CalEnergy, part of BHE Renewables, operate 10 generating plants in the Salton Sea ‘Known Geothermal Resource Area’ in Southern California’s Imperial Valley. The individual plants were developed between 1982 and 2000, and generate around 330MW of power. Langley Alloys has supplied large quantities of corrosion resistant alloys in plate form, predominantly Alloy 2205, used for the fabrication of pipework and treatment units. Whilst super duplex alloys such as Alloy 32750 have been used to replace the original Alloy 625 material, with significant savings, Alloy 2205 has shown to provide acceptable corrosion resistance in areas of the plant where the temperature of the geothermal fluid has dropped below 180degC/370degF.

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