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Property, Plant and Equipment (Tables)
 12 Months Ended
Dec. 31, 2019
Property, Plant and Equipment [Abstract]  
Schedule of Property, Plant and Equipment The composite weighted average depreciation rates, excluding nuclear fuel, are included in the table that follows.
 
Years Ended December 31,
 
2019

 
2018

 
2017

Duke Energy
3.1
%
 
3.0
%
 
2.8
%
Duke Energy Carolinas
2.8
%
 
2.8
%
 
2.8
%
Progress Energy
3.1
%
 
2.9
%
 
2.6
%
Duke Energy Progress
3.1
%
 
2.9
%
 
2.6
%
Duke Energy Florida
3.1
%
 
3.0
%
 
2.8
%
Duke Energy Ohio
2.6
%
 
2.8
%
 
2.8
%
Duke Energy Indiana
3.3
%
 
3.3
%
 
3.0
%
Piedmont
2.4
%
 
2.5
%
 
2.3
%

The following tables summarize the property, plant and equipment for Duke Energy and its subsidiary registrants.
 
December 31, 2019
 
Estimated
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Useful
 
 
 
Duke

 
 
 
Duke

 
Duke

 
Duke

 
Duke

 
 
 
Life
 
Duke

 
Energy

 
Progress

 
Energy

 
Energy

 
Energy

 
Energy

 
 
(in millions)
(Years)
 
Energy

 
Carolinas

 
Energy

 
Progress

 
Florida

 
Ohio

 
Indiana

 
Piedmont
Land
 
 
$
2,091

 
$
520

 
$
884

 
$
449

 
$
435

 
$
150

 
$
117

 
$
388

Plant – Regulated
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Electric generation, distribution and transmission
15-100
 
111,739

 
42,723

 
48,142

 
30,018

 
18,124

 
5,838

 
15,032

 
—

Natural gas transmission and distribution
4-73
 
9,839

 
—

 
—

 
—

 
—

 
2,892

 
—

 
6,947

Other buildings and improvements
23-90
 
1,810

 
714

 
401

 
162

 
239

 
269

 
278

 
148

Plant – Nonregulated
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Electric generation, distribution and transmission
5-30
 
5,103

 
—

 
—

 
—

 
—

 
—

 
—

 
—

Other buildings and improvements
25-35
 
488

 
—

 
—

 
—

 
—

 
—

 
—

 
—

Nuclear fuel

 
3,253

 
1,891

 
1,362

 
1,362

 
—

 
—

 
—

 
—

Equipment
3-25
 
2,313

 
546

 
665

 
452

 
213

 
319

 
205

 
128

Construction in process

 
6,102

 
1,389

 
2,149

 
1,114

 
1,035

 
504

 
381

 
531

Other
2-40
 
4,916

 
1,139

 
1,467

 
1,046

 
411

 
269

 
292

 
304

Total property, plant and equipment(a)(e)
 
 
147,654

 
48,922

 
55,070

 
34,603

 
20,457

 
10,241

 
16,305

 
8,446

Total accumulated depreciation – regulated(b)(c)
 
 
(43,419
)
 
(16,525
)
 
(17,159
)
 
(11,915
)
 
(5,236
)
 
(2,843
)
 
(5,233
)
 
(1,681
)
Total accumulated depreciation – nonregulated(d)(e)
 
 
(2,354
)
 
—

 
—

 
—

 
—

 
—

 
—

 
—

Generation facilities to be retired, net
 
 
246

 
—

 
246

 
246

 
—

 
—

 
—

 
—

Total net property, plant and equipment
 
 
$
102,127


$
32,397


$
38,157


$
22,934


$
15,221


$
7,398

 
$
11,072

 
$
6,765

(a)
Includes finance leases of $952 million, $211 million, $443 million, $308 million, $135 million and $10 million at Duke Energy, Duke Energy Carolinas, Progress Energy, Duke Energy Progress, Duke Energy Florida and Duke Energy Indiana, respectively, primarily within Plant – Regulated. The Progress Energy, Duke Energy Progress and Duke Energy Florida amounts are net of $143 million, $17 million and $126 million, respectively, of accumulated amortization of finance leases.
(b)
Includes $1,807 million, $1,082 million, $725 million and $725 million of accumulated amortization of nuclear fuel at Duke Energy, Duke Energy Carolinas, Progress Energy and Duke Energy Progress, respectively.
(c)
Includes accumulated amortization of finance leases of $6 million, $13 million and $3 million at Duke Energy, Duke Energy Carolinas and Duke Energy Indiana, respectively.
(d)
Includes accumulated amortization of finance leases of $20 million at Duke Energy.
(e)
Includes gross property, plant and equipment cost of consolidated VIEs of $5,747 million and accumulated depreciation of consolidated VIEs of $1,041 million at Duke Energy.
 
