CHAPTER 6. ENERGY USE CHARACTERIZATION

TABLE OF CONTENTS

6.1 PURPOSE OF THE DOCUMENT ................................................................................. 6­1

6.2 OPERATING HOURS .................................................................................................... 6­1

6.3 RESULTS OF THE ENERGY USE CHARACTERIZATION ...................................... 6­9

6.3.1 General Service Fluorescent Lamps .................................................................... 6­9

6.3.2 Incandescent Reflector Lamps........................................................................... 6­13

REFERENCES .......................................................................................................................... 6­16

LIST OF TABLES

Table 6.2.1 Average Operating Hours by Sector and Lamp Type.............................................. 6­3

Table 6.2.2 Representative Operating Hours Used in the IRL National Impact Analysis ......... 6­5

Table 6.3.1 4­Foot Medium Bipin T8 GSFL 3­Lamp System Power Rating and Annual Energy

Consumption, Commercial and Industrial Sectors .................................................................... 6­10

Table 6.3.2 4­Foot Medium Bipin T12 GSFL 3­Lamp System Power Rating and Annual Energy

Consumption, Commercial and Industrial Sectors .................................................................... 6­10

Table 6.3.3 4­Foot Medium Bipin T8 GSFL 2­Lamp System Power Rating and Annual Energy

Consumption, Residential Sector Average Operating Hours .................................................... 6­11

Table 6.3.4 4­Foot Medium Bipin T12 GSFL 2­Lamp System Power Rating and Annual Energy

Consumption, Residential Sector Average Operating Hours .................................................... 6­11

Table 6.3.5 4­Foot Medium Bipin T8 GSFL 2­Lamp System Power Rating and Annual Energy

Consumption, Residential Sector High Operating Hours.......................................................... 6­11

Table 6.3.6 4­Foot Medium Bipin T12 GSFL 2­Lamp System Power Rating and Annual Energy

Consumption, Residential Sector High Operating Hours.......................................................... 6­12

Table 6.3.7 4­Foot T5 Miniature Bipin Standard Output GSFL 2­Lamp System Power Rating

and Annual Energy Consumption, Commercial and Industrial Sectors.................................... 6­12

Table 6.3.8 4­Foot T5 Miniature Bipin High Output GSFL 2­Lamp System Power Rating and

Annual Energy Consumption, Commercial and Industrial Sectors........................................... 6­12

Table 6.3.9 8­Foot T12 Single­Pin Slimline GSFL 2­Lamp System Power Rating and Annual

Energy Consumption, Commercial and Industrial Sectors........................................................ 6­12

Table 6.3.10 8­Foot T8 Single­Pin Slimline GSFL 2­Lamp System Power Rating and Annual

Energy Consumption ................................................................................................................. 6­13

Table 6.3.11 8­Foot T12 Recessed Double Contact HO GSFL 2­Lamp System Power Rating and

Annual Energy Consumption..................................................................................................... 6­13

Table 6.3.12. 8­Foot T8 Recessed Double Contact HO GSFL 2­Lamp System Power Rating and

Annual Energy Consumption..................................................................................................... 6­13

Table 6.3.13 IRL Power Rating and Annual Energy Consumption, 90WPAR38.................... 6­14

Table 6.3.14 IRL Power Rating and Annual Energy Consumption, 75WPAR38.................... 6­14

Table 6.3.15 IRL Power Rating and Annual Energy Consumption, 50WPAR30.................... 6­15

6­i

EE-2006-STD-0131 COMMENT 37.2
6

LIST OF FIGURES

Figure 6.2.1 Residential Sector IRL Annual Operating Hour Distribution by Building Type... 6­3

Figure 6.2.2 Residential Sector GSFL Annual Operating Hour Distribution by Building Type 6­4

Figure 6.2.3 Residential Sector IRL Annual Operating Hour Distribution by Room Type ....... 6­5

Figure 6.2.4 Commercial Sector GSFL Annual Operating Hour Distribution by Building Type 6­

Figure 6.2.5 Commercial Sector IRL Annual Operating Hour Distribution by Building Type . 6­7

Figure 6.2.6 Industrial Sector GSFL Annual Operating Hour Distribution by Building Type .. 6­8

Figure 6.2.7 Industrial Sector IRL Annual Operating Hour Distribution by Building Type...... 6­9

6­ii

EE-2006-STD-0131 COMMENT 37.2
CHAPTER 6. ENERGY USE CHARACTERIZATION

6.1 PURPOSE OF THE DOCUMENT

This chapter presents the methodology the U.S. Department of Energy (DOE) follows to

estimate the annual energy consumption of the lamp and lamp­and­ballast designs DOE

considers in the rulemaking analyses. The results of this analysis, which represent typical energy

consumption in the field, are critical inputs to the life­cycle cost (LCC) and payback period

(PBP) analyses, described in Chapter 8, and the national impact analysis (NIA), described in

Chapter 10. DOE needs information on annual energy consumption to determine the potential

energy and operating cost savings to consumers from the use of more efficient equipment.

