Does the reinforced concrete foundation of a wind turbine have a lifespan?

There must be a shelf life, but the duration is different. When its lifespan exceeds 100 years, it is considered permanent for us humans. If you protect it well, it will last more than 20 years. As long as the quality meets the standard, 50 years is not a big problem. The bottom line is that metal towers exposed to air should be treated with a rust preventative.