8-K

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C.  20549

FORM 8-K

Current Report

Pursuant to Section 13 or 15(d) of the

Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): September 9, 2008

Commission File Number	Registrant, State of Incorporation, Address and Telephone Number	I.R.S. Employer Identification Number
001-32206	GREAT PLAINS ENERGY INCORPORATED	43-1916803
	(A Missouri Corporation)
	1201 Walnut Street
	Kansas City, Missouri  64106
	(816) 556-2200
	NOT APPLICABLE
(Former name or former address, if changed since last report)
000-51873	KANSAS CITY POWER & LIGHT COMPANY	44-0308720
	(A Missouri Corporation)
	1201 Walnut Street
	Kansas City, Missouri  64106
	(816) 556-2200
	NOT APPLICABLE
	(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

[  ]	Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
[  ]	Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
[  ]	Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act
	(17 CFR 240.14d-2(b))
[  ]	Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

This combined Current Report on Form 8-K is being filed by Great Plains Energy Incorporated (Great Plains Energy) and Kansas City Power & Light Company (KCP&L).  KCP&L is a wholly owned subsidiary of Great Plains Energy and represents a significant portion of its assets, liabilities, revenues, expenses and operations.  Thus, all information contained in this report relates to, and is filed by, Great Plains Energy.  Information that is specifically identified in this report as relating solely to Great Plains Energy, such as its financial statements and all information relating to Great Plains Energy’s other operations, businesses and subsidiaries, including Aquila, Inc., which does business as KCP&L Greater Missouri Operations Company (KCP&L GMO) does not relate to, and is not filed by, KCP&L.  KCP&L makes no representation as to that information.  Neither Great Plains Energy nor KCP&L GMO has any obligation in respect of KCP&L’s debt securities and holders of such securities should not consider Great Plains Energy’s or KCP&L GMO’s financial resources or results of operations in making a decision with respect to KCP&L’s debt securities.  Similarly, KCP&L has no obligation in respect of securities of Great Plains Energy or KCP&L GMO.

Item 7.01 Regulation FD Disclosure

On September 9, 2008, Great Plains Energy will conduct a webcast regarding the recently filed KCP&L and KCP&L GMO rate cases.  A copy of the presentation slides to be used in the webcast is attached hereto as Exhibit 99.1.   The presentation is scheduled for 2:00 p.m. Eastern Time on September 9, 2008. A webcast link and the presentation slides will be made available on Great Plains Energy’s website at www.greatplainsenergy.com.

The information under Item 7.01 and in Exhibit 99.1 hereto is being furnished and shall not be deemed filed for the purpose of Section 18 of the Securities Exchange Act of 1934, as amended.  The information under Item 7.01 and Exhibit 99.1 hereto shall not be incorporated by reference into any registration statement or other document pursuant to the Securities Act of 1933, as amended, unless otherwise indicated in such registration statement or other document.

Item 9.01	Financial Statements and Exhibits
(d) Exhibit No.
99.1	September 9, 2008, Investor Presentation on 2008 Rate Case Filings webcast slides (furnished and not deemed filed for the purpose of Section 18 of the Securities Exchange Act of 1934, as amended).

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

GREAT PLAINS ENERGY INCORPORATED

/s/ Terry Bassham

Terry Bassham

Executive Vice President- Finance & Strategic Development and Chief Financial Officer

KANSAS CITY POWER & LIGHT COMPANY

/s/ Terry Bassham

Terry Bassham

Chief Financial Officer

Date:  September 9, 2008

EX-99.1

Exhibit 99.1

Great Plains Energy
Investor Presentation on 2008 Rate
Case Filings

September 9, 2008

1

Statements made in this presentation that are not based on historical facts are forward-looking, may involve
risks and uncertainties, and are intended to be as of the date when made.Forward-looking statements include,
but are not limited to, the outcome of regulatory proceedings, cost estimates of the Comprehensive Energy Plan
and other matters affecting future operations.In connection with the safe harbor provisions of the Private
Securities Litigation Reform Act of 1995, the registrants are providing a number of important factors that could
cause actual results to differ materially from the provided forward-looking information.These important factors
include: future economic conditions in the regional, national and international markets, including but not limited
to regional and national wholesale electricity markets; market perception of the energy industry, Great Plains
Energy, Kansas City Power & Light Company (KCP&L) and Aquila, which is doing business as KCP&L Greater
Missouri Operations Company (KCP&L GMO); changes in business strategy, operations or development plans;
effects of current or proposed state and federal legislative and regulatory actions or developments, including, but
not limited to, deregulation, re-regulation and restructuring of the electric utility industry; decisions of regulators
regarding rates KCP&L and KCP&L GMO can charge for electricity; adverse changes in applicable laws,
regulations, rules, principles or practices governing tax, accounting and environmental matters including, but not
limited to, air and water quality; financial market conditions and performance including, but not limited to,
changes in interest rates and credit spreads and in availability and cost of capital and the effects on pension plan
assets and costs; credit ratings; inflation rates; effectiveness of risk management policies and procedures and
the ability of counterparties to satisfy their contractual commitments; impact of terrorist acts; increased
competition including, but not limited to, retail choice in the electric utility industry and the entry of new
competitors; ability to carry out marketing and sales plans; weather conditions including weather-related
damage; cost, availability, quality and deliverability of fuel; ability to achieve generation planning goals and the
occurrence and duration of planned and unplanned generation outages; delays in the anticipated in-service dates
and cost increases of additional generating capacity and environmental projects; nuclear operations; workforce
risks, including retirement compensation and benefits costs; the ability to successfully integrate KCP&L and
KCP&L GMO operations and the timing and amount of resulting synergy savings; and other risks and
uncertainties. Other risk factors are detailed from time to time in Great Plains Energy’s and KCP&L’s most recent
quarterly reports on Form 10-Q or Annual Reports on Form 10-K filed with the Securities and Exchange
Commission.This list of factors is not all-inclusive because it is not possible to predict all factors.