DOE determines the annual energy consumption of the lamp and lamp­and­ballast

designs using information on their rated power (i.e., the rate of energy they consume) and the

way consumers use them (i.e., operating hours per year). The engineering analysis (Chapter 5)

discusses the power ratings of lamp and lamp­and­ballast designs. The following sections

discuss the inputs and calculations DOE uses to develop annual operating hours and annual

energy consumption for the products considered in this analysis.

6.2 OPERATING HOURS

To characterize the country’s average use of lighting for a typical year, DOE develops

annual operating hours by sector and lamp category (i.e., general service fluorescent lamps

(GSFL) and incandescent reflector lamps (IRL)). For the LCC, DOE accounts for variability in

operating hours by developing a distribution of operating hours for the LCC spreadsheet. The

operating hour distributions capture variation across 13 census divisions and large States,

building types, and lamps for all sectors.a

In conjunction with data from the U.S. Lighting Market Characterization: Volume I

1 (LMC), DOE uses data from the Energy Information Administration’s (EIA) 2003 Commercial

2 Building Energy Survey (2003 CBECS), 2001 Residential Energy Consumption Survey (2001

3 4 RECS), and 2002 Manufacturer Energy Consumption Survey (2002 MECS). These EIA

studies provide information on the distribution of U.S. buildings by building type and census

division. The LMC, which is based on thousands of building audits and surveys, provides

national­level data on annual operating hours by building type and lamp type for all sectors.

These operating hours are broken down by application for the commercial and industrial sectors,

b and room type for the residential sector.

a Census divisions include New England, Middle Atlantic, East North Central, West North Central, South Atlantic,

East South Central, West South Central, Mountain, and Pacific. Large States include California, Florida, New York,

and Texas. Sectors include residential, commercial, and industrial.

b Residential sector room types include bathroom, bedroom, closet, dining room, family room, garage, hall, kitchen,

living room, office, outdoor, utility room, and other. Commercial and industrial sector applications include

6­1

EE-2006-STD-0131 COMMENT 37.2
DOE associates LMC operating hour data by building type with EIA data by building

type and census division to derive annual operating hours by census division and large States.

This allows DOE to correlate the electricity price distribution (Chapter 8), and sales tax

distribution (Chapter 7) with the operating hour distribution by census division and large States

in the LCC spreadsheet. The following paragraphs describe data sources DOE uses to develop

annual operating hours by sector.

For the residential sector, DOE uses RECS building data and LMC residential sector

operating hour data to develop a distribution of annual operating hours for IRL and GSFL. The

2001 RECS data indicates the probability that a certain building type resides within a census

division. The LMC indicates the occurrence of certain room types within a given building type

and the operating hour characteristics of IRL in these rooms. By using probabilities derived

from RECS, the LCC model selects a building of a certain type and census division or large

State. DOE then uses aggregated data from the LMC to associate average annual operating

hours per building type. DOE chose to aggregate operating hour data to the building level, rather

than at the room level, because DOE believes it more closely represents the impact on an

individual consumer. However, DOE does use operating hour data at the room level to perform

LCC sensitivity results (Appendix 8B).

DOE uses a similar approach to develop a distribution of annual operating hours in the

commercial sector for GSFL and IRL. However, instead of room type, DOE aggregates LMC

annual operating hour data by application to develop average annual operating hours by building

type. The 2003 CBECS data indicates the probability a certain building type in a certain census

division exists. Once the LCC model selects a building, DOE associates the aggregated LMC

annual operating hour average with the building type selected. Like the residential sector, DOE

chose to aggregate LMC operating hour data to the building level for the commercial and

industrial sectors because DOE believes it more closely represents the impact on consumers.

