🌍 Closed-Loop Vertical Boreholes (300-500 Ft Deep), 150-200 Bore Ft/Ton of Heat Pump

Commercial Geothermal Borehole Calculator

Size commercial ground-source heat pump (GSHP) vertical borefields: calculate total drilling footage requirements (150 to 220 borehole feet per ton of heating/cooling load), 300-500 ft loop depths, 1-1/4" HDPE U-bend loops, borefield thermal grid spacing (15-25 ft grid), and geothermal drilling contractor margins.

1. Project & Operating Inputs

Building HVAC Design Thermal Load (Tons e.g. 150 Tons GSHP)

Drilling Footage Ratio (Bore Feet / Ton e.g. 180 Ft/Ton)

Customer Bid Price for Turnkey Borefield ($ / Bore Foot e.g. $18.50/ft)

Mud Rotary Rig, HDPE U-Tube, Thermal Grout & Fusion Crew ($ / Ft)

2. Financial Breakdown & Yield

VERTICAL GEOTHERMAL BOREFIELD

Turnkey Drilling & Loop Profit

Geothermal Drilling Contractor Margin

0.0%

Gross Revenue / Bill

Total Project CapEx

Operating / Material Cost