Cluster, dufus, meaning multiple buildings proximal to one another, dufus. One building will work, depending on the transmissivity of the aquifer they are exchanging heat with and its recharge distributive rate. This is called a "convection" system.<quoted text>
Well, well,well, the pretend geologist proves once again he is either no geologist or the dumbest f*cking geologist on the planet.
There are commercial buildings with a grids of 300 to 500 holes up to 500 foot deep. Holes are around 15' apart. They have been studied & tested & they prove you to be wrong.
If the geologic member does not have a flow of water, then the system would be called a "conduction" system, and be much, much less effective.
Referencing your example, if a building up-dip was doing the same thing, the heat from the building up-dip would be transferred by mass flow to the places where the holes were dug for the building down-dip trying to dissipate heat into the same formation member... dufus.
You see, the water in the aquifer of the up-dip building will carry the heat from the up-dip building to the down-dip building... dufus.
Now that you have a very elementary explanation, you can construct your thermodynamic model and see that heat doesn't just disappear. It has to go somewhere, you f**k*ng idiot.