The Swedish Radiation Safety Authority (SSM) has issued a final report to the Swedish government regarding its investigation into how the regulatory framework for the country’s nuclear power might be improved.

A team of experts from the International Atomic Energy Agency have completed a review of the long-term operational safety of Unit 3 at Sweden’s Ringhals nuclear power plant, noting substantial improvements from a previous agency visit in 2018.

The review, which had been requested by the Swedish Radiation Safety Authority (SSM), the Nordic nation’s nuclear regulator, wrapped up September 18.

According to the IAEA, the Safety Aspects of Long Term Operation (SALTO) team focused on aspects essential to the safe long-term operation (LTO) of Unit 3—a 1,062-MWe three-loop pressurized water reactor that entered commercial operation in September 1981. (Ringhals houses two additional operating reactors: Unit 1, an 881-MWe boiling water reactor that began operation in January 1976, and Unit 4, an 1,102-MWe PWR that started up in November 1983. Another unit, Ringhals-2, was permanently shut down at the end of last year.)

The original design lifetime of Unit 3 will expire next year, but Vattenfall AB, the plant operator, is planning to extend operation for a total operational lifetime of 60 years.