Pension Benefits and Postretirement Benefits Other Than Pensions (Tables)

6 Months Ended

Jun. 30, 2012

	Pension and SERP Plans
	For the Three Months Ended				For the Six Months Ended
	June 30, 2012		June 30, 2011		June 30, 2012		June 30, 2011
(Millions of Dollars)	NU		NU		NU		NU
Service Cost	$	22.8	$	14.0	$	38.1	$	27.7
Interest Cost		53.2		38.3		91.3		76.5
Expected Return on Plan Assets		(59.4)		(42.2)		(101.9)		(85.3)
Actuarial Loss		47.4		21.1		77.4		42.1
Prior Service Cost		2.0		2.4		4.1		4.8
Total - Net Periodic Benefit Expense	$	66.0	$	33.6	$	109.0	$	65.8
Capitalized Pension Expense	$	19.7	$	8.0	$	30.3	$	15.7

	PBOP Plans and Group Welfare Benefit Plans
	For the Three Months Ended				For the Six Months Ended
	June 30, 2012		June 30, 2011		June 30, 2012		June 30, 2011
(Millions of Dollars)	NU		NU		NU		NU
Service Cost	$	4.5	$	2.1	$	6.8	$	4.5
Interest Cost		13.9		6.5		20.1		12.9
Expected Return on Plan Assets		(11.3)		(5.4)		(17.0)		(10.8)
Actuarial Loss		9.7		5.0		15.2		9.5
Prior Service Credit		(0.4)		-		(0.4)		(0.1)
Net Transition Obligation Cost		3.1		2.9		5.9		5.8
Total - Net Periodic Benefit Expense	$	19.5	$	11.1	$	30.6	$	21.8


		Pension and SERP Plans
		For the Three Months Ended June 30, 2012								For the Three Months Ended June 30, 2011
				NSTAR								NSTAR
(Millions of Dollars)		CL&P		Electric⁽¹⁾		PSNH		WMECO		CL&P		Electric^{(1), (2)}		PSNH		WMECO
Service Cost		$	5.4	$	7.3	$	2.9	$	1.1	$	4.9	$	6.1	$	2.7	$	1.0
Interest Cost			12.9		14.7		6.1		2.6		13.0		15.3		6.1		2.7
Expected Return on Plan Assets			(17.7)		(16.3)		(7.2)		(4.1)		(19.1)		(18.4)		(4.7)		(4.4)
Actuarial Loss			12.6		15.9		4.1		2.7		8.2		12.5		2.6		1.7
Prior Service Cost/(Credit)			0.9		(0.1)		0.4		0.2		1.0		(0.2)		0.5		0.2
Total - Net Periodic Benefit Expense		$	14.1	$	21.5	$	6.3	$	2.5	$	8.0	$	15.3	$	7.2	$	1.2
Related Intercompany
	Allocations	$	10.7	$	(3.0)	$	2.4	$	2.0	$	8.7	$	(2.0)	$	1.9	$	1.6
Capitalized Pension Expense		$	6.8	$	8.9	$	1.9	$	1.2	$	4.4	$	4.9	$	2.0	$	2.7

		Pension and SERP Plans
		For the Six Months Ended June 30, 2012								For the Six Months Ended June 30, 2011
				NSTAR								NSTAR
(Millions of Dollars)		CL&P		Electric^{(1), (2)}		PSNH		WMECO		CL&P		Electric^{(1), (2)}		PSNH		WMECO
Service Cost		$	10.9	$	15.1	$	5.8	$	2.1	$	9.7	$	13.0	$	5.3	$	2.0
Interest Cost			25.6		29.5		12.2		5.3		26.1		30.5		12.3		5.4
Expected Return on Plan Assets			(35.2)		(32.8)		(13.9)		(8.2)		(38.3)		(35.7)		(10.0)		(8.8)
Actuarial Loss			24.5		31.6		8.0		5.2		16.6		24.3		5.2		3.4
Prior Service Cost/(Credit)			1.8		(0.3)		0.8		0.4		2.0		(0.4)		1.0		0.4
Total - Net Periodic Benefit Expense		$	27.6	$	43.1	$	12.9	$	4.8	$	16.1	$	31.7	$	13.8	$	2.4
Related Intercompany
	Allocations	$	21.3	$	(6.2)	$	5.0	$	4.0	$	16.5	$	(4.5)	$	3.8	$	3.0
Capitalized Pension Expense		$	13.4	$	15.2	$	3.9	$	2.4	$	8.9	$	9.9	$	3.9	$	1.4

		PBOP Plans
		For the Three Months Ended June 30, 2012						For the Three Months Ended June 30, 2011
(Millions of Dollars)		CL&P			PSNH		WMECO	CL&P		PSNH		WMECO
Service Cost		$	0.7	$	0.5	$	0.1	$	0.7	$	0.5	$	0.2
Interest Cost			2.3		1.1		0.5		2.5		1.2		0.5
Expected Return on Plan Assets			(2.3)		(1.1)		(0.5)		(2.1)		(1.1)		(0.5)
Actuarial Loss			1.8		0.8		0.3		1.9		0.9		0.3
Net Transition Obligation Cost			1.5		0.6		0.3		1.5		0.6		0.3
Total - Net Periodic Benefits Expense		$	4.0	$	1.9	$	0.7	$	4.5	$	2.1	$	0.8
Related Intercompany
	Allocations	$	1.9	$	0.5	$	0.4	$	2.0	$	0.5	$	0.9

		PBOP Plans
		For the Six Months Ended June 30, 2012						For the Six Months Ended June 30, 2011
(Millions of Dollars)		CL&P		PSNH		WMECO		CL&P		PSNH		WMECO
Service Cost		$	1.4	$	1.0	$	0.3	$	1.4	$	1.0	$	0.3
Interest Cost			4.6		2.3		1.0		5.0		2.4		1.1
Expected Return on Plan Assets			(4.5)		(2.3)		(1.1)		(4.3)		(2.2)		(1.0)
Actuarial Loss			3.8		1.8		0.6		3.6		1.6		0.6
Net Transition Obligation Cost			3.0		1.2		0.7		3.1		1.2		0.6
Total - Net Periodic Benefits Expense		$	8.3	$	4.0	$	1.5	$	8.8	$	4.0	$	1.6
Related Intercompany
	Allocations	$	4.1	$	1.0	$	0.8	$	4.1	$	1.0	$	1.7