How long does a civilian nuclear plant designed to last?

A civilian nuclear power plant is typically designed to have an operational lifespan of about 40 to 60 years. With appropriate maintenance, upgrades, and refurbishments, some plants can extend their operational life beyond 60 years. The specific lifespan can vary based on the technology used, regulatory requirements, and operational conditions. Regular assessments and improvements are crucial to ensuring the plant remains safe and efficient throughout its life.