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PROPERTY, PLANT AND EQUIPMENT AND ACCUMULATED DEPRECIATION
 9 Months Ended
Sep. 30, 2020
Property, Plant and Equipment [Abstract]  
PROPERTY, PLANT AND EQUIPMENT AND ACCUMULATED DEPRECIATION PROPERTY, PLANT AND EQUIPMENT AND ACCUMULATED DEPRECIATION

The following tables summarize property, plant and equipment by asset category:
Eversource
As of September 30, 2020
 
As of December 31, 2019
(Millions of Dollars)
 
Distribution - Electric
$
16,435.4

 
$
15,880.0

Distribution - Natural Gas
4,073.0

 
3,931.1

Transmission - Electric
11,601.7

 
10,958.4

Distribution - Water
1,683.8

 
1,726.5

Solar
201.2

 
200.2

Utility
33,995.1

 
32,696.2

Other (1)
1,193.0

 
1,025.6

Property, Plant and Equipment, Gross
35,188.1

 
33,721.8

Less:  Accumulated Depreciation
 
 
 
Utility   
(7,731.0
)
 
(7,483.5
)
Other
(455.2
)
 
(387.4
)
Total Accumulated Depreciation
(8,186.2
)
 
(7,870.9
)
Property, Plant and Equipment, Net
27,001.9

 
25,850.9

Construction Work in Progress
2,091.1

 
1,734.6

Total Property, Plant and Equipment, Net
$
29,093.0

 
$
27,585.5


 
As of September 30, 2020
 
As of December 31, 2019
(Millions of Dollars)
CL&P
 
NSTAR
Electric
 
PSNH
 
CL&P
 
NSTAR
Electric
 
PSNH
Distribution - Electric
$
6,728.7

 
$
7,414.0

 
$
2,332.9

 
$
6,485.5

 
$
7,163.7

 
$
2,271.1

Transmission - Electric
5,299.0

 
4,608.9

 
1,689.0

 
5,043.0

 
4,411.9

 
1,498.7

Solar
—

 
201.2

 
—

 
—

 
200.2

 
—

Property, Plant and Equipment, Gross
12,027.7

 
12,224.1

 
4,021.9

 
11,528.5

 
11,775.8

 
3,769.8

Less:  Accumulated Depreciation
(2,453.1
)
 
(3,022.7
)
 
(832.8
)
 
(2,385.7
)
 
(2,895.3
)
 
(799.9
)
Property, Plant and Equipment, Net
9,574.6

 
9,201.4

 
3,189.1

 
9,142.8

 
8,880.5

 
2,969.9

Construction Work in Progress
490.7

 
742.0

 
130.4

 
483.0

 
592.3

 
159.6

Total Property, Plant and Equipment, Net
$
10,065.3

 
$
9,943.4

 
$
3,319.5

 
$
9,625.8

 
$
9,472.8

 
$
3,129.5



(1) 
These assets are primarily comprised of computer software, hardware and equipment at Eversource Service and buildings at The Rocky River Realty Company.

Sale of Water System: On July 31, 2020, Eversource sold its water system and treatment plant that supplies water to the towns of Hingham, Hull and North Cohasset to the town of Hingham, Massachusetts.  Net property, plant and equipment of $63.9 million and goodwill of $23.6 million were included in determining the gain on sale.  Proceeds from the sale were $110.5 million, with a pre-tax gain of $16.0 million (after-tax gain of $3.5 million) recognized within Operations and Maintenance Expense on the statement of income in the third quarter of 2020.  The assets and liabilities associated with the sale of the business were previously reflected in the Water Distribution segment and reporting unit.