The OPR-1000 is a South Korean-designed two-loop 1000 MWe PWR Generation II nuclear reactor, developed by KHNP and KEPCO.
[1] The OPR-1000 was originally designated as the Korean Standard Nuclear Power Plant (KSNP), and was re-designated as the OPR-1000 in 2005 for foreign sales.
[2] It was developed based on the Combustion Engineering (C-E)'s system 80 design, through a technology transfer agreement.
Ten units are planned: The first start of the OPR-1000 at Shin Kori Nuclear Power Plant Unit-1 was 28 February 2011.
It is the first time that reactor, located 450 kilometers southeast of Seoul, has been shut down due to a malfunction since it began commercial operation on 28 Feb. 2011.