Eavor Technologies Inc. (pronounced “ev-er”) is a global geothermal technology company headquartered in

Calgary, Alberta Calgary ( ) is the largest city in the western provinces and territories of Canada, Canadian province of Alberta and the largest metro area of the three Canadian Prairies, Prairie Provinces. As of 2021, the city proper had a population of 1,30 ...

. The firm was founded in 2017 with the goal of producing a

scalable Scalability is the property of a system to handle a growing amount of work by adding resources to the system. In an economic context, a scalable business model implies that a company can increase sales given increased resources. For example, a ...

form of

baseload The base load (also baseload) is the minimum level of demand on an electrical grid over a span of time, for example, one week. This demand can be met by unvarying power plants, dispatchable generation, or by a collection of smaller intermittent e ...

, dispatchable energy.

Technology

Eavor-Loop

Eavor-Loop is a closed-loop geothermal energy extraction system. It is a buried well system consisting of two vertical wells several kilometers deep connected by an extended system of interconnected multilaterals. Multilaterals are drilled connecting the vertical wells, parallel to each other. The multilaterals are not cased with steel, but rather a polymer in the drilling mud is used to seal the inside of the pipe from the surrounding rock. This is done to increase heat extraction efficiency in the horizontal plane by exposing the system to a larger volume of rock. A benign working fluid is circulated within the completely contained system, which harvests heat from within the earth and brings it to the surface where it can be used for commercial heating applications or electricity generation. Circulation is added by the

thermosiphon Thermosiphon (or thermosyphon) is a method of passive heat exchange, based on natural convection, which circulates a fluid without the necessity of a mechanical pump. Thermosiphoning is used for circulation of liquids and volatile gases in heat ...

effect, where temperature differences between the upflowing and downflowing working fluid cause the system to circulate without pumps.

Environmental impact

The key feature of the firm's geothermal technology is the closed-loop nature of the system. This mitigates many of the risks associated with traditional geothermal technologies, which use wells to produce brine from subsurface aquifers. As a closed-loop system that operates in complete isolation from the surrounding environment, the system requires no

fracking Fracking (also known as hydraulic fracturing, hydrofracturing, or hydrofracking) is a well stimulation technique involving the fracturing of bedrock formations by a pressurized liquid. The process involves the high-pressure injection of "frack ...

, produces no

greenhouse gas emissions Greenhouse gas emissions from human activities strengthen the greenhouse effect, contributing to climate change. Most is carbon dioxide from burning fossil fuels: coal, oil, and natural gas. The largest emitters include coal in China and lar ...

, poses no earthquake or subsidence risk, no water use, produces no brine or solids, and no aquifer contamination.

Facilities

The Eavor-Lite Demonstration Project is a full-scale prototype of the firm's technology suite located near Rocky Mountain House, Alberta. Construction began in August 2019 and was completed in February 2020. The system consists of two vertical wells connected toe to toe, with one multilateral well drilled off the horizontal section, parallel to the original well. The project was not intended to be commercially viable, but was designed to demonstrate critical elements of the technology at the lowest cost. The firm announced the official completion and third party validation of the project on February 5, 2020.

Projects

In January 2020, Eavor Yukon announced a partnership with Carmacks Development Corporation (CDC), owned by the Little Salmon Carmacks First Nation, to establish Eavor-Loop technology in the Yukon. In May 2020, Eavor Technologies entered into a letter of intent with Enex Power Germany GmbH to form a geothermal project development company to construct Eavor-Loop heat and power projects within Enex’s existing geothermal license area in Bavaria, Germany. Under German EEG law the project will be subsidised by a fixed power price of €227/MWh (approx. CAD $344/MWh) until 2042 (assuming it's commissioned in 2022). The first loop of four loops began drilling in July 2023 and is expected to be completed and begin commercial operation in October 2024 In May 2020, the firm announced the launch of second generation technology featuring a new demonstration site, Eavor-Long, in locations across Canada, France, Norway and the United States. In 2022, Eavor announced plans for projects across Europe and North America.

References

External links

* {{official website, https://eavor.com Renewable energy technology companies Geothermal energy in Canada Companies based in Calgary Canadian companies established in 2017