<TABLE>
                                                                                                                    EXHIBIT 12.2
                           MIDAMERICAN ENERGY COMPANY
               COMPUTATION OF RATIOS OF EARNINGS TO FIXED CHARGES
             AND COMPUTATION OF RATIOS OF EARNINGS TO FIXED CHARGES
                   PLUS PREFERRED STOCK DIVIDEND REQUIREMENTS
                                 (IN THOUSANDS)
                                   (UNAUDITED)
<CAPTION>

                                                                    TWELVE MONTHS ENDED                TWELVE MONTHS ENDED
                                                                    SEPTEMBER 30, 1997                    DECEMBER 31, 1996        
                                                             --------------------------------   --------------------------------
                                                                           Supplemental (a)                     Supplemental (a)
                                                                       ----------------------             ----------------------
                                                                                         As                                As
                                                                       Adjustment    Adjusted             Adjustment    Adjusted
                                                                       ----------   ---------             ----------   ---------
<S>                                                          <C>            <C>     <C>         <C>            <C>     <C>      
Income from continuing operations ........................   $154,510        --     $154,510    $165,132        --     $165,132

Add (Deduct):
Total income taxes .......................................    100,426        --      100,426     112,927        --      112,927
Interest on long-term debt ...............................     77,655       3,397     81,052      79,434       3,615     83,049
Other interest charges ...................................     10,486        --       10,486      10,842        --       10,842
Preferred stock dividends of subsidiary trust ............      6,273        --        6,273         288        --          288
Interest on leases .......................................        288        --          288         375        --          375
                                                             --------       -----   --------    --------       -----   --------
                                                              195,128       3,397    198,525     203,866       3,615    207,481
                                                             --------       -----   --------    --------       -----   --------
  Earnings available for fixed charges ...................    349,638       3,397    353,035     368,998       3,615    372,613
                                                             --------       -----   --------    --------       -----   --------

Fixed Charges:
Interest on long-term debt ...............................     77,655       3,397     81,052      79,434       3,615     83,049
Other interest charges ...................................     10,486        --       10,486      10,842        --       10,842
Preferred stock dividends of subsidiary trust ............      6,273        --        6,273         288        --          288
Interest on leases .......................................        288        --          288         375        --          375
                                                             --------       -----   --------    --------       -----   --------
  Total fixed charges ....................................     94,702       3,397     98,099      90,939       3,615     94,554
                                                             --------       -----   --------    --------       -----   --------

Ratio of earnings to fixed charges .......................       3.69        --         3.60        4.06        --         3.94
                                                             ========       =====   ========    ========       =====   ========

Preferred stock dividends of subsidiary ..................   $  8,902        --     $  8,902    $ 10,401        --     $ 10,401
Ratio of net income before income taxes to net income ....     1.6500        --       1.6500      1.6839        --       1.6839
                                                             --------       -----   --------    --------       -----   --------
Preferred stock dividend requirements before income tax ..     14,688        --       14,688      17,514        --       17,514
                                                             --------       -----   --------    --------       -----   --------
Fixed charges plus preferred stock dividend requirements .    109,390       3,397    112,787     108,453       3,615    112,068
                                                             --------       -----   --------    --------       -----   --------

Ratio of earnings to fixed charges plus preferred stock
  dividend requirements (pre-income tax basis) ...........       3.20        --         3.13        3.40        --         3.32
                                                             ========       =====   ========    ========       =====   ========
</TABLE>

Note:  (a) Amounts in the  supplemental  columns  are to reflect  the  Company's
     portion of the net interest  component of payments to Nebraska Public Power
     District  under a long-term  purchase  agreement  for one-half of the plant
     capacity from Cooper Nuclear Station.

                                      -1-
<PAGE>
<TABLE>
                                                                                                                    EXHIBIT 12.2
                           MIDAMERICAN ENERGY COMPANY
               COMPUTATION OF RATIOS OF EARNINGS TO FIXED CHARGES
             AND COMPUTATION OF RATIOS OF EARNINGS TO FIXED CHARGES
                   PLUS PREFERRED STOCK DIVIDEND REQUIREMENTS
                                 (IN THOUSANDS)
                                   (UNAUDITED)
<CAPTION>

                                                                    TWELVE MONTHS ENDED                TWELVE MONTHS ENDED
                                                                     DECEMBER 31, 1995                  DECEMBER 31, 1994        
                                                             --------------------------------   --------------------------------
                                                                           Supplemental (a)                     Supplemental (a)
                                                                       ----------------------             ----------------------
                                                                                         As                                As
                                                                       Adjustment    Adjusted             Adjustment    Adjusted
                                                                       ----------   ---------             ----------   ---------
<S>                                                          <C>            <C>     <C>         <C>            <C>     <C>      
Income from continuing operations ........................   $132,489        --     $132,489    $121,145        --     $121,145

Add (Deduct):
Total income taxes .......................................     84,098        --       84,098      66,759        --       66,759
Interest on long-term debt ...............................     80,133       4,595     84,728      73,922       5,428     79,350
Other interest charges ...................................      9,396        --        9,396       6,639        --        6,639
Preferred stock dividends of subsidiary trust ............       --          --         --          --          --         --
Interest on leases .......................................      1,088        --        1,088       1,211        --        1,211
                                                             --------       -----   --------    --------       -----   --------
                                                              174,715       4,595    179,310     148,531       5,428    153,959
                                                             --------       -----   --------    --------       -----   --------
  Earnings available for fixed charges ...................    307,204       4,595    311,799     269,676       5,428    275,104
                                                             --------       -----   --------    --------       -----   --------

