REGULATORY ACCOUNTING (Tables)

3 Months Ended

Mar. 31, 2017

Regulated Operations [Abstract]

Schedule of Regulatory Assets

The components of regulatory assets were as follows:

Eversource	As of March 31, 2017		As of December 31, 2016
(Millions of Dollars)
Benefit Costs	$	1,782.5	$	1,817.8
Derivative Liabilities	416.3		423.3
Income Taxes, Net	645.4		644.5
Storm Restoration Costs	375.8		385.3
Goodwill-related	459.3		464.4
Regulatory Tracker Mechanisms	578.9		576.6
Contractual Obligations - Yankee Companies	70.6		84.9
Other Regulatory Assets	110.9		129.5
Total Regulatory Assets	4,439.7		4,526.3
Less:  Current Portion	875.0		887.6
Total Long-Term Regulatory Assets	$	3,564.7	$	3,638.7

	As of March 31, 2017								As of December 31, 2016
(Millions of Dollars)	CL&P		NSTAR Electric		PSNH		WMECO		CL&P		NSTAR Electric		PSNH		WMECO
Benefit Costs	$	421.5	$	429.9	$	181.1	$	85.1	$	429.3	$	438.6	$	184.2	$	86.7
Derivative Liabilities	413.5		2.5		—		—		420.5		2.8		—		—
Income Taxes, Net	435.9		90.4		23.4		30.9		437.0		89.7		24.2		30.8
Storm Restoration Costs	225.1		118.5		17.0		15.2		239.8		112.5		17.1		15.9
Goodwill-related	—		394.3		—		—		—		398.7		—		—
Regulatory Tracker Mechanisms	170.5		245.9		101.8		49.1		123.9		257.3		104.5		46.7
Other Regulatory Assets	71.1		46.1		31.6		9.0		76.6		47.5		32.7		11.3
Total Regulatory Assets	1,737.6		1,327.6		354.9		189.3		1,727.1		1,347.1		362.7		191.4
Less:  Current Portion	370.1		276.5		111.3		66.0		335.5		289.4		117.2		64.1
Total Long-Term Regulatory Assets	$	1,367.5	$	1,051.1	$	243.6	$	123.3	$	1,391.6	$	1,057.7	$	245.5	$	127.3

Schedule of Regulatory Liabilities

The components of regulatory liabilities were as follows:

Eversource	As of March 31, 2017		As of December 31, 2016
(Millions of Dollars)
Cost of Removal	$	469.6	$	459.7
Benefit Costs	130.8		136.2
Regulatory Tracker Mechanisms	188.8		145.3
AFUDC - Transmission	65.8		65.8
Other Regulatory Liabilities	37.2		42.1
Total Regulatory Liabilities	892.2		849.1
Less:  Current Portion	199.2		146.8
Total Long-Term Regulatory Liabilities	$	693.0	$	702.3

	As of March 31, 2017								As of December 31, 2016
(Millions of Dollars)	CL&P		NSTAR Electric		PSNH		WMECO		CL&P		NSTAR Electric		PSNH		WMECO
Cost of Removal	$	42.5	$	273.3	$	44.8	$	10.6	$	38.8	$	271.6	$	44.1	$	8.6
Benefit Costs	—		109.8		—		—		—		113.1		—		—
Regulatory Tracker Mechanisms	44.5		62.2		15.0		12.7		37.2		63.7		10.7		14.7
AFUDC - Transmission	49.9		7.2		—		8.7		50.2		6.9		—		8.7
Other Regulatory Liabilities	23.2		0.2		3.0		—		21.0		0.2		2.7		0.1
Total Regulatory Liabilities	160.1		452.7		62.8		32.0		147.2		455.5		57.5		32.1
Less:  Current Portion	58.9		62.2		17.2		12.9		47.1		63.7		12.7		14.9
Total Long-Term Regulatory Liabilities	$	101.2	$	390.5	$	45.6	$	19.1	$	100.1	$	391.8	$	44.8	$	17.2