Three new wind customers buy 100 MW from PPM

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December 9, 2004

PORTLAND , Ore. – PPM Energy, Inc. (PPM), ScottishPower’s (NYSE: SPI) competitive US energy business, today announced sales totaling more than 100 megawatts by three new wind customers.

Portland General Electric (PGE) today executed a 30-year agreement with PPM to purchase 75 megawatts (MW) of wind capacity to serve PGE customers beginning in December 2005. Through this agreement, PGE will purchase all of the output of PPM’s Klondike II Expansion Wind Project soon to be under construction near Wasco, Ore.

“We are pleased to be delivering more renewable energy to our customers at an affordable price and we trust PPM Energy’s record as a reliable and responsible power supplier,” said Jim Lobdell, PGE’s vice president of power operations and resource strategy. “Increasing supply diversity and adding more renewable energy to our supply portfolio were two of the goals in our Integrated Resource Plan, and this moves us closer to meeting those goals.”

On Tuesday night, The City of Alameda in California approved a nearly 24-year contract with PPM for 10 MW of electricity from the nearby High Winds Energy Center located in Solano County, California. With a capacity of 162 MW, High Winds is the largest single wind generating facility in California.

On December 1, the City of Palo Alto Utilities also began taking 20 MW of electricity generated from High Winds from PPM for nearly 24 years.

About PPM Energy

PPM Energy is part of the ScottishPower ((NYSE: SPI) group of companies. With a portfolio of more than 830 MW of wind power currently in operation in seven states, PPM has a goal of bringing 2,300 MW of new wind power to market by 2010. PPM 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, Pasadena, Anaheim as well as investor- owned utilities such as Alliant Energy and Xcel Energy and the federal Bonneville Power Administration. PPM also has about 800 MW of clean gas resources under its control to give customers a wide range of options for adding environmentally responsible energy to their portfolios. The U.S. Environmental Protection Agency, the U.S. Department of Energy, and the Center for Resource Solutions honored PPM recently for significantly advancing development of the green power market. For more information, please visit www.ppmenergy.com.

Art Sasse, Director, Communications & Brand, Iberdrola Renewables, 503-796-7740
Paul Copleman, Media Relations, Iberdrola Renewables, 207-641-2805