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PSNH GENERATION ASSET SALE - (Tables)
9 Months Ended
Sep. 30, 2017
Regulated Operations [Abstract]  
Schedule of Generation Assets and Liabilities
As of September 30, 2017, PSNH's generation assets were as follows:
(Millions of Dollars)
 
Gross Plant
$
1,184.1

Accumulated Depreciation
(573.3
)
Net Plant
610.8

Fuel
92.9

Materials and Supplies
44.0

Emission Allowances
19.4

Total Generation Assets
$
767.1