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DERIVATIVE INSTRUMENTS (Tables)
 9 Months Ended
Sep. 30, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]  
Gross Fair Values and Net Amounts of Contracts The following table presents the gross fair values of contracts, categorized by risk type, and the net amounts recorded as current or long-term derivative assets or liabilities:
 
 
 
As of September 30, 2019
 
As of December 31, 2018
(Millions of Dollars)
Fair Value Hierarchy
 
Commodity Supply and Price Risk
Management
 
Netting (1)
 
Net Amount
Recorded as a Derivative
 
Commodity Supply and Price Risk
Management
 
Netting (1)
 
Net Amount
Recorded as
a Derivative
Current Derivative Assets:
 
 
 
 
 
 
 
 
 
 
 
 
 
CL&P
Level 3
 
$
11.6

 
$
(0.3
)
 
$
11.3

 
$
9.6

 
$
(3.4
)
 
$
6.2

Other
Level 2
 
—

 
—

 
—

 
1.5

 
(0.9
)
 
0.6

Long-Term Derivative Assets:
 
 
 
 
 
 
 
 
 
 
 
 
 
CL&P
Level 3
 
70.9

 
(2.2
)
 
68.7

 
74.2

 
(2.3
)
 
71.9

Current Derivative Liabilities:
 
 
 
 
 
 
 
 
 
 
 
 
 
CL&P
Level 3
 
(64.6
)
 
—

 
(64.6
)
 
(55.1
)
 
—

 
(55.1
)
Other
Level 2
 
(3.5
)
 
0.2

 
(3.3
)
 
—

 
—

 
—

Long-Term Derivative Liabilities:
 
 
 
 
 
 
 
 
 
 
 
 
 
CL&P
Level 3
 
(357.7
)
 
—

 
(357.7
)
 
(379.5
)
 
—

 
(379.5
)
Other
Level 2
 
(0.2
)
 
—

 
(0.2
)
 
—

 
—

 
—


(1) 
Amounts represent derivative assets and liabilities that Eversource elected to record net on the balance sheets.  These amounts are subject to master netting agreements or similar agreements for which the right of offset exists.
Summary of Level 3 Derivative Contracts and Significant Unobservable Inputs Used
The following is a summary of Level 3 derivative contracts and the range of the significant unobservable inputs utilized in the valuations over the duration of the contracts:
 
As of September 30, 2019
 
As of December 31, 2018
CL&P
Range
 
Period Covered
 
Range
 
Period Covered
Capacity Prices
$
3.01

 
—
 
7.34

 
per kW-Month
 
2023 - 2026
 
$
4.30

 
—
 
7.44

 
per kW-Month
 
2022 - 2026
Forward Reserve
0.80

 
—
 
1.90

 
per kW-Month
 
2019 - 2024
 
0.75

 
—
 
1.78

 
per kW-Month
 
2019 - 2024
Changes in the Level 3 Category of Derivative Assets Measured at Fair Value on a Recurring Basis The following table presents changes in the Level 3 category of derivative assets and derivative liabilities measured at fair value on a recurring basis.  The derivative assets and liabilities are presented on a net basis.
CL&P
For the Three Months Ended September 30,
 
For the Nine Months Ended September 30,
(Millions of Dollars)
2019
 
2018
 
2019
 
2018
Derivatives, Net:
 
 
 
 
 
 
 
Fair Value as of Beginning of Period
$
(345.4
)
 
$
(369.3
)
 
$
(356.5
)
 
$
(362.3
)
Net Realized/Unrealized (Losses)/Gains Included
  in Regulatory Assets
(8.5
)
 
1.2

 
(16.4
)
 
(27.0
)
Settlements
11.6

 
8.2

 
30.6

 
29.4

Fair Value as of End of Period
$
(342.3
)
 
$
(359.9
)
 
$
(342.3
)
 
$
(359.9
)