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GeoCoat Project Report Published

Thu, 30 March, 2023

The Geo-Coat project consortium have published a report detailing the results of testing on a new protective coating for use in geothermal environments.

TWI worked as part of the consortium on this Horizon 2020-funded project to create specialised coatings capable of resisting the eroding and corrosive effects of aggressive geothermal environments.

A report, which you can see below, details the outcomes of rigorous testing on the most promising of the coatings.

A turbine component was coated with the newly-developed coating before being subjected to eight weeks of geothermal environment exposure at the Hellisheiði power plant.

Following the period of exposure, the part was examined so levels of corrosion could be assessed to determine the effectiveness of the coating.

The report details the test conditions used and the outcome of the assessments, with both cross-sectional and surface analysis results presented. The report provides details of how the coating reacted to the corrosive test environment, including how the substrate was affected when coated compared to when it was left bare.

The project report includes figures, tables and data to support the findings as it details whether this coating is suitable for service in geothermal environments to help prolong the life of components and reduce the cost of geothermal operations.

You can see the full report from the project consortium, below, and find out more about the Geo-Coat project here:

Geo-Coat Project Report - pdf - 1mb


The Geo-Coat project was funded by the European Union’s H2020 research and innovation programme, Grant agreement, no. 764086.

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