Fixed Charges:
Interest on long-term debt ...............................     80,133       4,595     84,728      73,922       5,428     79,350
Other interest charges ...................................      9,396        --        9,396       6,639        --        6,639
Preferred stock dividends of subsidiary trust ............       --          --         --          --          --         --
Interest on leases .......................................      1,088        --        1,088       1,211        --        1,211
                                                             --------       -----   --------    --------       -----   --------
  Total fixed charges ....................................     90,617       4,595     95,212      81,772       5,428     87,200
                                                             --------       -----   --------    --------       -----   --------

Ratio of earnings to fixed charges .......................       3.39        --         3.27        3.30        --         3.15
                                                             ========       =====   ========    ========       =====   ========

Preferred stock dividends of subsidiary ..................   $  8,059        --     $  8,059    $ 10,551        --     $ 10,551
Ratio of net income before income taxes to net income ....     1.6348        --       1.6348      1.5511        --       1.5511
                                                             --------       -----   --------    --------       -----   --------
Preferred stock dividend requirements before income tax ..     13,175        --       13,175      16,366        --       16,366
                                                             --------       -----   --------    --------       -----   --------
Fixed charges plus preferred stock dividend requirements .    103,792       4,595    108,387      98,138       5,428    103,566
                                                             --------       -----   --------    --------       -----   --------

Ratio of earnings to fixed charges plus preferred stock
  dividend requirements (pre-income tax basis) ...........       2.96        --         2.88        2.75        --         2.66
                                                             ========       =====   ========    ========       =====   ========
</TABLE>

Note:  (a) Amounts in the  supplemental  columns  are to reflect  the  Company's
     portion of the net interest  component of payments to Nebraska Public Power
     District  under a long-term  purchase  agreement  for one-half of the plant
     capacity from Cooper Nuclear Station.

                                      -2-
<PAGE>
<TABLE>
                                                                                                                    EXHIBIT 12.2
                           MIDAMERICAN ENERGY COMPANY
               COMPUTATION OF RATIOS OF EARNINGS TO FIXED CHARGES
             AND COMPUTATION OF RATIOS OF EARNINGS TO FIXED CHARGES
                   PLUS PREFERRED STOCK DIVIDEND REQUIREMENTS
                                 (IN THOUSANDS)
                                   (UNAUDITED)
<CAPTION>

                                                                    TWELVE MONTHS ENDED                TWELVE MONTHS ENDED
                                                                     DECEMBER 31, 1993                  DECEMBER 31, 1992        
                                                             --------------------------------   --------------------------------
                                                                           Supplemental (a)                     Supplemental (a)
                                                                       ----------------------             ----------------------
                                                                                         As                                As
                                                                       Adjustment    Adjusted             Adjustment    Adjusted
                                                                       ----------   ---------             ----------   ---------
<S>                                                          <C>            <C>     <C>         <C>            <C>     <C>      
Income from continuing operations ........................   $133,888        --     $133,888    $ 86,713        --     $ 86,713

Add (Deduct):
Total income taxes .......................................     75,917        --       75,917      39,144        --       39,144
Interest on long-term debt ...............................     80,642       5,678     86,320      87,233       7,391     94,624
Other interest charges ...................................      5,068        --        5,068       4,373        --        4,373
Preferred stock dividends of subsidiary trust ............       --          --         --          --          --         --
Interest on leases .......................................      1,876        --        1,876       2,386        --        2,386
                                                             --------       -----   --------    --------       -----   --------
                                                              163,503       5,678    169,181     133,136       7,391    140,527
                                                             --------       -----   --------    --------       -----   --------
  Earnings available for fixed charges ...................    297,391       5,678    303,069     219,849       7,391    227,240
                                                             --------       -----   --------    --------       -----   --------

Fixed Charges:
Interest on long-term debt ...............................     80,642       5,678     86,320      87,233       7,391     94,624
Other interest charges ...................................      5,068        --        5,068       4,373        --        4,373
Preferred stock dividends of subsidiary trust ............       --          --         --          --          --         --
Interest on leases .......................................      1,876        --        1,876       2,386        --        2,386
                                                             --------       -----   --------    --------       -----   --------
  Total fixed charges ....................................     87,586       5,678     93,264      93,992       7,391    101,383
                                                             --------       -----   --------    --------       -----   --------

Ratio of earnings to fixed charges .......................       3.40        --         3.25        2.34        --         2.24
                                                             ========       =====   ========    ========       =====   ========

Preferred stock dividends of subsidiary ..................   $  8,367        --     $  8,367    $  8,735        --     $  8,735
Ratio of net income before income taxes to net income ....     1.5670        --       1.5670      1.4514        --       1.4514
                                                             --------       -----   --------    --------       -----   --------
Preferred stock dividend requirements before income tax ..     13,111        --       13,111      12,678        --       12,678
                                                             --------       -----   --------    --------       -----   --------
Fixed charges plus preferred stock dividend requirements .    100,697       5,678    106,375     106,670       7,391    114,061
                                                             --------       -----   --------    --------       -----   --------

Ratio of earnings to fixed charges plus preferred stock
  dividend requirements (pre-income tax basis) ...........       2.95        --         2.85        2.06        --         1.99
                                                             ========       =====   ========    ========       =====   ========
</TABLE>

Note:  (a) Amounts in the  supplemental  columns  are to reflect  the  Company's
     portion of the net interest  component of payments to Nebraska Public Power
     District  under a long-term  purchase  agreement  for one-half of the plant
     capacity from Cooper Nuclear Station.

                                      -3-