PENSION BENEFITS AND POSTRETIREMENT BENEFITS OTHER THAN PENSION

Eversource provides defined benefit retirement plans ("Pension Plans") that cover eligible employees, including, among others, employees of CL&P, NSTAR Electric and PSNH. In addition to the Pension Plans, Eversource maintains non-qualified defined benefit retirement plans ("SERP Plans"), which provide benefits in excess of Internal Revenue Code limitations to eligible participants consisting of current and retired employees. Eversource also provides defined benefit postretirement plans (the "PBOP Plans") that provide life insurance and a health reimbursement arrangement created for the purpose of reimbursing retirees and dependents for health insurance premiums and certain medical expenses to eligible employees that met certain age and service eligibility requirements.

The components of net periodic benefit expense for the Pension, SERP and PBOP Plans are shown below. The service cost component of net periodic benefit expense and the intercompany allocations, less the capitalized portions, are included in Operations and Maintenance expense on the statements of income. The remaining components of net periodic benefit costs for pension, SERP and PBOP are included in Other Income, Net on the statements of income. Capitalized amounts relate to employees working on capital projects and are included in Property, Plant and Equipment, Net on the balance sheets. Pension, SERP and PBOP expense reflected in the statements of cash flows for CL&P, NSTAR Electric and PSNH does not include the intercompany allocations or the corresponding capitalized portion, as these amounts are cash settled on a short-term basis.



	Pension and SERP
Eversource	For the Three Months Ended
(Millions of Dollars)	March 31, 2018			March 31, 2017
Service Cost	$	22.7		$	18.7
Interest Cost	48.4			46.3
Expected Return on Pension Plan Assets	(98.0		)	(83.5		)
Actuarial Loss	36.0			33.6
Prior Service Cost	2.2			1.1
Total Net Periodic Benefit Expense	$	11.3		$	16.2
Capitalized Pension Expense	$	7.5		$	5.4



	PBOP
Eversource	For the Three Months Ended
(Millions of Dollars)	March 31, 2018			March 31, 2017
Service Cost	$	2.7		$	2.4
Interest Cost	7.6			7.2
Expected Return on Plan Assets	(18.1		)	(15.9		)
Actuarial Loss	2.6			2.0
Prior Service Credit	(5.9		)	(5.3		)
Total Net Periodic Benefit Income	$	(11.1	)	$	(9.6	)
Capitalized PBOP Expense/(Income)	$	0.8		$	(4.6	)



	Pension and SERP
	For the Three Months Ended March 31, 2018									For the Three Months Ended March 31, 2017
(Millions of Dollars)	CL&P			NSTAR Electric			PSNH			CL&P			NSTAR Electric			PSNH
Service Cost	$	5.7		$	4.7		$	2.9		$	4.8		$	4.1		$	2.5
Interest Cost	10.6			10.8			5.3			10.5			10.4			5.2
Expected Return on Pension Plan Assets	(20.8		)	(25.2		)	(10.9		)	(18.0		)	(22.0		)	(9.9		)
Actuarial Loss	7.4			10.5			3.3			6.9			10.1			2.8
Prior Service Cost	0.4			0.2			0.1			0.4			0.2			0.1
Total Net Periodic Benefit Expense	$	3.3		$	1.0		$	0.7		$	4.6		$	2.8		$	0.7
Intercompany Allocations	$	1.4		$	1.5		$	0.5		$	2.5		$	2.4		$	0.8
Capitalized Pension Expense	$	2.3		$	2.1		$	0.8		$	2.5		$	1.8		$	0.3



	PBOP
	For the Three Months Ended March 31, 2018									For the Three Months Ended March 31, 2017
(Millions of Dollars)	CL&P			NSTAR Electric			PSNH			CL&P			NSTAR Electric			PSNH
Service Cost	$	0.5		$	0.5		$	0.3		$	0.5		$	0.5		$	0.3
Interest Cost	1.4			2.2			0.8			1.4			2.4			0.8
Expected Return on Plan Assets	(2.6		)	(8.1		)	(1.5		)	(2.4		)	(7.1		)	(1.3		)
Actuarial Loss	0.3			0.7			0.2			0.2			0.9			0.1
Prior Service Cost/(Credit)	0.3			(4.3		)	0.1			0.3			(4.3		)	0.1
Total Net Periodic Benefit Income	$	(0.1	)	$	(9.0	)	$	(0.1	)	$	—		$	(7.6	)	$	—
Intercompany Allocations	$	(0.3	)	$	(0.3	)	$	(0.1	)	$	(0.3	)	$	(0.3	)	$	(0.1	)
Capitalized PBOP Expense/(Income)	$	0.2		$	0.2		$	0.1		$	(0.1	)	$	(3.8	)	$	—