Segment Information

12 Months Ended

Dec. 31, 2012

Segment Reporting [Abstract]

Segment Information

Segment Information

Puget Energy operates one business segment referred to as the regulated utility segment.  Puget Energy’s regulated utility operation generates, purchases and sells electricity and purchases, transports and sells natural gas.  The service territory of PSE covers approximately 6,000 square miles in the state of Washington.

Non-utility business segment includes two PSE subsidiaries and Puget Energy, and is described as Other.  The PSE subsidiaries are a real estate investment and development company and a holding company for a small non-utility wholesale generator which was sold in 2010.  Reconciling items between segments are not significant.

Effective February 6, 2009, all merger related fair value adjustments under ASC 805, were retained in Puget Energy.  Accordingly, only the financial statements of Puget Energy were adjusted to reflect the purchase accounting adjustments.  Prior to the merger, the business segment financial statements for Puget Energy and PSE were the same.

	Year Ended December 31, 2012
Puget Energy (Dollars in Thousands)	Regulated Utility		Other			Total
Revenue	$	3,215,876	$	(720	)	$	3,215,156
Depreciation and amortization	393,770		1			393,771
Income tax (benefit) expense	154,805		(50,080		)	104,725
Operating income	718,622		(3,087		)	715,535
Interest charges, net of AFUDC	234,890		135,110			370,000
Net income	366,377		(92,556		)	273,821
Total assets	11,076,350		1,725,229			12,801,579
Construction expenditures - excluding equity AFUDC	859,791		—			859,791

	Year Ended December 31, 2012
Puget Sound Energy (Dollars in Thousands)	Regulated Utility		Other			Total
Revenue	$	3,215,876	$	383		$	3,216,259
Depreciation and amortization	393,770		1			393,771
Income tax expense	149,731		(423		)	149,308
Operating income	694,035		(1,046		)	692,989
Interest charges, net of AFUDC	224,797		—			224,797
Net income	356,956		(786		)	356,170
Total assets	10,555,289		38,987			10,594,276
Construction expenditures - excluding equity AFUDC	859,791		—			859,791

	Year Ended December 31, 2011
Puget Energy (Dollars in Thousands)	Regulated Utility		Other			Total
Revenue	$	3,319,105	$	(340	)	$	3,318,765
Depreciation and amortization	371,977		1			371,978
Income tax (benefit) expense	91,464		(57,704		)	33,760
Operating income	477,730		(2,790		)	474,940
Interest charges, net of AFUDC	210,463		131,498			341,961
Net income	228,908		(105,618		)	123,290
Total assets	10,671,089		1,736,217			12,407,306
Construction expenditures - excluding equity AFUDC	976,513		—			976,513

	Year Ended December 31, 2011
Puget Sound Energy (Dollars in Thousands)	Regulated Utility		Other			Total
Revenue	$	3,319,106	$	697		$	3,319,803
Depreciation and amortization	371,977		1			371,978
Income tax (benefit) expense	78,451		(334		)	78,117
Operating income	431,553		(510		)	431,043
Interest charges, net of AFUDC	201,467		—			201,467
Net income	204,740		(620		)	204,120
Total assets	10,064,859		43,284			10,108,143
Construction expenditures - excluding equity AFUDC	976,513		—			976,513

	Year Ended December 31, 2010
Puget Energy (Dollars in Thousands)	Regulated Utility		Other			Total
Revenue	$	3,121,934	$	283		$	3,122,217
Depreciation and amortization	364,205		1			364,206
Income tax (benefit) expense	35,905		(33,424		)	2,481
Operating income	310,130		(1,896		)	308,234
Interest charges, net of AFUDC	220,922		86,088			307,010
Net income	92,927		(62,616		)	30,311
Total assets	10,209,207		1,748,804			11,958,011
Construction expenditures - excluding equity AFUDC	859,091		—			859,091

	Year Ended December 31, 2010
Puget Sound Energy (Dollars in Thousands)	Regulated Utility		Other			Total
Revenue	$	3,121,935	$	282		$	3,122,217
Depreciation and amortization	364,204		2			364,206
Income tax (benefit) expense	60		62			122
Operating income	207,647		(56		)	207,591
Interest charges, net of AFUDC	220,854		—			220,854
Net income	26,358		(263		)	26,095
Total assets	9,289,350		50,109			9,339,459
Construction expenditures - excluding equity AFUDC	859,091		—			859,091