Dr. Otto Svec is the inventor of the upright slinky or the “Svec Spiral”. It is used as an alternative to vertical drilled geothermal wells, extracting energy per square foot of surface land. Attached is a picture of one of the most experienced in Canada, Larry Gilesky installing a Svec Spiral at the FMRP (Farmers Mutual Reinsurance Plan).
Check out the article here.