CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) (USD $) In Thousands	6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010
Operating activities:
Net income (loss)	$ 112,466	$ (15,528)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation	148,361	144,654
Amortization	36,423	34,655
Conservation amortization	56,084	40,482
Deferred income taxes and tax credits, net	43,278	26,467
Net unrealized (gain) loss on derivative instruments	(23,542)	45,908
Long-term service prepayment	(18,200)	0
Pension funding	(5,000)	(12,000)
Derivative contracts classified as financing activities due to merger	123,951	222,858
Other	40,124	27,893
Change in certain current assets and liabilities:
Accounts receivable and unbilled revenue	169,838	181,652
Materials and supplies	6,416	(13,503)
Fuel and gas inventory	28,880	681
Income taxes	63,893	(5,786)
Prepayments and other	(2,154)	(2,319)
Purchased gas adjustment	18,716	(42,207)
Accounts payable	(51,557)	(41,413)
Taxes payable	(6,726)	(11,816)
Accrued expenses and other	116	1,148
Net cash provided by operating activities	741,367	581,826
Investing activities:
Construction expenditures - excluding equity AFUDC	(567,837)	(426,366)
Energy efficiency expenditures	(37,758)	(49,111)
Treasury grant payment received	0	28,675
Restricted cash	1,018	3,303
Other	1,525	1,331
Net cash used in investing activities	(603,052)	(442,168)
Financing activities:
Change in short-term debt and leases, net	(248,765)	(105,059)
Dividends paid	(116,691)	(103,076)
Long-term notes and bonds issued	1,087,000	575,000
Redemption of bonds and notes	(744,000)	(225,000)
Derivative contracts classified as financing activities due to merger	(123,951)	(222,858)
Issuance cost of bonds and other	(5,593)	(4,266)
Net cash provided by (used in) financing activities	(152,000)	(85,259)
Net increase (decrease) in cash and cash equivalents	(13,685)	54,399
Cash and cash equivalents at beginning of period	36,557	78,527
Cash and cash equivalents at end of period	22,872	132,926
Supplemental cash flow information:
Cash payments for interest (net of capitalized interest)	152,789	140,472
Cash payments (refunds) for income taxes	(64,018)	(22,513)
Puget Sound Energy Inc.
Operating activities:
Net income (loss)	154,352	(37,767)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation	148,361	144,654
Amortization	36,423	34,655
Conservation amortization	56,084	40,482
Deferred income taxes and tax credits, net	67,272	(470)
Net unrealized (gain) loss on derivative instruments	(15,632)	122,143
Long-term service prepayment	(18,200)	0
Pension funding	(5,000)	(12,000)
Other	15,218	23,614
Change in certain current assets and liabilities:
Accounts receivable and unbilled revenue	169,612	181,441
Materials and supplies	6,416	(14,866)
Fuel and gas inventory	28,880	3,702
Income taxes	50,396	13,514
Prepayments and other	(2,154)	(2,319)
Purchased gas adjustment	18,716	(42,207)
Accounts payable	(51,865)	(41,413)
Taxes payable	(6,726)	(11,816)
Accrued expenses and other	(1,308)	253
Net cash provided by operating activities	650,845	401,600
Investing activities:
Construction expenditures - excluding equity AFUDC	(567,837)	(426,366)
Energy efficiency expenditures	(37,758)	(49,111)
Treasury grant payment received	0	28,675
Restricted cash	1,018	3,303
Other	12,042	1,331
Net cash used in investing activities	(592,535)	(442,168)
Financing activities:
Change in short-term debt and leases, net	(248,765)	(105,059)
Dividends paid	(164,121)	(145,611)
Long-term notes and bonds issued	300,000	575,000
Loan from (payment to) parent	7,400	0
Redemption of bonds and notes	(260,000)	(225,000)
Investment from parent	287,000	0
Issuance cost of bonds and other	203	(4,266)
Net cash provided by (used in) financing activities	(78,283)	95,064
Net increase (decrease) in cash and cash equivalents	(19,973)	54,496
Cash and cash equivalents at beginning of period	36,320	78,407
Cash and cash equivalents at end of period	16,347	132,903
Supplemental cash flow information:
Cash payments for interest (net of capitalized interest)	96,703	99,433
Cash payments (refunds) for income taxes	$ (50,421)	$ (22,404)