results to differ materially include, but are not limited to: general economic conditions, including the availability of credit, actions of rating agencies and their impact on capital expenditures; business conditions in the energy industry; competitive factors; unusual weather; effects of geopolitical events, including war and acts of terrorism; changes in federal or state legislation; regulation; actions of accounting regulatory bodies; and other risk factors listed from time to time by Xcel Energy in reports filed with the SEC, including Exhibit on our 2008 Form 10-K.