumps at Woodside Elementary will remain. The geothermal well water will be separated from the building heat pump condensing loop by a plate and frame heat exchanger.
- A complete direct digital control system will optimize the central plant, air-handling units, unitary equipment, and production wells based on load, water temperatures, and outdoor air temperatures.





Location of Project Hailey, ID, Carey, ID, Bellevue, ID
, 43.3076829°, -113.9447521°, 43.4635179°, -114.2605998°



Impacts This is a very innovative application of GHP technology, with a combination of direct-use geothermal heating and GHP systems to provide cooling. Strong potential for replicability in region.
Funding Source American Recovery and Reinvestment Act of 2009

References EERE Geothermal Technologies Programs[1]

References

  1. EERE Geothermal Technologies Programs