Exelon Nuclear entered into a contract with AREVA NP Inc., to design and build TMI's replacement steam generators. The cost of replacing TMI Unit 1's steam generators is a $300 million investment into the plant. The replacement steam generators will have numerous material and design enhancements compared to the original steam generators, such as Alloy 690 tubing for reliability and longevity, use of forgings to minimize pressure vessel welds, and improved access for inspections.By now, both steam generators should be on their 75 mile, 20 day land journey to Three Mile Island from Port Deposit, MD. I wish I could be the driver for those mammoths!
Dry Casks 101: Managing Heat
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