Eavor’s technology consists of several Patent Pending innovations. The Eavor-Loop is a closed system within which a proprietary working fluid is contained and circulated. The working fluid is not fluid from a reservoir flowing into our wells, it is a fluid added to the closed-loop Eavor-Loop™ to create an efficient radiator, much like a vehicle radiator circulates fluid in a closed loop to remove heat from a gasoline engine.
Eavor-Loop™ harvests heat from deep in the earth to be used for commercial heating applications (ex: greenhouses or district heating) or to be used to generate electricity using conventional heat to power engines. Eavor-Loop™ is an industrial scale geothermal system that mitigates many of the issues with traditional geothermal systems, which rely upon using wells to produce brine from a subsurface aquifer.
The closed-loop is the key difference between Eavor-Loop™ and all traditional industrial-scale geothermal systems. Eavor-Loop™ is a buried-pipe system, which acts as a radiator or heat exchanger. It consists of connecting two vertical wells several kilometres deep with many horizontal multilateral wellbores several kilometres long. As these wellbores are sealed, a benign, environmentally friendly, working fluid is added to the closed loop as a circulating fluid. This working fluid is contained within the system and isolated from the earth in the Eavor-Loop™. The wellbores act as pipes, not wells producing fluid from the earth.
The working fluid naturally circulates without requiring an external pump due to the thermosiphon effect of a hot fluid rising in the outlet well and a cool fluid falling in the inlet well. The working fluid contained in this closed loop pipe system brings thermal energy to the surface where it is harvested for use in a commercial direct heat application or converted to electricity with a power generation module (heat engine). Unlike heat pumps (or “geo-exchange”), which convert electricity to heat using very shallow wells, Eavor-Loop generates industrial scale electricity or produces enough heat for the equivalent of 16,000 homes with a single installation.
– The ability to drill and intersect a multilateral Eavor-Loop™ with 2 laterals
– The ability to simultaneously drill and seal the wellbores, creating a closed-loop that is isolated from the surrounding formation and will neither leak fluid out of the Eavor-Loop™ nor allow formation fluids to ingress into the Eavor-Loop™.
– Prove the thermodynamic performance of the Eavor-Loop™ – that the subsurface heat transfer and thermosiphon effect match expectations.
Economic, clean, reliable power. – Energy never stops.
Eavor-Loop™ can be implemented almost anywhere at scale. Our sites can exist close to urban centres or in remote locations where getting electrical power is historically challenging.