Prairie Engineering completed their first geothermal project in 1983 and have completed over 100 successful geothermal
projects to date. Notable projects include the Grand International Inn, YMCA, Zion Lutheran Church, and Washington School
in Minot; the Bank of North Dakota and Workforce Safety and Insurance Building in Bismarck; and the Rough Rider Motel
in Medora. The WSI Building achieved the Energy Star "Silver" rating for energy consumption. Prairie Engineering, P.C.
completed the technical portion of the successful grant application that funded the Fort Berthold Community College
geothermal retrofit project.
Grand International Inn Geothermal Conversion
Minot, North Dakota
The International Inn had a conventional heating and air
conditioning system. 168 geothermal wells were
installed. The initial retrofit utilized water-to-water heat
pumps to interface with the existing HVAC system. The
second phase involved the installation of extended range
geothermal heat pumps to serve the Convention Center
and Reflections meeting room. Water-to-water heat
pumps were utilized to heat the main pool, spa, and
domestic water heating for the laundry and south tower.
Construction was completed in 2008.
Fort Berthold Community College
Geothermal Conversion
New Town, North Dakota
Lon Drevecky assisted Kyle Patterson Ed.D., M.P.H.
Director of Research and Development with the
successful grant application that funded this project. This
project came within budget and was be complete four
months ahead of schedule in 2010. 126 wells were
drilled in two remote well fields. Multi-stack extended
range water-to-water heat pumps and a mix of extended
range water-to-water and water-to-air heat pumps were
utilized.
Parshall Elementary School
Geothermal Conversion
Parshall , North Dakota
This project was a complete retrofit of the current HVAC
system. There were so many problems with the existing
system that we replaced the mechanical system 100%. The
project featured air-to-air heat exchangers for ventilation
heat recovery, extended range water-to-air heat pumps
and sixty 200 foot geothermal wells.
MAFB 168 Room Dormitory
Minot Air Force Base, North Dakota
This is a design build project. Prairie Engineering
provided the mechanical design on this project. Extended
range stacked water-to-air heat pumps were used for
this 168 room dormitory. Air-to-air heat exchangers
reduced ventilation loads. Domestic water preheat via
geothermal will be used. (130) 200 foot deep wells were
utilized. The well field was located 2 blocks from the
building. This design will be used as the prototype for
future geothermal dormitories constructed at Northern
Tier Air Force Bases.
MAFB Renovate Dorms 205 & 207
Minot Air Force Base, North Dakota
We just finished the design work for the retrofit of two
dormitories at Minot Air Force Base. The new HVAC
system will feature air-to-air heat recovery and extended
range geothermal heat pumps. This project is currently
under construction. Each dormitory will utilize (40) 200
foot deep wells as its heating/cooling sink.
Minot Family YMCA Addition
Minot, North Dakota
Multi-stack centralized water-to-water heat pump was
utilized for Phase II of the Minot YMCA. This unit
provides chilled water for summer air conditioning,
while simultaneously providing hot water for domestic
water heating. The unit provides warm water for the
air-to-air heat exchanger ventilation system and radiant
floor heat during the winter season.