Summary: Modeling the Energy Consequences of the Cell Phone Revolution Introduction


Appendix C – Landline Telephone Usage in Barrels of Oil per Day



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Appendix C – Landline Telephone Usage in Barrels of Oil per Day

Year

U.S. Household Projections

Percentage of Households with Landline Telephones

Number of Households with Landline Phones

Total Energy Used by Landline Phones (Barrels of Oil per Day)

 

U.S. Bureau of the Census

Centers for Disease Control

Calculated

Calculated

1990

91,966,534

100.00

91,966,534

13,611

1991

93,097,766

100.00

93,097,766

13,779

1992

94,228,997

100.00

94,228,997

13,946

1993

95,360,228

100.00

95,360,228

14,114

1994

96,491,460

100.00

96,491,460

14,281

1995

97,722,883

100.00

97,722,883

14,463

1996

98,856,603

100.00

98,856,603

14,631

1997

99,965,175

100.00

99,965,175

14,795

1998

101,042,864

100.00

101,042,864

14,955

1999

102,118,600

100.00

102,118,600

15,114

2000

103,245,963

100.00

103,245,963

15,281

2001

104,344,445

100.00

104,344,445

15,443

2002

105,456,124

97.49

102,812,188

15,217

2003

106,566,127

94.41

100,613,648

14,891

2004

107,672,899

91.20

98,197,684

14,534

2005

108,818,659

88.80

96,630,969

14,302

2006

109,981,970

84.10

92,494,837

13,690

2007

111,162,259

81.90

91,041,890

13,475

2008

112,362,848

79.02

88,790,728

13,141

2009

113,567,967

75.94

86,246,759

12,765

2010

114,825,428

72.86

83,666,728

12,383

2011

115,722,392

69.79

80,757,698

11,952

2012

116,853,623

66.71

77,949,714

11,537

2013

117,984,855

63.63

75,072,078

11,111

2014

119,116,086

60.55

72,124,790

10,675

2015

120,247,317

57.47

69,107,851

10,228

2016

121,378,549

54.39

66,021,261

9,771

2017

122,509,780

51.31

62,865,019

9,304

2018

123,641,011

48.24

59,639,125

8,827

2019

124,772,243

45.16

56,343,580

8,339

2020

125,903,474

42.08

52,978,383

7,841

2021

127,034,705

39.00

49,543,535

7,333

2022

128,165,937

35.92

46,039,035

6,814

2023

129,297,168

32.84

42,464,884

6,285

2024

130,428,399

29.76

38,821,081

5,746

2025

131,559,631

26.69

35,107,627

5,196

2026

132,690,862

23.61

31,324,521

4,636

2027

133,822,093

20.53

27,471,764

4,066

2028

134,953,325

17.45

23,549,355

3,485

2029

136,084,556

14.37

19,557,295

2,895

2030

137,215,787

11.29

15,495,583

2,293

2031

138,347,019

8.21

11,364,219

1,682

2032

139,478,250

5.14

7,163,204

1,060

2033

140,609,481

2.06

2,892,538

428

2034

141,740,713

0.00

0

0

Note on “U.S. Households Projections”: The U.S. Bureau of the Census published figures of their projections for the number of households in the United States between 1995 and 2010 (As indicated by the boxed in region of the above chart). After determining that the data follows a linear model, we used a linear regression to extrapolate the data beyond the date ranges presented by the U.S. Bureau of the Census.

Note on “Percentage of Households with Landline Phones”: The Centers for Disease Control published figures of their findings of the percentage of households with landline phones in bi-annual increments. After determining that the data followed a linear model, we used a linear regression on their bi-annual figures to obtain the annual figures used in our report. In order to compare the bi-annual data to other annual data, we included only the data collected for the second half of the listed year.

Note on “Number of Households with Landline Phones”: The figures in this data set are derived by multiplying the number of U.S. households by the percentage of households with landline phones.

Note on “Total Energy Used by Landline Phones (Barrels of Oil per Day)”: The figures in this data set are derived by the method described in Requirement 1 using the data from Table 1.3 and Table 1.4 and using the conversion rates found in Bio-energy Conversion Factors.

Appendix D – Cellular Telephone Usage in Barrels of Oil per Day

Year

U.S. Population Projections

Number of Cell Phone Subscriptions (Millions)

Percent of Population with Cell Phones

Total Number of People with Cell Phones

Total Energy Used by Cell Phones (Barrels of Oil per Day)

 

U.S. Bureau of the Census

Wireless Matrix Report

Calculated

Calculated

Caclulated

1990

247,459,004

0.0

 

 

0

1991

250,622,084

0.0

 

 

0

1992

253,785,164

0.0

 

 

0

1993

256,948,244

0.0

 

 

0

1994

260,111,324

0.0

0

0

0

1995

263,274,404

3.8

1.303997219

343,309,091

127

1996

266,437,484

24.3

8.192745666

2,182,854,545

806

1997

269,600,565

44.7

14.91985006

4,022,400,000

1,485

1998

272,763,645

69.2

22.83295491

6,228,000,000

2,300

1999

275,926,725

86.0

28.0509255

7,740,000,000

2,858

2000

282,158,336

109.5

34.92719776

9,855,000,000

3,639

2001

284,915,024

128.4

40.55946169

11,556,000,000

4,267

2002

287,501,476

141.0

44.13890383

12,690,000,000

4,686

2003

289,985,771

159.0

49.34724883

14,310,000,000

5,284

2004

292,805,643

182.0

55.94154482

16,380,000,000

6,049

2005

295,583,436

208.0

63.33237157

18,720,000,000

6,913

2006

298,442,420

233.0

70.26481021

20,970,000,000

7,744

2007

301,279,593

255.0

76.17508963

22,950,000,000

8,475

2008

304,228,257

269.5

79.73421088

24,257,400,000

8,958

2009

307,212,123

290.0

84.94764204

26,096,945,455

9,637

2010

310,232,863

310.4

90.05006961

27,936,490,909

10,316

2011

313,232,044

330.8

95.06063295

29,776,036,364

10,996

2012

316,265,537

351.3

99.96530801

31,615,581,818

11,675

2013

319,330,342

371.7

100

31,933,034,200

11,792

2014

322,422,965

 

100

32242296500

11,906

2015

325,539,790

 

100

32553979000

12,021

2016

328,677,531

 

100

32867753100

12,137

2017

331,833,494

 

100

33183349400

12,254

2018

335,005,223

 

100

33500522300

12,371

2019

338,190,395

 

100

33819039500

12,489

2020

341,386,665

 

100

34138666500

12,607

2021

344,591,727

 

100

34459172700

12,725

2022

347,803,053

 

100

34780305300

12,844

2023

351,018,246

 

100

35101824600

12,962

2024

354,235,045

 

100

35423504500

13,081

2025

357,451,620

 

100

35745162000

13,200

2026

360,666,783

 

100

36066678300

13,319

2027

363,879,699

 

100

36387969900

13,437

2028

367,090,055

 

100

36709005500

13,556

2029

370,297,901

 

100

37029790100

13,674

2030

373,503,674

 

100

37350367400

13,793

2031

376,708,065

 

100

37670806500

13,911

2032

379,912,056

 

100

37991205600

14,029

2033

383,116,539

 

100

38311653900

14,148

2034

386,322,606

 

100

38632260600

14,266

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