PPM Energy Names New Wind Business Officers

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December 21, 2006

PORTLAND, Ore. - PPM Energy, Inc., ScottishPower's (NYSE: SPI) competitive U.S. energy business, has created two new executive positions to support its growing wind business. Jean Wilson will now serve as senior vice president of PPM's overall wind business, and Kevin Devlin will serve as vice president of commercial operations. Ty Daul will replace Wilson as vice president of renewable business development.

Jean Wilson has more than 13 years in the wind energy business in wind power development and marketing, including four years in wind development with Kenetech Windpower and 10 years with PPM and its former affiliate PacifiCorp. Wilson assumed responsibility for PPM Energy's wind development business in 2004. She now will be responsible for all of PPM Energy's renewable business chain overseeing development, construction and engineering, operations and maintenance, asset management and origination. Her pre-wind energy career includes four years in corporate banking with Bank of America, and four years in commercial real estate development with Tishman Realty Corporation. Wilson holds a B.S. in Finance from the University of Southern California, and an M.B.A. from Stanford University.

Kevin Devlin has more than 18 years experience in the energy industry, including ten years with Exxon. Devlin will oversee PPM Energy's newly formed Commercial Operations team including wind equipment and service procurement, as well as PPM's operations and maintenance (O&M) business services for others. Devlin joined PPM Energy in 2005 and was responsible for new business initiatives, including offering O&M services to third parties and expanding PPM's wind business into Canada. Devlin previously headed up the commercial development team for PPM's parent company, ScottishPower, in the UK with responsibility for originated power and gas transactions, coal trading and procurement, and environmental products. Devlin holds a B.Eng. in Mechanical Engineering from the Queens University of Belfast.

Ty Daul has more than 16 years in the energy business, including seven years in engineering and marketing roles with Westinghouse Electric's power generation group, and four years with Entergy and Newport Generation, leading gas-fired generation development. In his new role, he will be responsible for PPM's wind energy greenfield development and project acquisition. Daul joined PPM Energy in 2001, recently leading wind business development activities in the Western US. Daul holds a B.S. in Mechanical Engineering from the University of Washington, and an M.B.A. from Texas A & M.

PPM Energy (www.ppmenergy.com) now has more than 2,000 megawatts (MW) of wind energy in operation or under construction. The strength of its renewable project pipeline has allowed the company to increase its 2010 target by more than 50 percent to at least 3,500 MW developed or controlled by PPM Energy. PPM Energy balances its supply portfolio with sales to wholesale customers, placing almost all of its output in long-term contracts. Major customers include the cities of Seattle, Sacramento, Eugene, Pasadena, and Anaheim, as well as investor-owned utilities such as Xcel Energy and Pacific Gas & Electric Company and the federal Bonneville Power Administration. PPM Energy also creates innovative new products to meet customer needs such as operations and maintenance services and build-to-sell products, and recently announced an expansion into Canada.