Duke Energy Corp., the largest U.S. utility owner, will permanently shut its Crystal River nuclear power plant in Florida after deciding the risks and costs associated with repairing it outweighed the benefits.

Duke will seek $1.65 billion from Florida customers for its failed investments in the reactor, the Charlotte, North Carolina-based company said in a filing Tuesday. The cost recovery can begin in 2017 and last 20 years under a settlement approved by state regulators last year.