CONSOLIDATED STATEMENTS OF INCOME (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Operating revenue:
Electric	$ 2,083,797	$ 2,156,920	$ 2,128,230
Gas	1,012,859	1,028,357	1,086,095
Other	16,515	2,020	831
Total operating revenue	3,113,171	3,187,297	3,215,156
Energy costs:
Purchased electricity	514,087	541,905	622,288
Electric generation fuel	263,493	261,332	204,956
Residential exchange	(129,036)	(81,053)	(73,555)
Purchased gas	458,691	488,201	538,612
Unrealized (gain) loss on derivative instruments, net	84,146	(102,744)	(133,606)
Utility operations and maintenance	550,146	529,939	512,765
Non-utility expense and other	13,109	(3,555)	814
Depreciation	370,962	364,324	337,952
Amortization	(5,356)	24,631	55,819
Conservation Amortization	104,096	105,897	114,177
Taxes other than income taxes	310,982	303,260	319,399
Total operating expenses	2,535,320	2,432,137	2,499,621
Operating income (loss)	577,851	755,160	715,535
Other income (deductions):
Other income	24,038	38,693	49,069
Other expense	(7,457)	(7,134)	(11,770)
Non-hedged interest rate swap expense	(3,915)	2,420	(4,288)
Interest charges:
AFUDC	5,611	11,261	22,216
Interest expense	(367,308)	(392,264)	(392,216)
Income (loss) before income taxes	228,820	408,136	378,546
Income tax (benefit) expense	56,985	122,408	104,725
Net income (loss)	171,835	285,728	273,821
PUGET SOUND ENERGY, INC.
Operating revenue:
Electric	2,083,797	2,156,920	2,128,230
Gas	1,012,859	1,028,357	1,086,095
Other	19,467	2,058	1,934
Total operating revenue	3,116,123	3,187,335	3,216,259
Energy costs:
Purchased electricity	514,087	541,905	622,288
Electric generation fuel	263,493	261,332	204,956
Residential exchange	(129,036)	(81,053)	(73,555)
Purchased gas	458,691	488,201	538,612
Unrealized (gain) loss on derivative instruments, net	85,636	(98,880)	(119,120)
Utility operations and maintenance	550,146	529,939	512,765
Non-utility expense and other	23,729	12,205	9,977
Depreciation	370,962	364,324	337,952
Amortization	(5,356)	24,631	55,819
Conservation Amortization	104,096	105,897	114,177
Taxes other than income taxes	310,982	303,260	319,399
Total operating expenses	2,547,430	2,451,761	2,523,270
Operating income (loss)	568,693	735,574	692,989
Other income (deductions):
Other income	24,036	38,690	49,056
Other expense	(7,457)	(7,134)	(11,770)
Interest charges:
AFUDC	5,611	11,261	22,216
Interest expense	(264,745)	(261,264)	(246,811)
Interest expense on parent note	(182)	(112)	(202)
Income (loss) before income taxes	325,956	517,015	505,478
Income tax (benefit) expense	89,342	160,886	149,308
Net income (loss)	$ 236,614	$ 356,129	$ 356,170