To develop a distribution of annual operating hours in the industrial sector, DOE uses an

approach consistent with that used for the commercial sector. The 2002 MECS data indicates the

probability a certain building type exists. DOE aggregates LMC annual operating hour data by

industrial application to develop average annual operating hours by building type. Once the

model selects a building, DOE associates the aggregated LMC operating hour average with the

building type selected. Because MECS does not provide the location of industrial sector

buildings, DOE uses population information from the 2007 census to establish the probability

that a certain industrial building exists in a certain census division or large State. Table 6.2.1

summarizes the weighted average operating hours per lamp type per sector.

assembly, athletic, bathroom, boarding, class, dining, display, exit, ext­archi, ext­park, exit­sign, exterior, food

preparation, hall, healthcare, office, ship/rec, shop, storage, task, unknown, and utility.

6­2

EE-2006-STD-0131 COMMENT 37.2
Table 6.2.1 Average Operating Hours by Sector and Lamp Type

Sector Lamp Type Average Annual Operating Hours

hrs/year

Residential IRL 884

GSFL 789

Commercial GSFL 3,435

IRL 3,450

Industrial GSFL 4,795

Figure 6.2.1 and Figure 6.2.2 display the variety of annual operating hours DOE uses for

IRL and GSFL, respectively, in the residential sector. DOE uses these annual operating hours in

the LCC calculation.

5

4 3

2

1

0%

10%

20%

30%

40%

50%

60%

70%

Residential Sector IRL Probability

1: Mobile home

2: Single­family detached

3: Single­family attached

4: Multifamily 2­4 units

5: Multifamily > 4 units

863 929 891 798 765

Annual Operating Hours by Building Type (hrs/year)

Figure 6.2.1 Residential Sector IRL Annual Operating Hour Distribution by Building

Type

6­3

EE-2006-STD-0131 COMMENT 37.2
5

4 3

2

1

0%

10%

20%

30%

40%

50%

60%

70%

Residential Sector GSFL Probability

1: Mobile home

2: Single­family detached

3: Single­family attached

4: Multifamily 2­4 units

5: Multifamily > 4 units

686 806 739 806 790

Annual Operating Hours by Building Type (hrs/year)

Figure 6.2.2 Residential Sector GSFL Annual Operating Hour Distribution by Building

Type

To estimate five of the most likely annual operating hour characteristics of IRL in the

residential sector in the NIA, DOE uses information from a residential IRL annual operating

hour distribution by room type developed with data from LMC and RECS (Figure 6.2.3). DOE

uses the mean (884 hrs/year) and standard deviation (230 hrs/year) of this distribution to develop

a normal distribution. From this normal distribution, DOE selects five different annual operating

hours to represent the annual operating hours of approximately 20 percent of residential IRL

sockets. Table 6.2.2 lists the five annual operating hours DOE uses in the NIA. For more

information on the use of these operating hours please refer to Chapter 9 of the TSD.

6­4

EE-2006-STD-0131 COMMENT 37.2
183

299382403414441453513577617665673720864921989

1027

1088

Annual Operating Hours (hrs/year)

Figure 6.2.3 Residential Sector IRL Annual Operating Hour Distribution by Room Type

Table 6.2.2 Representative Operating Hours Used in the IRL National Impact Analysis

Percentage of IRL Sockets

%

IRL Annual Operating Hours

hrs/year

20 590

20 764

20 884

20 1,005

20 1,179

Figure 6.2.4 and Figure 6.2.5 display the annual operating hour distributions for GSFL

and IRL, respectively, operating in the commercial sector. DOE uses this distribution of annual

operating hours in the LCC calculation.

6­5

Residential Sector IRL Probability

25%

20%

15%

10%

5%

0%

EE-2006-STD-0131 COMMENT 37.2
91: Other

Commercial Sector GSFL Probability

20%

18%

16%

14%

12%

10%

8%

6%

4%

2%

0%

2

1:

2:

Vacant

Office

8: Outpatient health care

11: Refrigerated warehouse

16: Inpatient health care

17: Nursing

4:

5:

Laboratory

Nonrefrigerated warehouse

12: Religious worship

13: Public assembly

18: Lodging

25: Retail other than

6:

7:

Food sales

Public order and safety

14: Education

15: Food service

mall

26: Service

5

26

25

14 12

15 13

1

6

7

8 18

91

4 11 16 17

3,545

3,686

4,973

3,460

5,224

3,570

3,331

3,819

1,705

2,570

2,643

4,598

5,751

4,385

3,780

3,681

3,394

3,638

Annual Operating Hours by Building Type (hrs/year)

Figure 6.2.4 Commercial Sector GSFL Annual Operating Hour Distribution by Building

