Exhibit 12 SCANA CORPORATION CALCULATIONS OF BOND RATIO FOR THE YEAR ENDED DECEMBER 31, 1996 (Thousands of Dollars) Net earnings(1) $408,299 Divide by annualized interest charges on: Bonds authenticated under the Company's First and Refunding Mortgage Bond Indenture $36,336 Other indebtedness(1) $57,137 Total annualized interest charges $ 93,473 Bond ratio 4.37 (1) As defined under the Company's First and Refunding Mortgage Bond Indenture (Old Mortgage). 79 SCANA CORPORATION CALCULATION OF NEW BOND RATIO FOR THE YEAR ENDED DECEMBER 31, 1996 (Thousands of Dollars) Net earnings(1) $551,360 Divide by annualized interest charges on: Bonds authenticated under the Company's First Mortgage Bond Indenture $57,137 Other indebtedness(1) $36,336 Total annualized interest charges $ 93,473 New Bond Ratio 5.90 (1) As defined under the Company's Collateral Trust Mortgage Indenture (New Mortgage). 80 SCANA CORPORATION CALCULATIONS OF PREFERRED STOCK RATIO FOR THE YEAR ENDED DECEMBER 31, 1996 (Thousands of Dollars) Net Earnings (1) $294,998 Divide by annualized interest charges on: Bonds authenticated under SCE&G's mortgage bond indentures $93,473 Other indebtedness (1) $ 6,416 Preferred Dividend Requirements $ 5,372 Total annualized interest charges $105,261 Preferred stock ratio 2.80 (1) As defined under SCE&G's Restated Articles of Incorporation. 81 SCANA CORPORATION COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES For Each of the Five Years Ended December 31, 1996 (Thousands of Dollars) Years Ended December 31, 1996 1995 1994 1993 1992 Fixed Charges as defined: Interest on long-term debt.................. $112,313 $113,882 $106,573 $ 96,916 $ 92,178 Amortization of debt premium, discount and expense (net).............................. 2,641 2,486 2,231 1,779 874 Other interest expense...................... 13,283 17,102 6,749 8,672 8,819 Interest component of rentals............... 2,277 2,771 2,717 2,853 929 Total Fixed Charges (A)................. $130,514 $136,241 $118,270 $110,220 $102,800 Earnings, as defined: Income...................................... $220,719 $174,026 $121,407 $171,457 $124,140 Income taxes................................ 119,059 99,116 62,488 90,714 60,291 Total fixed charges above................... 130,514 136,241 118,270 110,220 102,800 Total Earnings (B)...................... $470,292 $409,383 $302,165 $372,391 $287,231 Ratio of Earnings to fixed charges (B/A)...... 3.60 3.00 2.55 3.38 2.79 82