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Mitsubishi Electric to Ship Digital Instrumentation and Control System for Chinese Nuclear Power Plant

First collaborative Chinese-Japanese nuclear power project

Tokyo, September 16, 2010 - Mitsubishi Electric Corporation (TOKYO: 6503) announced that it will ship the first of 10 sets of digital instrumentation and control (I&C) systems for nuclear power plants in China, an order worth a total of 48 billion yen, as part of the first commercial collaboration between China and Japan in the field of nuclear power. The digital I&C systems, manufactured jointly by Mitsubishi Electric and its system engineering consortium partner, China Techenergy Corporation Ltd. (CTEC), control and monitor entire nuclear power plants to ensure safe operations and efficient power generation.

Digital Instrumentation and Control System for Nuclear Power Plant

In July 2007, the consortium of Mitsubishi Electric and CTEC won an order for six digital I&C systems to be used in nuclear power plants in China, making Mitsubishi Electric the first Japanese firm to win such orders in China. Following their first order, they started on the system design and, in 2009, moved onto the assembling and testing stages at CTEC's Beijing factory. The first digital I&C system will be delivered to Liaoning Hongyan he Nuclear Power Plant Unit 1, which is scheduled to start operation in 2012. Built by China Guangdong Nuclear Power Holding Corporation Ltd. (CGNPC), Liaoning Hongyan he Nuclear Power Plant Unit 1 will have an output capacity of 1,000 megawatts (MW).

The digital I&C system comprises a main control board for controlling plant operation, non-safety control cabinets, safety protection cabinets and related software equipped in each cabinet. There are approximately 180 cabinets for this plant in total. Mitsubishi Electric assumes the role of coordinating the entire project as the consortium leader and manufactures the safety protection cabinets used for safely bringing down the plant in cases of emergency. CTEC manufactures the non-safety control cabinets, which run according to the instructions given by the main control board and are used for normal plant operation.

The capacity of nuclear power plants in China is expected to increase from the current 9,000MW to 60,000MW by 2020 and up to 160,000MW by 2030, with more than 50 new nuclear power plants planned. By 2015, 10 of the 12 CPR1000-type*1 nuclear power plants in China will be using Mitsubishi Electric's digital I&C safety systems, and another 24 are planned to be built within the next decade. Mitsubishi Electric strives to further strengthen its business to win more orders for digital I&C systems to be used in these plants.

*1: China's self-designed pressurized water reactor with output capacity of 1,000 MW.