Type

6­6

EE-2006-STD-0131 COMMENT 37.2
15: Food service 91: Other

Commercial Sector IRL Probability

20%

18%

16%

14%

12%

10%

8%

6%

4%

2%

0%

2

5: Nonrefrigerated warehouse

Public order and safety

4:

1: Vacant

2: Office

6: Food sales

Laboratory warehouse

8: Outpatient health care

11: Refrigerated

12: Religious worship

13: Public assembly

18: Lodging

16: Inpatient health care

17: Nursing

25: Retail other than

mall

7: 26: Service

5

14: Education

26

25

14 12

15 13

1

6

7

8 18

91

4 11 16 17

3,598

3,712

4,993

3,399

5,337

3,425

3,389

3,558

1,609

2,659

2,761

4,572

5,851

4,254

3,653

3,763

3,397

3,747

Annual Operating Hours by Building Type (hrs/year)

Figure 6.2.5 Commercial Sector IRL Annual Operating Hour Distribution by Building

Type

Figure 6.2.6 and Figure 6.2.7 display the annual operating hour distribution for GSFL and

IRL operating in the industrial sector. DOE uses this distribution of annual operating hours in

the LCC calculation.

6­7

EE-2006-STD-0131 COMMENT 37.2
20%

Industrial Sector GSFL Probability

34 18%

16%

14%

12%

27

10%

20. Food & kindred

products

21. Tobacco

22. Textile mill

23. Apparel & other

textile products

24. Lumber & wood

products

25. Furniture &

26. Paper & allied

28. Chemicals & allied prorducts

fixtures

products

27. Printing & publishing

products

29. Petroleum & coal products

30. Rubber & miscellaneous

plastics products

31. Leather and leather

products

32. Stone, clay & glass

products

33. Primary metal industries

34. Fabricated metal

35. Industrial

machinery & equip.

36. Electronic & other

electric equip.

37. Transportation

equip.

38. Instruments &

related products.

39. Miscellaneous

35 20

8%

32 6% 24 30 25

28 36

37 4% 22 23

31

29

26 33 38

2%

21

0%

5,869

5,091

4,911

3,647

5,707

3,888

5,893

5,323

5,274

5,300

5,475

4,516

5,387

5,680

4,032

5,167

4,454

5,976

3,592

2,831

Annual Operating Hours by Building Type (hrs/year)

Figure 6.2.6 Industrial Sector GSFL Annual Operating Hour Distribution by Building

Type

6­8

39

EE-2006-STD-0131 COMMENT 37.2
20%

Industrial Sector IRL Probability

34 18%

16%

14%

12%

27

10%

35 20

8%

32 6% 24 30 25

28 36

37 4% 22 23

26 33 38

2% 29

31 21

0%

20. Food & kindred

products

21. Tobacco

22. Textile mill

23. Apparel & other

textile products

24. Lumber & wood

products

25. Furniture &

fixtures

26. Paper & allied

products

27. Printing & publishing 34. Fabricated metal

28. Chemicals & allied

products

29. Petroleum & coal products

30. Rubber & miscellaneous

plastics products

31. Leather and leather

products

32. Stone, clay & glass

products

33. Primary metal industries

prorducts

35. Industrial

machinery & equip.

36. Electronic & other

electric equip.

37. Transportation

equip.

38. Instruments &

related products.

39. Miscellaneous

6,165

4,445

4,615

3,263

5,699

3,904

5,536

3,625

4,820

4,710

5,413

4,259

4,741

5,506

4,375

4,746

4,987

6,221

4,696

3,261

Annual Operating Hours by Building Type (hrs/year)

Figure 6.2.7 Industrial Sector IRL Annual Operating Hour Distribution by Building Type

6.3 RESULTS OF THE ENERGY USE CHARACTERIZATION

This section presents the annual energy use estimates for GSFL and IRL. DOE calculates

the annual energy consumption using annual operating hours and power rating estimates. The

annual energy consumption results use average annual operating hours. DOE uses the annual

energy consumption results in the LCC and PBP analyses and the NIA to calculate the operating

cost of systems and estimate the potential energy savings of efficacy levels (ELs).

6.3.1 General Service Fluorescent Lamps

Using annual operating hours and system power ratings, DOE calculates the annual

energy consumption of the entire lamp­and­ballast system. The following paragraphs detail (1)

the power ratings for all the GSFL systems DOE assesses in the LCC and PBP analysis for each

product class representing GSFL; and (2) average annual energy consumption per lamp­andballast system using the U.S. weighted average of annual operating hours in each sector. The

average GSFL annual operating hours for the U.S. residential, commercial, and industrial sectors

are 789 hours, 3,435 hours, and 4,795 hours, respectively. For the residential lamp failure event,

however, residential high operating hours of 1,210 hours per year are used. This is because a

5 measure life report has shown that ballasts in the residential sector last approximately 15 years.

