TXU Energy Retail S-4 Registration of securities issued in business combination transactions

Exhibit 12 (a)

ENERGY FUTURE COMPETITIVE HOLDINGS COMPANY.

COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES,

AND RATIO OF EARNINGS TO COMBINED FIXED CHARGES AND PREFERENCE DIVIDENDS

	Successor			Predecessor
	Period from October 11, 2007 through December 31, 2007			Period from January 1, 2007 through October 10, 2007		Year Ended December 31,
						2006		2005		2004		2003
EARNINGS:
Income (loss) from continuing operations before extraordinary gain/(loss) and cumulative effect of changes in accounting principles	$	(1,266	)	$	1,306	$	2,501	$	1,816	$	672	$	736
Add: Total federal income tax expense (benefit)		(675	)		618		1,306		882		282		348
Fixed charges (see detail below)		717			393		387		668		651		665
Preferred dividends of subsidiaries		—			—		—		—		—		—
Total earnings (loss)	$	(1,224	)	$	2,317	$	4,194	$	3,366	$	1,605	$	1,749
FIXED CHARGES:
Interest expense	$	711		$	369	$	364	$	633	$	607	$	616
Rentals representative of the interest factor		6			24		23		35		44		49
Fixed charges deducted from earnings		717			393		387		668		651		665
Preferred dividends of subsidiaries (pretax) (a)		—			—		—		—		—		—
Total fixed charges		717			393		387		668				665
Preference dividends of registrant (pretax) (a)		—			—		—		4		3		7
Fixed charges and preference dividends	$	717		$	393	$	387	$	672	$	654	$	672
RATIO OF EARNINGS TO FIXED CHARGES (b)		—			5.90		10.84		5.04		2.47		2.63
RATIO OF EARNINGS TO COMBINED FIXED CHARGES AND PREFERENCE DIVIDENDS (b)		—			5.90		10.84		5.01		2.45		2.60

	Successor			Predecessor
	Six Months Ended June 30, 2008			Six Months Ended June 30, 2007
EARNINGS:
Income (loss) from continuing operations before extraordinary gain/(loss) and cumulative effect of changes in accounting principles	$	(4,528	)	$	232
Add: Total federal income tax expense (benefit)		(2,480	)		47
Fixed charges (see detail below)		1,469			233
Total earnings (loss)	$	(5,539	)	$	512
FIXED CHARGES:
Interest expense	$	1,456		$	221
Rentals representative of the interest factor		13			12
Fixed charges deducted from earnings		1,469			233
Preferred dividends of subsidiaries (pretax) (a)		—			—
Total fixed charges		1,469			233
Preference dividends of registrant (pretax) (a)		—			—
Fixed charges and preference dividends	$	1,469		$	233
RATIO OF EARNINGS TO FIXED CHARGES (b)		—			2.20
RATIO OF EARNINGS TO COMBINED FIXED CHARGES AND PREFERENCE DIVIDENDS (b)		—			2.20

(a) Preferred/preference dividends multiplied by the ratio of pretax income to net income.

(b) For the period from October 11, 2007 through December 31, 2007, fixed charges and combined fixed charges and preference dividends exceeded earnings by $1.941 billion. For the six months ended June 30, 2008, fixed charges and combined fixed charges and preference dividends exceeded earnings by $7.008 billion.