International Power Completes Acquisition of Canadian Wind Farm Developer

(London - 22 October 2009) Further to our announcement on 30 September 2009, International Power has successfully completed the acquisition of AIM PowerGen Corporation (AIM), one of Canada's largest independent wind farm developers, from Renewable Energy Generation Limited. The non-recourse debt financing for the 40MW Harrow project has now been successfully completed, resulting in an enterprise value of C$241 million (£139 million) for the entire transaction, with a total cash consideration of c$119 million (£69 million). The acquisition is expected to be immediately free cash flow positive, and earnings accretive once the Harrow project construction programme completes in 2010.

The AIM portfolio is concentrated in Ontario, with 40MW of wind farms in operation in addition to the Harrow project, which has already commenced construction and is on plan for completion in the first half of 2010. AIM also has an advanced development pipeline of 1,200MW in Ontario and across Canada. Canada has a strong commitment to renewable generation, with markets such as Ontario providing a supportive regulatory environment, including 20-year off-take contracts with feed-in tariffs.

Notes to Editors:

To view related announcements please visit http://www.ipplc.com/ipr/news/press/pr2009/.

An exchange rate of £1: C$1.73 has been applied in this announcement.

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International Power

About International Power

International Power plc is a leading independent electricity generating company with 32,949MW gross (21,239MW net) in operation and 3,330MW gross (1,028MW net) under construction. International Power has power plants in operation or under construction in Australia, the United States of America, the United Kingdom, Belgium, Canada, the Czech Republic, France, Germany, Italy, the Netherlands, Portugal, Spain, Turkey, Bahrain, Oman, Qatar, Saudi Arabia, the UAE, Indonesia, Pakistan, Puerto Rico and Thailand. International Power is listed on the London Stock Exchange with ticker symbol IPR. Company website: www.ipplc.com.