6­9

39

EE-2006-STD-0131 COMMENT 37.2
The usage of 1,210 operating hours leads to a baseline lamp lifetime of approximately 12.5

years, which allows the lamp failure event to occur. The usage of 789 hours would result in a

ballast reaching the end of its life before a lamp failure. Appendix 6A presents the energy

consumption rates for the systems DOE uses in the NIA. As discussed in the engineering

analysis (Chapter 5), DOE pairs lamps with ballasts of different ballast factors to adjust light

output, creating a number of system designs.

Table 6.3.1 4­Foot Medium Bipin T8 GSFL 3­Lamp System Power Rating and Annual

Energy Consumption, Commercial and Industrial Sectors

Technology Option System Power Rating Annual Energy Consumption

Commercial Industrial

W kWh kWh

1.18BF32 Elec* 113.3 389.3 543.4

1.18BF25 Elec 87.7 301.4 420.7

1.0BF32 Elec 97.4 334.6 467.0

1.0BF30 Elec 90.3 310.2 433.0

1.0BF28 Elec 84.0 288.5 402.8

0.88BF32 Elec 86.8 298.1 416.1

0.88BF30 Elec 80.4 276.2 385.5

0.88BF28 Elec 74.7 256.8 358.4

0.88BF25 Elec 66.5 228.4 318.9

0.78BF32 Elec 77.9 267.7 373.7

0.78BF30 Elec 72.2 247.8 346.0

0.78BF28 Elec 67.0 230.3 321.5

0.75BF32 Elec 75.3 258.6 361.0

0.71BF32 Elec 71.7 246.4 344.0

W = watts

kWh = kilowatt hours

*“1.18BF32Elec” indicates a lamp­ballast system consisting of a 32W lamp paired with an electronic

ballast of a 1.18 ballast factor.

Table 6.3.2 4­Foot Medium Bipin T12 GSFL 3­Lamp System Power Rating and Annual

Energy Consumption, Commercial and Industrial Sectors

Technology

Option

System Power Rating Annual Energy Consumption

Commercial Industrial

W kWh kWh

0.95BF40 Mag* 129.0 443.1 618.6

0.88BF40 Elec 107.7 369.8 516.2

0.88BF34 Elec 91.7 314.8 439.5

0.87BF40 Elec 107.0 367.5 512.9

0.86BF34 Elec 90.3 310.2 433.0

*“0.95BF40 Mag” indicates a lamp­ballast system of a 40W lamp paired with a magnetic ballast of a

0.95 ballast factor.

6­10

EE-2006-STD-0131 COMMENT 37.2
Table 6.3.3 4­Foot Medium Bipin T8 GSFL 2­Lamp System Power Rating and Annual

Energy Consumption, Residential Sector Average Operating Hours

Technology Option System Power Rating Annual Energy Consumption

Residential

W kWh

0.88BF32 Elec 58.6 46.2

0.88BF25 Elec 45.4 35.8

0.78BF32 Elec 51.6 40.7

0.78BF30 Elec 48.9 38.6

0.78BF28 Elec 45.6 36.0

0.78BF25 Elec 40.5 31.9

0.75BF32 Elec 49.6 39.1

0.75BF30 Elec 47.2 37.2

0.71BF32 Elec 46.8 36.9

Table 6.3.4 4­Foot Medium Bipin T12 GSFL 2­Lamp System Power Rating and Annual

Energy Consumption, Residential Sector Average Operating Hours

Technology Option System Power Rating Annual Energy Consumption

Residential

W kWh

0.85BF34 Elec 62.0 48.9

0.75BF34 Elec 48.0 37.9

0.68BF40 Mag 70.0 55.2

0.66BF34 Mag 60.0 47.3

0.65BF40 Elec 58.0 45.8

Table 6.3.5 4­Foot Medium Bipin T8 GSFL 2­Lamp System Power Rating and Annual

Energy Consumption, Residential Sector High Operating Hours

Technology Option System Power Rating Annual Energy Consumption

Residential

W kWh

0.78BF32 Elec 51.6 62.5

0.78BF28 Elec 45.6 55.2

0.78BF25 Elec 40.5 49.0

0.75BF32 Elec 49.6 60.0

0.75BF30 Elec 47.2 57.1

0.71BF32 Elec 46.8 56.6

6­11

EE-2006-STD-0131 COMMENT 37.2
Table 6.3.6 4­Foot Medium Bipin T12 GSFL 2­Lamp System Power Rating and Annual

