EXHIBIT 7.1 AES DRAX HOLDINGS LIMITED ------------------------------------------------------------------------------------------------------ Ratio of Earnings to Fixed Charges ------------------------------------------------------------------------------------------------------ 1999(1) 1999(1) 2000(2) 2000(2) 2001(2) 2001(2) 2002(2) 2002(2) UK GAAP US GAAP UK GAAP US GAAP UK GAAP US GAAP UK GAAP US GAAP (pound),000 (pound),000 (pound),000 (pound),000 (pound),000 (pound),000 (pound),000 (pound),000 Income/(loss) from continuing operations before income 17,638 20,308 33,950 87,118 (7,970) 18,342 (751,051) (129,732) taxes Fixed Charges: Interest on long-term and short-term debt including 13,158 16,356 156,319 156,319 170,788 126,914 180,087 131,717 amortization of debt expense Total fixed charges 13,158 16,356 156,319 156,319 170,788 126,914 180,087 131,717 Earnings before income taxes and fixed charges 30,796 36,664 190,269 243,437 162,818 145,256 (570,964) 1,985 Ratio of earnings to fixed charges 2.34 2.24 1.22 1.56 0.95 1.14 (3.17) 0.02 (1) Seven week period to 31 December 1999 (2) Year ended 31 December