New geothermal technology Fervo Energy. Free Technical Library News

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New geothermal technology Fervo Energy

19.07.2023

Fervo Energy has completed a successful test of its geothermal well in Nevada, producing 3,5 MW of electricity for 30 days.

Geothermal energy is based on the use of heat from hot sources such as thermal groundwater. However, achieving a sustainable geothermal system requires a combination of heat, fluid, and rock permeability. Fervo Energy has developed an innovative approach by creating artificial wells and filling them with water that is heated by the earth. Then a special turbine converts the received heat into electricity.

During testing, the company achieved a water flow rate of 62 liters per second, generating 3,5 MW of electricity (which can power approximately 750 homes at the same time). The resulting flow and power output data will be used to further improve geothermal systems.

This year, Fervo plans to connect its Project Red well to the grid to power Google's data centers and other infrastructure as part of a 2021 deal.

This is the first commercial application of geothermal technology and demonstrates the potential of this energy system, something scientists have been striving for since the 1970s.

Fervo has successfully drilled several horizontal wells for the commercial production of geothermal energy, reaching almost a kilometer of horizontal length and a temperature of 191°C. Careful testing and monitoring have confirmed the controllability of the process.

The benefits of geothermal power plants include zero carbon emissions (Google aims to use only carbon-free energy in its offices and data centers by 2030) and the ability to operate around the clock (unlike solar and wind power). However, cost cuts and regulatory hurdles are making it difficult to adopt the technology more widely, according to Fervo CEO Tim Latimer.

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