Schedule II-Valuation and Qualifying Accounts

12 Months Ended

Dec. 31, 2010

Schedule II-Valuation and Qualifying Accounts [Abstract]

Schedule II-Valuation and Qualifying Accounts

UIL Holdings Corporation

Schedule II - Valuation and Qualifying Accounts

For the Years Ended December 31, 2011, 2010 and 2009

(Thousands of Dollars)

Col. A.		Col. B.		Col. C.		Col. D.				Col. E.			Col. F.
						Additions
Classification		Balance at Beginning of Period		Acquired Balance		Charged to Costs and Expenses		Charged to Other Accounts		Deductions			Balance at End of Period
RESERVE DEDUCTION FROM ASSETS TO WHICH IT APPLIES:
Reserve for uncollectible accounts (consolidated):
	2011	$	10,571	$	-	$	32,829	$	-	$	32,461	(A)	$	10,939
	2010	$	4,500	$	9,051	$	17,479	$	-	$	20,459	(A)	$	10,571
	2009	$	4,500	$	-	$	22,176	$	-	$	22,176	(A)	$	4,500

(A) Accounts written off, net of recoveries