Preventing Scaling and Corrosion in Geothermal Facilities with Novel Lubricant-Infused Barrier Coating

The California Energy Commission is overseeing a project titled Preventing Scaling and Corrosion in Geothermal Facilities with Novel Lubricant-Infused Barrier Coating. The initiative focuses on the development and demonstration of a superhydrophobic lubricant-infused composite barrier coating designed to protect piping in Salton Sea geothermal power plants from scaling and corrosion. Because the harsh brine conditions in these facilities cause uncoated metals to scale within hours, this slippery coating is intended to keep surfaces clean and ensure that any scale that does form can be removed using low-intensity cleaning. The project will be performed in Calipatria, California, and involves the installation of coated metal sheets and painted interior surfaces within pipe sections. Performance will be measured by installing one-meter sections of pipe into a geothermal process flow or test loop. This project is classified as a forecast under NAICS code 541713 and has been granted a California Environmental Quality Act Notice of Exemption, as it consists of research activities and minor alterations with no significant environmental impact. Key administrative contacts include Mechanical Engineer Chuck Gentry and Project Manager Chad Haugen.