HomeMy WebLinkAboutMV Library GSHP Evaluation R7 - FINALMendenhall Valley Library Geothermal Schematic Design Cost Estimate
AIRPORT & DPAC GSHP COST INFORMATION
DPAC Horizontal Piping 7272
DPAC Horizontal Piping Bid Cost 265,517$
DPAC Horizontal Piping Bid Cost/LF 36.51$
DPAC Bid + CO Cost/LF of borehole 12.81$
MENDENHALL VALLEY LIBRARY GEOTHERMAL LOOPFIELD DESIGN ASSUMPTIONS
Mendenhall Valley Library SF 20,600
Peak BTUH per SF 25
Total BTUH Peak Heat Load 515,000
LF Borehole Piping per BTUH 0.01359
LF Boreholes required at Dimond Park Library1 7,000
Number of 350' boreholes 20
Estimated length of Horizontal Piping 1,560
MENDENHALL VALLEY LIBRARY GSHP SYSTEM CONSTRUCTION COST ESTIMATE
Boreholes2 $89,670
--escalation 17.50% $15,692
Driller Mobilization2 $170,000
--escalation 17.50% $29,750
Horizontal Piping2 $56,959
--escalation 17.50% $9,968
Site Demolition & Earthwork $80,000
Heat Pump Infrastructure in Boiler Room $140,000
Construction Contingency $57,961
Estimated Construction Cost of MV Library GSHP System $650,000
MENDENHALL VALLEY LIBRARY GSHP SYSTEM PROJECT COST
Construction Cost of MV Library GSHP System $650,000
Design $55,000
Test Wells - Use DPAC well performance for design1 $0
Conductance Tests - Use DPAC well performance for design1 $0
Permits $5,000
CBJ Bidding Services $5,000
Consultant Construction Inspection Services $14,000
CBJ Project Management Services $28,000
Commissioning $10,500
Annual O&M Reporting to AEA $10,500
Project Contingency $47,000
Total Project Cost $825,000
Project Capital Cost $675,000
Project Development Cost $150,000
1 Assumes similar heat transfer conductance in soil as Dimond Park Aquatic Center
2 Cost based on Spring 2009 bid & construction results for DPAC Loop Fields
Printed: 9/18/2013 Page 1 of 1