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ASSETS HELD FOR SALE (Tables)
3 Months Ended
Mar. 31, 2018
Regulated Operations [Abstract]  
Schedule of Generation Assets and Liabilities
As of March 31, 2018, PSNH's hydroelectric generation assets held for sale, which are included in current assets on the Eversource and PSNH balance sheets, and are part of the Electric Distribution reportable segment, were as follows:
(Millions of Dollars)
 
Hydroelectric Gross Plant
$
86.6

Accumulated Depreciation
(27.4
)
Net Plant
59.2

Materials and Supplies
0.1

Total Hydroelectric Generation Assets Held for Sale
$
59.3