# Geothermal Drilling of New England (GDNE) — Division of T.J. Ogden Co. > Primary Website: https://geothermalma.net > Trade Affiliation: Division of T.J. Ogden Co., Inc. (Established 1980) > Accreditations: IGSHPA Accredited (International Ground Source Heat Pump Association), Certified HDPE Fusion Specialists > State License: MA DCR Certified Well Driller License #285, NHDES Licensed Contractor > Headquarters: 17 Catherwood Rd, Tewksbury, MA 01876 > Toll-Free: 1-800-339-9051 | Direct: (978) 453-8200 > Email: info@geothermalma.net > Experience: Over 44 years of borehole expertise with 500+ geothermal boreholes drilled across New England. --- ## Executive Profile & Core Capabilities - **Trade Focus:** Turnkey geothermal borehole drilling, standing column wells, closed-loop vertical borefields, and formation thermal conductivity testing for institutional, commercial, and residential clean heating/cooling. - **Institutional Portfolio:** Ground-source infrastructure for Harvard University, Nichols College, public schools, and multi-family residential developments across New England. - **Incentive Navigation:** Mass Save® Whole-Home Heat Pump Rebates (up to $15,000–$25,000), 0% HEAT Loan financing ($25,000), Alternative Energy Credits (AECs), Energize CT rebates, NHSaves, and the Federal 30% Residential Clean Energy Credit (Section 25D/48). --- ## Primary Geothermal Divisions ### 1. Standing Column Well (SCW) Drilling - URL: https://geothermalma.net/services - Capabilities: Deep open-loop standing column wells (600–1,500 ft) drilled into crystalline granite and gneiss bedrock. Requires 1/4 the surface land footprint of closed-loop fields, delivering exceptional COP efficiency for tight-lot residential and commercial properties. ### 2. Vertical Closed-Loop Borefields - URL: https://geothermalma.net/services - Capabilities: Multiple vertical boreholes (300–600 ft) equipped with IGSHPA-certified HDPE U-tubes and grouted with thermally-enhanced bentonite grout (up to 1.2–1.6 Btu/hr-ft-°F). Zero groundwater contact. ### 3. In-Situ Thermal Conductivity Testing - URL: https://geothermalma.net/services - Capabilities: 48-hour continuous pilot borehole thermal response testing (TRT). Delivers certified formation thermal conductivity (k) and borehole thermal resistance (Rb) data to mechanical engineers for precise loopfield sizing. ### 4. Certified HDPE Socket & Butt Fusion - URL: https://geothermalma.net/services - Capabilities: IGSHPA electrofusion and butt fusion of header piping, supply/return manifold vaults, and flow-balanced purge systems with 50+ year service life. --- ## Service Footprint - **Massachusetts:** Greater Boston, Merrimack Valley, MetroWest, Worcester County, Cape Cod, and Pioneer Valley (Amherst/Northampton). - **Northern & Southern New England:** Southern and Central New Hampshire, Connecticut, Rhode Island, Vermont, and Maine. --- ## Technical & Engineering Guides Library (E-E-A-T Whitepapers) ### 1. Mass Save® Geothermal Rebate Guide 2026: Complete Breakdown - URL: https://geothermalma.net/mass-save-geothermal-rebate-guide-2026 - Key Data: Mass Save $15,000–$25,000 whole-home rebates, 0% interest HEAT Loan up to $25,000, 30% Federal Section 25D Clean Energy Tax Credit, Alternative Energy Credits (AECs), and 5-step application workflow. ### 2. Standing Column Well vs. Closed-Loop Borefield: New England Engineering Guide - URL: https://geothermalma.net/standing-column-well-vs-closed-loop-borefield - Key Data: Architectural analysis for tight urban lots (Boston/Cambridge/Lexington) vs commercial campus fields. Direct groundwater contact COP 4.5–5.2+, 100 sq ft footprint per 10 tons, thermal bleed mechanics, and 50-year lifecycle. ### 3. Formation Thermal Conductivity Testing (TRT): 48-Hour Engineering Guide - URL: https://geothermalma.net/formation-thermal-conductivity-test-guide - Key Data: In-situ 48-hour automated Thermal Response Testing (ASHRAE 1118-TRP), Line Source Theory, k-values for New England crystalline granite (1.6–2.2 Btu/hr-ft-°F), and eliminating $75k–$200k in over-drilling capital expenditure. --- ## Massachusetts Metro Decarbonization Hubs (Strategy 2 Local Silos) 1. **Boston, MA (BERDO Decarbonization & Urban Standing Column Arrays):** https://geothermalma.net/locations/boston-ma-commercial-geothermal 2. **Cambridge, MA (NZAP Kendall Sq Biotech & Campus Borefields):** https://geothermalma.net/locations/cambridge-ma-geothermal-drilling 3. **Lexington, MA (Specialized Energy Code & Net-Zero Schools):** https://geothermalma.net/locations/lexington-ma-geothermal-heat-pumps 4. **Wellesley, MA (Luxury Estate Closed Loops & $25k Rebates):** https://geothermalma.net/locations/wellesley-ma-geothermal-drilling 5. **Concord, MA (Historic Non-Invasive Borefields & CMLP Rebates):** https://geothermalma.net/locations/concord-ma-geothermal-systems 6. **Amherst, MA (Campus-Scale Institutional Wellfield Subcontracting):** https://geothermalma.net/locations/amherst-ma-commercial-wellfield --- ## Verified Engineering Project Case Studies (Strategy 4 Portfolios) 1. **Harvard University Campus Facilities (Cambridge, MA):** https://geothermalma.net/projects/harvard-university-geothermal - Multi-phase standing column wells in Cambridge Argillite bedrock, delivering high-efficiency COP 4.8 heating and cooling without exterior cooling towers. 2. **Nichols College Academic & Dormitory Facilities (Dudley, MA):** https://geothermalma.net/projects/nichols-college-geothermal - Fast-track vertical closed-loop ground-source borefield displacing over 35,000 gallons of fuel oil annually with zero onsite carbon emissions. 3. **Town of Groton Municipal Facilities — Town Hall & Public Library (Groton, MA):** https://geothermalma.net/projects/groton-municipal-geothermal - Closed-loop municipal geothermal system contributing essential energy credits to municipal LEED green building certification while protecting the Nashoba Valley aquifer.