TOKYO--US-APWR reactor technology developed by Mitsubishi Heavy Industries, Ltd. (MHI) is selected by TXU for its new nuclear-fueled power generation capacity.

TXU plans to file applications for combined construction and operating licenses using US-APWR technology for 2-6 gigawatts at multiple sites including Comanche Peak site which has two units in operation. The filings would facilitate commercial operation of the units starting from 2015 to 2020. Friday, March 9, 2007, TXU formally notified its reactor selection to the US Nuclear Regulatory Commission (NRC) and launched the preparation of Combined License (COL) application per 10 CFR Part 52.

MHI has developed the US-APWR based on technologies for a 1,538 MW APWR planned for use at the Tsuruga Power Station Units 3 and 4 of the Japan Atomic Power Company. A variety of modifications are added in reflection of the demands of U.S. customers for enhanced performance; improvements include the world's highest level of thermal efficiency (39%), a 20% reduction in plant building volume, 24 months fuel cycle length, and greater economy by increasing the power generation capacity to 1,700 MW class which is the world largest class. MHI is planning to construct the US-APWR in cooperation with a major engineering and construction company, Washington Group International Inc. in U.S. MHI is jointly promoting this US-APWR with Mitsubishi Corporation in U.S. market.

MHI has established MHI Nuclear Energy Systems Inc. (MNES), a wholly owned subsidiary, in Washington, D.C., and has started procedures to submit an application to NRC for Design Certification of the US-APWR. MHI makes good progress on formal application for Design Certification that will be conducted through the end of 2007.

TXU's selection is believed to be based on the US-APWR's excellent economy, proven safety and reliability, and MHI's comprehensive capability to undertake engineering, fabrication, construction, detailed maintenance and supply of high reliability fuel. In Japan, MHI has engaged in the construction of 23 Pressurized Water Reactors and is constructing one nuclear power plant. MHI will pursue further deployment of the US-APWR technology and promote US-APWR to the utilities who are under consideration of their new reactor type.