Eversource 2010 Annual Report Download - page 113

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96
The following actuarial assumptions were used in calculating the plans' year end funded status:
As of December 31,
Pension Benefits and SERP PBOP Benefits
Balance Sheets 2010 2009 2010 2009
Discount Rate 5.57 % 5.98 % 5.28 % 5.73 %
Compensation/Progression Rate 3.50 % 4.00 % N/A N/A
Health Care Cost Trend Rate N/A N/A 7.00 % 7.50 %
The components of net periodic benefit expense/(income) are as follows:
For the Years Ended December 31,
NU Pension Benefits SERP Benefits PBOP Benefits
(Millions of Dollars) 2010 2009 2008 2010 2009 2008 2010 2009 2008
Service Cost $ 50.3 $ 45.0 $ 43.9 $ 0.7 $ 0.8 $ 0.7 $ 8.5 $ 7.2 $ 7.1
Interest Cost 150.3 153.4 144.0 2.3 2.3 2.0 26.8 29.1 28.3
Expected Return on Plan Assets (182.6) (189.4) (200.2) - - - (21.7) (20.9) (21.1)
Net Transition Obligation Cost - 0.3 0.2 - - - 11.6 11.6 11.6
Prior Service Cost/(Credit) 9.8 9.8 9.9 0.1 0.1 0.1 (0.3) (0.3) (0.3)
A
ctuarial Loss 52.6 20.6 4.6 1.0 0.4 0.3 16.7 10.5 10.6
Total - Net Periodic Expense $ 80.4 $ 39.7 $ 2.4 $ 4.1 $ 3.6 $ 3.1 $ 41.6 $ 37.2 $ 36.2
For the Years Ended December 31,
CL&P Pension Benefits SERP Benefits PBOP Benefits
(Millions of Dollars) 2010 2009 2008 2010 2009 2008 2010 2009 2008
Service Cost $ 17.6 $ 16.0 $ 15.4 $ - $ - $ - $ 2.7 $ 2.2 $ 2.2
Interest Cost 52.0 54.3 51.4 0.2 0.2 0.2 10.5 11.5 11.3
Expected Return on Plan Assets (85.8) (89.0) (93.4) - - - (8.7) (8.3) (8.4)
Net Transition Obligation Cost - - - - - - 6.1 6.1 6.1
Prior Service Cost 4.2 4.2 4.2 - - - - - -
A
ctuarial Loss 20.5 8.8 1.1 0.2 0.1 0.1 6.3 4.0 4.5
Total - Net Periodic Expense/(Income) $ 8.5 $ (5.7) $ (21.3) $ 0.4 $ 0.3 $ 0.3 $ 16.9 $ 15.5 $ 15.7
For the Years Ended December 31,
PSNH Pension Benefits SERP Benefits PBOP Benefits
(Millions of Dollars) 2010 2009 2008 2010 2009 2008 2010 2009 2008
Service Cost $ 9.9 $ 8.8 $ 9.2 $ 0.1 $ 0.1 $ - $ 1.8 $ 1.5 $ 1.7
Interest Cost 24.0 24.3 23.2 0.1 0.1 0.1 5.0 5.4 5.2
Expected Return on Plan Assets (14.7) (15.0) (17.9) - - - (4.3) (4.1) (4.0)
Net Transition Obligation Cost - 0.3 0.3 - - - 2.5 2.5 2.5
Prior Service Cost 1.8 1.8 1.9 - - - - - -
A
ctuarial Loss 7.1 3.1 1.4 0.1 0.1 0.1 2.7 1.7 1.7
Total - Net Periodic Expense $ 28.1 $ 23.3 $ 18.1 $ 0.3 $ 0.3 $ 0.2 $ 7.7 $ 7.0 $ 7.1
For the Years Ended December 31,
WMECO Pension Benefits SERP Benefits PBOP Benefits
(Millions of Dollars) 2010 2009 2008 2010 2009 2008 2010 2009 2008
Service Cost $ 3.5 $ 3.3 $ 3.2 $ - $ - $ - $ 0.6 $ 0.5 $ 0.5
Interest Cost 10.7 11.1 10.4 - - 0.1 2.3 2.5 2.4
Expected Return on Plan Assets (19.5) (20.0) (20.7) - - - (2.1) (2.0) (2.1)
Net Transition Obligation Cost - - - - - - 1.3 1.3 1.4
Prior Service Cost 0.9 0.9 0.9 - - - - - -
A
ctuarial Loss 4.3 1.8 0.1 - - - 0.9 0.4 0.6
Total - Net Periodic Expense/(Income) $ (0.1) $ (2.9) $ (6.1) $ - $ - $ 0.1 $ 3.0 $ 2.7 $ 2.8
Not included in the Pension Plan, PBOP Plan and SERP amounts above for CL&P, PSNH and WMECO are related intercompany
allocations as follows:
For the Years Ended December 31,
CL&P PSNH WMECO
(Millions of Dollars) 2010 2009 2008 2010 2009 2008 2010 2009 2008
Pension Benefits $ 23.2 $ 14.5 $ 8.9 $ 5.4 $ 3.1 $ 2.0 $ 4.2 $ 2.4 $ 1.5
PBOP Benefits 7.9 7.3 6.7 2.0 1.7 1.5 1.4 1.1 1.1
SERP Benefits 2.0 1.8 1.6 0.6 0.5 0.4 0.3 0.3 0.2