Forward Looking Statement

Great Plains Energy
Investor Presentation on 2008 Rate
Case Filings

September 9, 2008

Terry Bassham, CFO
Executive Vice President
Finance & Strategic Development

3

Business Week July 24, 2008

Missouri and Kansas Rates Below
National Average

4

• 2006 rate cases for KCP&L included 100 MW of new wind generation in rate base

• KCP&L 2007 cases included La Cygne Unit 1 SCR in rate base

• KCP&L reached settlements in Kansas in both 2006 and 2007

 >  Energy cost adjustment approved in 2007 case

 >  Energy efficiency rider approved in 2007 case

• MPS and L&P 2007 cases included Fuel Adjustment Clause for 95%

recoverability of fuel costs over base amount

Recent Rate Case Outcomes

5

• Requested ROE reasonable based on extensive cost of capital analysis

• Capital structure based on Great Plains Energy consolidated capital structure

 > Excludes short-term debt

 >Per the Aquila transaction approval, Kansas filing excludes Aquila cap structure

impact and synergies

Summary of Rate Cases

6

Requested Capital Structure - Missouri

Requested Capital Structure - Kansas

Note *1:Cost of debt varies by case as follows:

KCPL MO- 6.32%, GMO MPS- 6.851%, GMO L&P (electric and steam)- 7.634%

Requested Capital Structure

7

$1.0

$4.3

$1.5

KCP&L GMO

$2.8

KCP&L

$2.4

$1.1

$2.3

Rate Cases Filed

8/5/2008

KCP&L Historical Rate Base

Aquila (KCP&L GMO)

Historical Rate Base

Rates Effective

1/1/2007

Rates Effective

1/1/2008

Rates Effective

5/31/2007

Rates Effective

3/1/2006

Projected Combined Rate Base

March 31, 2009

(in billions)

Rate Base Growth

8

Spearville Wind Energy Facility

ü100MW completed on schedule and under budget

LaCygne

üPhase 1: Unit 1 SCR - Completed on schedule, under budget, and
performing per specification

•Phase 2: Unit 1 - bag house and scrubber environmental upgrades:

 >  Project Definition Report completed in Q3 2007

 >  Evaluating upgrade of Unit 2 at the same time

Iatan Unit 1

üExpected to be in-service early 2009

Iatan Unit 2 Construction

•Expected to be in-service summer 2010.

Comprehensive Energy Plan

9

70%

30%

CEPBreakdown

• Rate increase of 17.5% or $71.6 million based on test year base revenues

of approximately $409 million (excluding fuel expense recovered through

the energy cost adjustment mechanism)

• Utilizes calendar 2007 test year with April 30, 2009 true-up of plant; rates
effective July 5, 2009

• No synergy amounts required to be shared in this filing

Docket number 09-KCPE-246-RTS

KCP&L (KS) Rate Case

10

66%

34%

CEPBreakdown

• Rate increase of 17.5% or $101.5 million based on test year base revenues

of approximately $580 million

• Utilizes calendar 2007 test year, with update based on October 31, 2008

financials and true-up as of April 30, 2009

• Synergies from Aquila transaction begin to flow to customers

Docket number ER-2009-0089

KCP&L (MO) Rate Case

11

• The amount of the GMO (MPS) rate increase is 14.4% or $66.0 million

based on test year revenue of approximately $460 million

• Continuation of fuel adjustment clause

Docket number ER-2009-0090

KCP&L GMO (MPS) Rate Case

12

•13.6% rate increase or $17.1 million based on test year revenues of
approximately $125 million

•Continuation of fuel adjustment clause

Docket number ER-2009-0090

KCP&L GMO (L&P Electric) Rate Case

13

•Requested rate increase of7.7% or $1.3 million based on test
year base revenue of approximately $17 million

•Requesting to continue the Quarterly Cost Adjustment (QCA) for
fuel, but proposing to change the base amounts included in the
tariff and to modify the recovery adjustment to reflect 100%
recovery of the incremental costs

Docket number ER-2009-0091

KCP&L GMO (L&P Steam) Rate Case

14

Applications filed
with MPSC

Sept.5, 2008

Staff conducts audit
of entire operations

Now - - March 2009

Update of revenue
requirement model
based on Oct. 31,
2008.Submitted
approx. Jan. 1, 2009

Staff and interveners
file

March 2009

Rebuttal testimony

March 2009

Pre-hearing
conference

April 2009

True-up of revenue
requirement model
based on April 30,
2009 & submitted
earlyJune 2009

Hearings

May 2009

Briefs

June 2009

Decision

July 2009

Rates implemented

August 5, 2009

Projected Missouri Regulatory Timeline

Great Plains Energy
Investor Presentation on 2008 Rate
Case Filings

September 9, 2008