There is a mothballed geothermal plant near El Centro CA.
It was built after the last energy crisis, but never operated, because of high operating costs.
Hot fluids from the earth=corrosion.
Here’s one everybody will understand. Ever been to Yellowsone Park? They used to have metal handrails aound some of the geysers and paint pots, but they didn’t last very long. I think most of them are wood now.