This is our second integrated report, combining information about our financial performance with data on our environmental, social and governance performance. It also is the fifth year we are reporting on our sustainability performance. We are committed to this integrated reporting approach because it gives a complete picture of how we operate, the decisions we make, the positions we take, our engagement with stakeholders and the consequences of our actions.

Information contained herein is largely based on calendar year 2010, with exceptions for some early 2011 data as noted. Supporting information can be found on this dedicated sustainability website or on our corporate website at www.AEP.com.

In response to stakeholder interest, we report our progress twice a year. A full update is provided in the spring of each year. An update of key commitments is published on the Web in the fall at www.AEPsustainability.com/reporting.

Reporting Principles & Guidance

AEP follows the Global Reporting Initiative (GRI) reporting principles in terms of data quality, report content and organizational boundaries. We use the GRI’s G3 guidelines as well as the GRI Electric Utility Sector Supplement for reporting on industry-specific information. Our report is reviewed by GRI. This year’s report was validated as an Application Level A, which reflects a high level of transparency in our reporting.