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Property, Plant and Equipment, Net
3 Months Ended
Mar. 31, 2020
Property, Plant and Equipment [Line Items]  
Property, Plant and Equipment, Net
Property, Plant and Equipment, Net

Property, plant and equipment, net consists of the following (in millions):
 
 
 
As of
 
Depreciable
 
March 31,
 
December 31,
 
Life
 
2020
 
2019
Regulated assets:
 
 
 
 
 
Utility generation, transmission and distribution systems
5-80 years
 
$
80,530

 
$
81,127

Interstate natural gas pipeline assets
3-80 years
 
8,181

 
8,165

 
 
 
88,711

 
89,292

Accumulated depreciation and amortization
 
 
(26,414
)
 
(26,353
)
Regulated assets, net
 
 
62,297

 
62,939

 
 
 
 

 
 

Nonregulated assets:
 
 
 

 
 

Independent power plants
5-30 years
 
6,994

 
6,983

Other assets
3-30 years
 
1,798

 
1,834

 
 
 
8,792

 
8,817

Accumulated depreciation and amortization
 
 
(2,244
)
 
(2,183
)
Nonregulated assets, net
 
 
6,548

 
6,634

 
 
 
 

 
 

Net operating assets
 
 
68,845

 
69,573

Construction work-in-progress
 
 
3,819

 
3,732

Property, plant and equipment, net
 
 
$
72,664

 
$
73,305



Construction work-in-progress includes $3.7 billion as of March 31, 2020 and $3.6 billion as of December 31, 2019, related to the construction of regulated assets.
MidAmerican Funding, LLC and Subsidiaries [Domain]  
Property, Plant and Equipment [Line Items]  
Property, Plant and Equipment, Net
Property, Plant and Equipment, Net

Refer to Note 3 of MidAmerican Energy's Notes to Financial Statements. In addition to MidAmerican Energy's property, plant and equipment, net, MidAmerican Funding had as of March 31, 2020 and December 31, 2019, nonregulated property gross of $1 million and $3 million, respectively, and related accumulated depreciation and amortization of $- million and $1 million, respectively.
MidAmerican Energy Company [Member]  
Property, Plant and Equipment [Line Items]  
Property, Plant and Equipment, Net
Property, Plant and Equipment, Net

Property, plant and equipment, net consists of the following (in millions):
 
 
 
As of
 
 
 
March 31,
 
December 31,
 
Depreciable Life
 
2020
 
2019
Utility plant in service, net:
 
 
 
 
 
Generation
20-70 years
 
$
15,776

 
$
15,687

Transmission
52-75 years
 
2,138

 
2,124

Electric distribution
20-75 years
 
4,131

 
4,095

Natural gas distribution
29-75 years
 
1,833

 
1,820

Utility plant in service
 
 
23,878

 
23,726

Accumulated depreciation and amortization
 
 
(6,233
)
 
(6,139
)
Utility plant in service, net
 
 
17,645

 
17,587

Nonregulated property, net:
 
 
 
 
 
Nonregulated property gross
20-50 years
 
7

 
7

Accumulated depreciation and amortization
 
 
(1
)
 
(1
)
Nonregulated property, net
 
 
6

 
6

 
 
 
17,651

 
17,593

Construction work-in-progress
 
 
851

 
782

Property, plant and equipment, net
 
 
$
18,502

 
$
18,375

PacifiCorp [Member]  
Property, Plant and Equipment [Line Items]  
Property, Plant and Equipment, Net
Property, Plant and Equipment, Net

Property, plant and equipment, net consists of the following (in millions):
 
 
 
As of
 
 
 
March 31,
 
December 31,
 
Depreciable Life
 
2020
 
2019
Utility Plant:
 
 
 
 
 
Generation
14 - 67 years
 
$
12,468

 
$
12,509

Transmission
58 - 75 years
 
6,513

 
6,482

Distribution
20 - 70 years
 
7,359

 
7,307

Intangible plant(1)
5 - 75 years
 
1,018

 
1,016

Other
5 - 60 years
 
1,463

 
1,449

Utility plant in service
 
 
28,821

 
28,763

Accumulated depreciation and amortization
 
 
(9,739
)
 
(9,803
)
Utility plant in-service, net
 
 
19,082

 
18,960

Other non-regulated, net of accumulated depreciation and amortization
59 years
 
9

 
10

Plant, net
 
 
19,091

 
18,970

Construction work-in-progress
 
 
2,008

 
2,003

Property, plant and equipment, net
 
 
$
21,099

 
$
20,973


(1)
Computer software costs included in intangible plant are initially assigned a depreciable life of 5 to 10 years.

In March 2020, PacifiCorp acquired wind turbines from BHE Wind, LLC, an indirect wholly owned subsidiary of BHE, for $47 million. The wind turbines will be installed as part of newly constructed wind-powered generating facilities that are planned to be placed in service in 2020.
Nevada Power Company [Member]  
Property, Plant and Equipment [Line Items]  
Property, Plant and Equipment, Net
Property, Plant and Equipment, Net

Property, plant and equipment, net consists of the following (in millions):
 
 
 
As of
 
Depreciable Life
 
March 31,
 
December 31,
 
 
2020
 
2019
Utility plant:
 
 
 
 
 
Generation
30 - 55 years
 
$
3,551

 
$
3,541

Transmission
45 - 70 years
 
1,456

 
1,444

Distribution
20 - 65 years
 
3,603

 
3,567

General and intangible plant
5 - 65 years
 
744

 
741

Utility plant
 
 
9,354

 
9,293

Accumulated depreciation and amortization
 
 
(3,020
)
 
(2,951
)
Utility plant, net
 
 
6,334

 
6,342

Other non-regulated, net of accumulated depreciation and amortization
45 years
 
1

 
1

Plant, net
 
 
6,335

 
6,343

Construction work-in-progress
 
 
250

 
195

Property, plant and equipment, net
 
 
$
6,585

 
$
6,538

Sierra Pacific Power Company [Member]  
Property, Plant and Equipment [Line Items]  
Property, Plant and Equipment, Net
Property, Plant and Equipment, Net

Property, plant and equipment, net consists of the following (in millions):
 
 
 
As of
 
Depreciable Life
 
March 31,
 
December 31,
 
 
2020
 
2019
Utility plant:
 
 
 
 
 
Electric generation
25 - 60 years
 
$
1,129

 
$
1,133

Electric transmission
50 - 100 years
 
874

 
840

Electric distribution
20 - 100 years
 
1,690

 
1,669

Electric general and intangible plant
5 - 70 years
 
182

 
178

Natural gas distribution
35 - 70 years
 
421

 
417

Natural gas general and intangible plant
5 - 70 years
 
14

 
14

Common general
5 - 70 years
 
335

 
338

Utility plant
 
 
4,645

 
4,589

Accumulated depreciation and amortization
 
 
(1,673
)
 
(1,629
)
Utility plant, net
 
 
2,972

 
2,960

Other non-regulated, net of accumulated depreciation and amortization
70 years
 
2

 
2

Plant, net
 
 
2,974

 
2,962

Construction work-in-progress
 
 
101

 
113

Property, plant and equipment, net
 
 
$
3,075

 
$
3,075