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Exhibit 12.1


Computation of Ratio of Earnings to Fixed Charges
Atlantic Power Corporation

        The following table sets forth ratio of earnings to fixed charges for the periods indicated below.

 
  Year Ended
December 31,
2011
  Year Ended
December 31,
2010
  Year Ended
December 31,
2009
  Year Ended
December 31,
2008
  Year Ended
December 31,
2007
  Three Months
Ended March 31,
2012
 

Earnings (loss) before taxes

  $ (43,965 ) $ 15,069   $ (54,179 ) $ 34,541   $ (13,491 ) $ (55,505 )

Loss attributable to noncontrolling interest

    (480 )   (103 )               (161 )

Distributions from equity investments

    21,889     16,843     27,884     41,031     46,653     249  

Fixed charges (from below)

    46,051     29,361     74,498     60,984     57,523     29,069  
                           

  $ 23,495   $ 61,170   $ 48,203   $ 136,556   $ 90,685   $ (26,348 )

Interest Expense

                                     

Project level interest

  $ 20,053   $ 17,660   $ 18,800   $ 17,709   $ 13,216   $ 7,033  

Corporate level interest

    25,998     11,701     55,698     43,275     44,307     22,036  
                           

  $ 46,051   $ 29,361   $ 74,498   $ 60,984   $ 57,523   $ 29,069  

Ratio of earnings

    0.51     2.08     0.65     2.24     1.58     (0.91 )

        Our ratio of earnings to fixed charges is computed by dividing earnings by fixed charges. For these purposes, "earnings" is the amount resulting from adding together earnings (loss) before taxes, fixed charges, and distributions from equity investments and subtracting losses attributable to noncontrolling interests. "Fixed charges" is the amount resulting from adding together project level interest and corporate level interest expenses.




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Computation of Ratio of Earnings to Fixed Charges Atlantic Power Corporation