The Nuclear Regulatory Commission has approved subsequent license renewals for St. Lucie Units 1 and 2, extending the operating licenses for the pressurized water reactors by another 20 years.

Tuesday’s approval means that the 1,062-MWe Unit 1 and 1,074-MWe Unit 2 can now operate until March 1, 2056, and April 6, 2063, respectively. Unit 1 commenced operations in 1976 and Unit 2 in 1983. With the original 40-year operating licenses and first 20-year renewals, these second 20-year renewals bring the reactors’ lifespan to 80 years.

The Nuclear Regulatory Commission has renewed the Robinson nuclear power plant’s operating license in record time, the agency announced last week.

The subsequent license renewal process for the Hartsville, S.C., facility was completed within 12 months, according to the NRC. The process has typically taken 18 months. This was the first license renewal review conducted under the directive of Executive Order 14300 to streamline processes like renewing operating licenses.

The Nuclear Regulatory Commission has accepted for review the subsequent license renewal application for Duke Energy’s Oconee nuclear plant, the agency announced yesterday. The utility submitted the application for an additional 20 years of operational life for Oconee on June 7. A public version of the application (with proprietary details removed) is available on the NRC website.

Duke Energy has filed a subsequent license renewal (SLR) application with the Nuclear Regulatory Commission for the Oconee nuclear plant reactors, the Charlotte, N.C.–based utility announced on June 21.