The VVER-TOI or WWER-TOI (Russian: Водо-водяной энергетический реактор типовой оптимизированный информатизированный, romanized: Vodo-Vodyanoi Energetichesky Reactor Tipovoi Optimizirovanniy Informatizirovanniy, lit. 'Water-Water Energy Reactor Universal[lower-alpha 1] Optimized Digital[lower-alpha 2]') is a generation III+ nuclear power reactor based on VVER technology developed by Rosatom.[1] The VVER-TOI design is intended to improve the competitiveness of Russian VVER technology in international markets. It would use VVER-1300/510 water pressurized reactors constructed to meet modern nuclear and radiation safety requirements.
The VVER-TOI project is developed on the basis of the design documents worked out for AES-2006, considering the experience gained in development of projects based on VVER technology both in Russia and abroad, such as Novovoronezh Nuclear Power Plant II. The first VVER-TOI will be unit 1 of the Kursk II Nuclear Power Plant.[2]