Plant life extension for Torness nuclear power station

Torness nuclear power station comprises two advanced gas-cooled reactors (AGR) each with an original design rating of 16OOMW(Th). The first unit was commissioned in May 1988 and the second unit in February of the following year. This paper describes the systematic approach adopted in developing the case for life extension at Torness. The incentives for power plant life extension are discussed as are the dominant life limiting processes. The results of the study are for the in-reactor metallic components and for the graphite moderator