ANNEX I. ABWR-II

TEPCO, Ge, Hitachi Ltd, Toshiba Corporation

I — 1. Introduction

The ABWR-II, an evolutionary reactor based on the advanced BWR (the ABWR), is now being jointly developed by six Japanese BWR utilities led by Tokyo Electric Power Company (TEPCO), General Electric Company, Hitachi Ltd, and Toshiba Corporation.

By adopting a large electric output (1700 MW(e)), a large fuel bundle, a modified ECCS, and passive heat removal systems, among other design features, a design concept capable of increasing both economic competitiveness and safety performance has been achieved.

The key objectives of ABWR-II are further improvement in economics against alternative forms of electric generation and enhancement of safety & reliability. ABWR-II plant system features are summarized in Figure I-1.