Pinnacle West Capital Corporation

Donald E. Brandt 57 Chairman of the Board and Chief Executive Officer of Pinnacle West; Chairman of the Board of APS 2009-Present President of Pinnacle West 2008-Present Chief Executive Officer of APS 2008-Present Chief Operating Officer of Pinnacle West 2008-2009 President of APS 2006-2009 Executive Vice President of Pinnacle West; Chief Financial Officer of APS 2003-2008 Chief Financial Officer of Pinnacle West 2002-2008 Executive Vice President of APS 2003-2006

Donald G. Robinson 58 President and Chief Operating Officer of APS 2009-Present Senior Vice President, Planning and Administration of APS 2007-2009 Vice President, Planning of APS 2003-2007

Denise R. Danner 56 Vice President, Controller and Chief Accounting Officer of Pinnacle West; Chief Accounting Officer of APS 2010-Present Vice President and Controller of APS 2009-Present Senior Vice President, Controller and Chief Accounting Officer of Allied Waste Industries, Inc. 2007-2008 Vice President, Controller and Chief Accounting Officer of Phelps Dodge Corporation 2004-2007

Patrick Dinkel 48 Vice President, Power Marketing, Resource Planning and Acquisition 2011-Present Vice President, Power Marketing and Resource Planning 2010-2011 General Manager, Strategic Planning and Resource Acquisition 2009-2010 Director of Resource Acquisitions and Renewables 2007-2009 Director of Planning and Resource Acquisitions 2004-2007 42