Energy Transfer System with Underground Thermal Storage and Corresponding Method

2:

• (canceled)

3:

• The system of claim 1, wherein said second layer of water impermeable material fully surrounds said layer of moist aggregate, thereby helping cause said layer of moist aggregate to become a layer of fully saturated aggregate containing more than 35% water by weight.

4:

• (canceled)

5:

• The system of claim 2, wherein said heat exchangers comprises one or more spiral pipe arrays having at least one centrally located fluid connection.

6:

• The system of claim 5, wherein said heat exchangers comprise at least two of said spiral pipe arrays located one above the other.

7:

• The system of claim 2 wherein said thermal exchanges comprises two laterally linked slinky units having one centrally located fluid connection.

8:

• (canceled)

9:

• The system of, wherein said heat exchangers comprises at least four multi-slinky modules, with each of said multi-slinky modules having at least one slinky unit.

11:

• (canceled)

12:

• The method of claim 10, wherein said second layer of water impermeable material fully surrounds said first layer of aggregate, thereby causing said first layer of aggregate to contain more than 35% water by weight.

13:

• (canceled)

14:

• The method of claim 12, wherein said heat exchangers comprise one or more spiral pipe arrays having at least one centrally located fluid connections.

15:

• The method of claim 12, wherein said heat exchangers comprise one or more spiral pipe arrays having at least one centrally located fluid connections.

16:

• The method of claim 12, wherein said heat exchangers comprise two laterally linked slinky units having at least one of said centrally located fluid connection.

17:

• (canceled)

18:

• The method of claim 12, wherein said thermal exchanges comprises at least four multi-slinky modules, each of said multi-slinky modules having at least one slinky unit.