GEOTHERMAL GROUND LOOP ENGINEERING (GLE) TECHNOLOGY, NAMELY: (I) GROUND HEAT EXCHANGERS (GHES) AND KITS FOR CONSTRUCTING THE SAME; (II) INSTRUMENTS, SYSTEMS AND NETWORKS FOR MEASURING AND RECORDING THE HEAT TRANSFER RATE (HTR) AND FLOW WORK RATE (FWR) PERFORMANCE OF GHE INSTALLATIONS IN DEEP EARTH ENVIRONMENTS; (III) TECHNIQUES AND TECHNOLOGIES, SUCH AS SPREADSHEET WORKBOOKS, CALCULATORS AND COMPUTER PROGRAMS, FOR DESIGNING AND SIZING GLHE SUBSYSTEMS BASED ON ACTUAL ENERGY PERFORMANCE MEASUREMENTS MADE ON GHE TEST INSTALLATIONS; (IV) CONTROL MODULES FOR CONTROLLING THE FLOW RATE OF AQUEOUS-BASED FLUIDS IN HYDRAULIC LOOPS, INCLUDING GLHE GROUND LOOPS; (V) GLHE SYSTEM INSTALLATION; AND (VI) TECHNIQUES AND INSTRUMENTATION FOR MONITORING THE ENERGY PERFORMANCE OF GHES AND GLHE SUBSYSTEM INSTALLATIONS