Pursuant to Docket ER08-396, the Transmission Formula Rate and Protocols filed with the Commission on September 26, 2008 became effective October 1, 2008. Under the new protocols, Westar is required to post the results of the actual revenue requirement for the previous year by June15th of each year with the final projected revenue requirement being posted by October 15th. A customer meeting to review the results of the June 15th update will be on June 23rd at the Westar Energy Offices in Topeka. Formula Rate Updates: Calculation of the 2008 Actual Revenue Requirement June 15, 2009 - Posting of the first part of the Westar Transmission Formula Rate utilizing 2008 actual information. TransmissionFormulaRateUpdate-2010-ActualData-20090615 Revenue Requirements for 2009 October 29, 2008 - In reviewing the results of the formula with SPP, it was discovered that the total line on the BPF tab, line T1 did not include all the revenue requirements for all the Actual, non-incentive Projects. This summation has been fixed. It does not affect the total Revenue Requirment, however, it does increase the total Base Plan Funded Revenue Requirements (Projected Net Revenue Requirment tab, line 9 and 9b). Increasing these totals reduces the Westar Zonal Revenue Requirement (Projected Net Revenue Requirment tab, line 10) used by SPP (Attachment H, Westar Zone, column 3) for its billing. TransmissionFormulaRateUpdate-2009-rev20081029 October 15, 2008 - Results of the formula accepted subject to final Commission action on October 1, 2008 in Docket No. ER08-396. The results of the formula are based upon the historic period of 2007 with a fully forecasted test year of 2009. Results of this posting will become effective January 1, 2009. TransmissionFormulaRateUpdate-2009.xls Revenue Requirements for June 1, 2008 through December 31, 2008 Pursuant to the Settlement Agreement in ER08-396, the revenue requirements that were posted on May 23, 2008 and became effective June 1, 2008, will be used to calculate the Westar and Southwest Power Pool rates for the period from June 1, 2008 through December 31, 2008. The formula which produced those revenue requirements is show below. FormulaRateCalculation2008-Rev05232008.xls Protocols: Protocols effective October 1, 2008 Westar Formula Rate Protocols Accounting Manual: Accounting Manual 2008 Manual as of December 31, 2008 - (user id & password access only) Changes 2008 Formula Rate Customer Meeting Material: The Spring Customer meeting will be at the Westar Corporate offices, 10 am, on Tuesday June 23, 2009. Please contact Sheila Gropp if you have any questions or want more information. Data Request Submissions: Please submit all Data Requests related to Formula Rate updates to: Sheila Gropp 818 S. Kansas Ave. Topeka, KS 66612 Phone: (785)575-1129 Fax: (785)575-1798 email: Sheila.A.Gropp@westarenergy.com Posted: 6/15/09- dlr