Centerpoint Energy Houston Electric 10-Q 2007 Q3 Quarterly report

Exhibit 12

CENTERPOINT ENERGY HOUSTON ELECTRIC, LLC AND SUBSIDIARIES
(AN INDIRECT WHOLLY OWNED SUBSIDIARY OF CENTERPOINT ENERGY, INC.)

COMPUTATION OF RATIOS OF EARNINGS TO FIXED CHARGES
(Millions of Dollars)

	Nine Months Ended
	September 30,
	2006			2007
Net Income	$	233		$	223
Income taxes		114			111
Interest included in income taxes		—			(3	)
Capitalized interest		(3	)		(8	)
		344			323
Fixed charges, as defined:
Interest		181			174
Interest included in income taxes		—			3
Capitalized interest		3			8
Interest component of rentals charged to operating income		1			1
Total fixed charges		185			186
Earnings, as defined	$	529		$	509
Ratio of earnings to fixed charges		2.85			2.74