Whenever you consider Ground Source & Geothermal Heat Pumps, you think about substantial ground temperatures which can produce extremely effective performance.
Closed Loop Borehole
Flow/return pipes operating down/up within a single borehole to depths of 150m + (multiple boreholes inside a system array).
Horizontal Collector
Pipes under the ground at circa 1200 to 1500mm deep run horizontally, with the majority of the thermal collection being solar/surface heat derived geothermal heat pumps due to the shallow collector depth (valuable ground temperature starts off at 15m depth).
Open Loop Borehole
Good levels read more of Heat Pump efficiency are achieved a result of the trustworthy temperatures that may be delivered from aquifer systems.
Here, a flow borehole plus a separate return borehole flow into ground/aquifer water to the Heat Pump.
All three methods provide application benefits to appropriate projects and might be configured as primary ground source collector-driven heat pump systems, or air/ground dual-source systems to cut back civil costs wherever needed.