October 19, 2005 No.1078

MHI Receives Order for a Combined Cycle Power Plant in Ireland Mitsubishi's First Turnkey Contract in Ireland

Tokyo, October 19, 2005 - Mitsubishi Heavy Industries, Ltd. (MHI) has received a full-turnkey order from Viridian, an electricity producer and distributor in Ireland, to construct a gas turbine combined-cycle (GTCC) power generation plant at Huntstown, near Dublin. The event marks MHI's first turnkey power plant order in Ireland.

MHI's F-type gas turbine rotor     The newly ordered 400 MW (megawatt) plant is to consist of one M701F gas turbine, one steam turbine, one heat recovery steam generator (HRSG) and one generator. The gas and steam turbines will be manufactured at MHI's Takasago Machinery Works, the generator will be made by Mitsubishi Electric Corporation, and the HRSG will be procured from a global supplier. Mitsubishi Corporation, a trading company, will also participate in the project. Viridian has already built a 343 MW GTCC plant at Huntstown, and first phase went on stream in November 2002. In response to tight electricity supply in Ireland and liberalization of Europe's electricity industry overall, the company has decided to build a second power station adjacent to the existing plant. Full-scale construction work is due to commence in October 2005. When completed, the expanded Huntstown facility will have capacity to meet roughly 17% of Ireland's total electricity requirement. Output will be sold through Energia, Viridian's market supply business. The GTCC plant on order will use natural gas for primary fuel supported by distillate for standby. Use of natural gas results in higher power- generating efficiency than coal- or oil-fired power plants, enabling reduced flue-gas emissions and thereby making gas-fueled plants more environmentally friendly. With this type of GTCC power generation, gas and steam turbines are used in combination to generate electricity in two stages. In the first stage, a gas turbine generates electricity; in the second stage, steam produced in an HRSG generated by high-temperature exhausts from the gas turbine drives the steam turbine, again producing electricity. This dual configuration enables GTCC plants to achieve higher thermal efficiency than conventional non- GTCC power plants. In recognition of these advantages, MHI has been marketing its gas-fueled GTCC plants aggressively. Now, building on the momentum of this latest order, it will further strengthen its marketing activities worldwide. # # # About Mitsubishi Heavy Industries Mitsubishi Heavy Industries, Ltd. (MHI), headquartered in Tokyo, Japan, is one of the world's leading heavy machinery manufacturers, with consolidated sales of 2,590 billion yen in fiscal 2004 (year ended March 31, 2005). MHI's diverse lineup of products and services encompasses shipbuilding, steel structures, power plants, chemical plants, steel plants, environmental equipment, industrial and general machinery, aircraft, space rocketry and air-conditioning systems. For more information, please visit the MHI website (http://www.mhi.co.jp). PRESS CONTACT: Hideo Ikuno: h.ikuno@daiya-pr.co.jp Tel: +813-6716-5277, Fax: +813-6716-5929 Daiya PR (in charge of public relations for Mitsubishi Heavy Industries, Ltd.)

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