For purposes of this article geothermal resources mean the natural heat of the earth at temperatures greater than forty degrees Celsius and includes:

1. (1) The energy, including pressure, in whatever form present in, resulting from, created by, or that may be extracted from that natural heat.
2. (2) The material medium, including the brines, water, and steam naturally present, as well as any substance artificially introduced to serve as a heat transfer medium.
3. (3) All dissolved or entrained minerals and gases that may be obtained from the material medium but excluding hydrocarbon substances and helium.

HISTORY: 1984 Act No. 375, Section 1.