Exhibit
      12.1GREAT
      PLAINS ENERGYCOMPUTATION
      OF RATIO OF EARNINGS TO FIXED CHARGESThree
      Months EndedMarch
      312009
                                                                                                                                                                                                                                                                                                          2008
                                                                                                                                                                                                                                                                                                          2007
                                                                                                                                                                                                                                                                                                          2006
                                                                                                                                                                                                                                                                                                          2005
                                                                                                                                                                                                                                                                                                          2004(millions)Income
      from continuing operations
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          $
                                                                                                                                                                                                                                                                                                          21.7
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          $
                                                                                                                                                                                                                                                                                                          119.5
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          $
                                                                                                                                                                                                                                                                                                          120.9
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          $
                                                                                                                                                                                                                                                                                                          136.7
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          $
                                                                                                                                                                                                                                                                                                          135.1
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          $
                                                                                                                                                                                                                                                                                                          132.3AddMinority
      interests in subsidiaries
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          -
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          0.2
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          -
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          -
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          7.8
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          (5.1
                                                                                                                                                                                                                                                                                                          )Equity
      investment loss
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          0.1
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          1.3
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          2.0
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          1.9
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          0.4
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          1.5Income
      subtotal
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          21.8
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          121.0
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          122.9
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          138.6
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          143.3
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          128.7AddTaxes
      on income
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          (26.3
                                                                                                                                                                                                                                                                                                          )
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          63.8
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          44.9
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          60.3
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          22.2
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          30.7Kansas
      City earnings tax
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          -
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          0.3
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          0.5
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          0.5
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          0.5
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          0.5Total
      taxes on income
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          (26.3
                                                                                                                                                                                                                                                                                                          )
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          64.1
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          45.4
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          60.8
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          22.7
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          31.2Interest
      on value of leased property
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          1.8
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          3.6
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          3.9
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          4.1
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          6.2
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          6.2Interest
      on long-term debt
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          40.9
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          126.2
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          74.1
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          62.6
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          64.3
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          66.1Interest
      on short-term debt
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          3.9
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          18.2
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          26.4
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          9.2
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          4.5
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          4.3Other
      interest expense and amortization (a)
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          2.1
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          (1.4
                                                                                                                                                                                                                                                                                                          )
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          5.8
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          3.9
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          4.3
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          13.6Total
      fixed charges
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          48.7
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          146.6
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          110.2
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          79.8
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          79.3
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          90.2Earnings
      before taxes onincome
      and fixed charges
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          $
                                                                                                                                                                                                                                                                                                          44.2
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          $
                                                                                                                                                                                                                                                                                                          331.7
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          $
                                                                                                                                                                                                                                                                                                          278.5
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          $
                                                                                                                                                                                                                                                                                                          279.2
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          $
                                                                                                                                                                                                                                                                                                          245.3
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          $
                                                                                                                                                                                                                                                                                                          250.1Ratio
      of earnings to fixed charges
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          (b)
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          2.26
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          2.53
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          3.50
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          3.09
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                                                                                          2.77(a)
                                                                                                                                                                                                                                                                                                          On
      January 1, 2007, Great Plains Energy adopted FIN No. 48, "Accounting for
      Uncertainty in Income Taxes," andalong
      with the adoption elected to make an accounting policy change to recognize
      interest related to uncertain taxpositions
      in interest expense.(b)
                                                                                                                                                                                                                                                                                                          A
      $4.5 million deficiency in earnings caused the ratio of earnings to fixed
      charges to be less than a one-to-one
coverage.