CONSOLIDATED STATEMENTS OF CASH FLOWS (Baltimore Gas and Electric Company) (USD $) In Millions	9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010
Adjustments to reconcile to net cash provided by operating activities
Depreciation and amortization	$ 449.6	$ 380.6
Other amortization	28.0	23.4
Deferred income taxes	140.8	(989.0)
Investment tax credit adjustments	(3.2)	(3.4)
Deferred fuel costs	20.0	69.2
Deferred storm costs	(15.5)
Defined benefit plan expenses	62.1	51.2
Changes in:
Materials, supplies, and fuel stocks	10.8	39.8
Other current assets	80.5	(64.8)
Accounts payable	(207.7)	(21.1)
Other current liabilities	2.1	(1,110.7)
Net cash provided by (used in) operating activities	1,353.2	(20.6)
Cash Flows From Investing Activities
Proceeds from U.S. Department of Energy grants	40.6	42.7
Proceeds from sales of investments and other assets	6.6	93.8
Decrease (increase) in restricted funds	30.9	(79.0)
Net cash used in investing activities	(2,195.8)	(1,267.5)
Cash Flows From Financing Activities
Repayment of long-term debt	(253.2)	(632.1)
Credit facility costs	(3.2)	(0.7)
Preference stock dividends paid	(9.9)	(9.9)
Net cash used in financing activities	(14.9)	(856.7)
Proceeds from issuance of long-term debt	235.1
Net Increase in Cash and Cash Equivalents	(857.5)	(2,144.8)
Cash and Cash Equivalents at Beginning of Period	2,028.5	3,440.0
Cash and Cash Equivalents at End of Period	1,171.0	1,295.2
Baltimore Gas and Electric Company
Cash Flows From Operating Activities
Net income	99.3	113.2
Adjustments to reconcile to net cash provided by operating activities
Depreciation and amortization	203.1	181.0
Other amortization	5.4	3.3
Deferred income taxes	93.7	97.0
Investment tax credit adjustments	(0.8)	(0.8)
Deferred fuel costs	20.0	69.2
Deferred storm costs	(15.5)
Defined benefit plan expenses	31.2	26.0
Allowance for equity funds used during construction	(10.7)	(7.7)
Changes in:
Accounts receivable	121.0	6.1
Accounts receivable, affiliated companies	(0.5)	13.5
Materials, supplies, and fuel stocks	(20.0)	(10.1)
Income tax receivable, net	55.9
Other current assets	(92.1)	(88.9)
Accounts payable	(61.5)	21.6
Accounts payable, affiliated companies	(21.3)	(12.1)
Other current liabilities	43.5	(14.6)
Long-term receivables and payables, affiliated companies	3.5	(22.5)
Regulatory assets, net	13.1	21.6
Other	(52.5)	(61.2)
Net cash provided by (used in) operating activities	414.8	334.6
Cash Flows From Investing Activities
Utility construction expenditures (excluding equity portion of allowance for funds used during construction)	(444.6)	(365.7)
Proceeds from U.S. Department of Energy grants	40.6	42.7
Change in cash pool at parent		314.7
Proceeds from sales of investments and other assets		20.9
Decrease (increase) in restricted funds	(22.2)	(26.0)
Net cash used in investing activities	(426.2)	(13.4)
Cash Flows From Financing Activities
Repayment of long-term debt	(29.7)	(28.1)
Issuance (repayment) of short-term borrowings	140.0	(46.0)
Credit facility costs	(2.7)	(0.3)
Preference stock dividends paid	(9.9)	(9.9)
Distribution to parent	(85.0)
Net cash used in financing activities	12.7	(84.3)
Net Increase in Cash and Cash Equivalents	1.3	236.9
Cash and Cash Equivalents at Beginning of Period	50.0	13.6
Cash and Cash Equivalents at End of Period	$ 51.3	$ 250.5