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Renewable Energy Global Experience MidAmerican Energy Holdings Company's commitment to the environment begins with the manner in which we generate electricity. A growing portion of our electricity generation mix now comes from environmentally cleaner sources such as wind, water and the earth's natural heat. Learn more about our renewable efforts by selecting any of the geographic regions depicted below. News Room | Subsidiaries | Economic Development | Environmental Efforts | Governmental Affairs About Us | Careers | Chairman's Message | Contact ©2008 MidAmerican Energy Holdings Company. All rights reserved.