Exhibit 12.1
											2/24/2009
MISSISSIPPI POWER COMPANY
Computation of ratio of earnings to fixed charges for
the five years ended December 31, 2008
	Year ended December 31,
			2004		2005		2006		2007		2008
	--------------------------------------------------Thousands of Dollars--------------------------------------------------
EARNINGS AS DEFINED IN ITEM 503 OF REGULATION S-K:
Earnings before income taxes		$	131,299	$	121,915	$	131,840	$	137,594	$	136,042
Interest expense, net of amounts capitalized			13,724		13,828		18,639		18,158		17,978
Distributions on mandatorily redeemable preferred securities			630		0		0		0		0
AFUDC - Debt funds			0		0		0		12		229
Earnings as defined		$	145,653	$	135,743	$	150,479	$	155,764	$	154,249
FIXED CHARGES AS DEFINED IN ITEM 503 OF REGULATION S-K:
Interest on long-term debt		$	9,067	$	10,490	$	11,808	$	12,441	$	15,467
Interest on affiliated loans			2,218		3,284		3,882		4,095		730
Interest on interim obligations			0		437		1,425		0		0
Amort of debt disc, premium and expense, net			1,080		1,111		1,060		1,055		1,204
Other interest charges			1,359		(1,494)		464		579		806
Distributions on mandatorily redeemable preferred securities			630		0		0		0		0
Fixed charges as defined		$	14,354	$	13,828	$	18,639	$	18,170	$	18,207
RATIO OF EARNINGS TO FIXED CHARGES			10.15		9.82		8.07		8.57		8.47