Supplemental Cash Flow Information (Tables)

6 Months Ended

Jun. 30, 2011

Supplemental Cash Flow Information (Tables) [Abstract]

Reconciliation of Net Income to Net Cash Flows - Operating Activities follows

	UniSource Energy
	Six Months Ended
	June 30,
	2011			2010
	-Thousands of Dollars-
Net Income	$	41,990		$	46,032
Adjustments to Reconcile Net Income
To Net Cash Flows from Operating Activities:
Depreciation Expense		66,100			63,322
Amortization Expense		14,631			13,620
Depreciation and Amortization Recorded to Fuel and Other O&M Expense		2,879			2,586
Amortization of Deferred Debt-Related Costs Included in Interest Expense		2,070			1,773
Provision for Retail Customer Bad Debts		1,289			1,623
Use of Renewable Energy Credits for Compliance		3,623			—
Deferred Income Taxes		32,485			18,266
Deferred Tax Valuation Allowance		(73	)		3,214
Pension and Postretirement Expense		10,605			9,751
Pension and Postretirement Funding		(8,932	)		(3,529	)
Allowance for Equity Funds Used During Construction		(2,737	)		(1,802	)
Share-Based Compensation Expense		1,704			1,404
Excess Tax Benefit from Stock Options Exercised		(29	)		(826	)
CTC Revenue Refunded		(15,112	)		(5,339	)
Decrease to Reflect PPFAC/PGA Recovery Treatment		(3,008	)		(23,058	)
Loss on Millennium’s Investments		—			4,135
Changes in Assets and Liabilities which Provided (Used) Cash Exclusive of Changes Shown Separately:
Accounts Receivable		(9,572	)		(9,430	)
Materials and Fuel Inventory		(681	)		3,020
Accounts Payable		17,147			6,513
Income Taxes		(8,273	)		3,445
Interest Accrued		(1,360	)		1,515
Taxes Other Than Income Taxes		453			1,877
Other		3,913			6,878
Net Cash Flows — Operating Activities	$	149,112		$	144,990

	TEP
	Six Months Ended
	June 30,
	2011			2010
	-Thousands of Dollars-
Net Income	$	29,776		$	38,396
Adjustments to Reconcile Net Income
To Net Cash Flows from Operating Activities:
Depreciation Expense		51,583			48,953
Amortization Expense		16,484			15,810
Depreciation and Amortization Recorded to Fuel and Other O&M Expense		2,070			1,812
Amortization of Deferred Debt-Related Costs Included in Interest Expense		1,290			996
Provision for Retail Customer Bad Debts		905			1,093
Use of Renewable Energy Credits for Compliance		3,355			—
California Power Exchange Provision for Wholesale Revenue Refunds		—			2,970
Deferred Income Taxes		24,106			15,452
Pension and Postretirement Expense		9,410			8,653
Pension and Postretirement Funding		(8,168	)		(2,973	)
Share-Based Compensation Expense		1,330			1,088
Allowance for Equity Funds Used During Construction		(2,392	)		(1,554	)
CTC Revenue Refunded		(15,112	)		(5,339	)
Decrease to Reflect PPFAC Recovery Treatment		(7,671	)		(10,833	)
Changes in Assets and Liabilities which Provided (Used) Cash Exclusive of Changes Shown Separately:
Accounts Receivable		(21,954	)		(19,851	)
Materials and Fuel Inventory		329			1,898
Accounts Payable		24,616			14,216
Income Taxes		(8,292	)		6,601
Interest Accrued		(1,465	)		1,529
Taxes Other than Income Taxes		2,822			3,366
Other		3,243			8,286
Net Cash Flows — Operating Activities	$	106,265		$	130,569