December 31, 2018
 
Estimated
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Useful
 
 
 
Duke

 
 
 
Duke

 
Duke

 
Duke

 
Duke

 
 
 
Life
 
Duke

 
Energy

 
Progress

 
Energy

 
Energy

 
Energy

 
Energy

 
 
(in millions)
(Years)
 
Energy

 
Carolinas

 
Energy

 
Progress

 
Florida

 
Ohio

 
Indiana

 
Piedmont
Land
 
 
$
2,072

 
$
472

 
$
868

 
$
445

 
$
423

 
$
136

 
$
116

 
$
448

Plant – Regulated
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Electric generation, distribution and transmission
15-100
 
100,706

 
38,468

 
42,760

 
26,147

 
16,613

 
5,182

 
14,292

 
—

Natural gas transmission and distribution
12-80
 
8,808

 
—

 
—

 
—

 
—

 
2,719

 
—

 
6,089

Other buildings and improvements
24-90
 
1,966

 
681

 
636

 
295

 
341

 
270

 
253

 
126

Plant – Nonregulated
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Electric generation, distribution and transmission
5-30
 
4,410

 
—

 
—

 
—

 
—

 
—

 
—

 
—

Other buildings and improvements
25-35
 
494

 
—

 
—

 
—

 
—

 
—

 
—

 
—

Nuclear fuel
 
 
3,460

 
1,898

 
1,562

 
1,562

 
—

 
—

 
—

 
—

Equipment
3-55
 
2,141

 
467

 
565

 
399

 
166

 
384

 
178

 
141

Construction in process
 
 
5,726

 
1,678

 
2,515

 
1,659

 
856

 
412

 
325

 
382

Other
3-40
 
4,675

 
1,077

 
1,354

 
952

 
393

 
257

 
279

 
300

Total property, plant and equipment(a)(d)
 
 
134,458

 
44,741

 
50,260

 
31,459

 
18,792

 
9,360

 
15,443

 
7,486

Total accumulated depreciation – regulated(b)(c)(d)
 
 
(41,079
)
 
(15,496
)
 
(16,398
)
 
(11,423
)
 
(4,968
)
 
(2,717
)
 
(4,914
)
 
(1,575
)
Total accumulated depreciation – nonregulated(c)(d)
 
 
(2,047
)
 
—

 
—

 
—

 
—

 
—

 
—

 
—

Generation facilities to be retired, net
 
 
362

 
—

 
362

 
362

 
—

 
—

 
—

 
—

Total net property, plant and equipment
 
 
$
91,694

 
$
29,245

 
$
34,224

 
$
20,398

 
$
13,824

 
$
6,643

 
$
10,529

 
$
5,911

(a)
Includes finance leases of $1,237 million, $135 million, $257 million, $137 million, $120 million, $73 million and $35 million at Duke Energy, Duke Energy Carolinas, Progress Energy, Duke Energy Progress, Duke Energy Florida, Duke Energy Ohio and Duke Energy Indiana, respectively, primarily within Plant – Regulated. The Progress Energy, Duke Energy Progress and Duke Energy Florida amounts are net of $131 million, $14 million and $117 million, respectively, of accumulated amortization of finance leases.
(b)
Includes $1,947 million, $1,087 million, $860 million and $860 million of accumulated amortization of nuclear fuel at Duke Energy, Duke Energy Carolinas, Progress Energy and Duke Energy Progress, respectively.
(c)
Includes accumulated amortization of finance leases of $61 million, $12 million, $20 million and $10 million at Duke Energy, Duke Energy Carolinas, Duke Energy Ohio and Duke Energy Indiana, respectively.
(d)
Includes gross property, plant and equipment cost of consolidated VIEs of $4,007 million and accumulated depreciation of consolidated VIEs of $698 million at Duke Energy.
Schedule Of Capitalized Interest
The following tables present capitalized interest, which includes the debt component of AFUDC.
 
Years Ended December 31,
(in millions)
2019

 
2018

 
2017

Duke Energy
$
159

 
$
161

 
$
128

Duke Energy Carolinas
30

 
35

 
45

Progress Energy
31

 
51

 
45

Duke Energy Progress
28

 
26

 
21

Duke Energy Florida
3

 
25

 
24

Duke Energy Ohio
22

 
17

 
10

Duke Energy Indiana
26

 
27

 
9

Piedmont
26

 
17

 
12