Energy Consumption, Residential Sector High Operating Hours

Technology Option System Power Rating Annual Energy Consumption

Residential

W kWh

0.75BF34 Elec 48.0 58.1

0.65BF40 Elec 58.0 70.2

Table 6.3.7 4­Foot T5 Miniature Bipin Standard Output GSFL 2­Lamp System Power

Rating and Annual Energy Consumption, Commercial and Industrial Sectors

Technology

Option

System Power Rating Annual Energy Consumption

Commercial Industrial

W kWh kWh

1.15BF28 Elec 70.7 242.8 339.0

1.15BF26 Elec 67.5 231.7 323.5

0.95BF28 Elec 61.2 210.3 293.6

0.9BF28 Elec 58.9 202.2 282.3

0.9BF26 Elec 54.4 186.7 260.7

Table 6.3.8 4­Foot T5 Miniature Bipin High Output GSFL 2­Lamp System Power Rating

and Annual Energy Consumption, Commercial and Industrial Sectors

Technology

Option

System Power Rating Annual Energy Consumption

Commercial Industrial

W kWh kWh

1.0BF54 Elec 120.0 412.2 575.4

1.0BF51 Elec 117.0 401.9 561.0

Table 6.3.9 8­Foot T12 Single­Pin Slimline GSFL 2­Lamp System Power Rating and

Annual Energy Consumption, Commercial and Industrial Sectors

Technology

Option

System Power Rating Annual Energy Consumption

Commercial Industrial

W kWh kWh

0.94BF75 Mag 158.0 542.7 757.6

0.88BF60 Mag 126.0 432.8 604.2

0.88BF75 Elec 135.0 463.7 647.3

0.88BF60 Elec 110.0 377.9 527.5

0.85BF75 Elec 132.0 453.4 633.0

0.85BF60 Elec 107.0 367.5 513.1

6­12

EE-2006-STD-0131 COMMENT 37.2
Table 6.3.10 8­Foot T8 Single­Pin Slimline GSFL 2­Lamp System Power Rating and

Annual Energy Consumption

Technology

Option

System Power Rating Annual Energy Consumption

Commercial Industrial

W kWh kWh

1.18BF59 Elec 149.9 515.0 718.9

0.88BF55 Elec 102.0 350.4 489.2

0.88BF57 Elec 107.5 369.3 515.5

0.88BF59 Elec 112.8 387.5 541.0

0.85BF57 Elec 106.0 364.1 508.3

0.85BF59 Elec 109.1 374.8 523.2

0.78BF57 Elec 102.5 352.1 491.5

0.78BF59 Elec 100.4 345.0 481.6

Table 6.3.11 8­Foot T12 Recessed Double Contact HO GSFL 2­Lamp System Power

Rating and Annual Energy Consumption

Technology

Option

System Power Rating Annual Energy Consumption

Commercial Industrial

W kWh kWh

0.95BF110 Mag 237.0 814.1 1136.4

0.91BF95 Mag 203.0 697.3 973.4

0.9BF110 Elec 211.5 726.6 1014.3

0.9BF95 Elec 185.6 637.7 890.2

0.89BF95 Elec 181.3 622.8 869.4

0.88BF110 Elec 205.4 705.4 984.8

0.88BF95 Elec 177.0 607.9 848.6

Table 6.3.12. 8­Foot T8 Recessed Double Contact HO GSFL 2­Lamp System Power Rating

and Annual Energy Consumption

Technology

Option

System Power Rating Annual Energy Consumption

Commercial Industrial

W kWh kWh

0.88BF86 Elec 160.0 549.6 767.2

0.81BF86 Elec 151.0 518.7 724.1

6.3.2 Incandescent Reflector Lamps

Because an IRL does not require a ballast to operate, the rate of energy usage is simply

the rated power of the lamp. Table 6.3.13 to Table 6.3.15 detail power ratings for all of the IRL

lamp designs. DOE calculates the annual energy consumption based on the U.S. weighted

average annual operating hours for IRL in the residential and commercial sectors as 884 hours

and 3,450 hours, respectively. Appendix 6A lists the annual energy consumption of those IRL

lamp designs used in the NIA.

6­13

EE-2006-STD-0131 COMMENT 37.2
Table 6.3.13 IRL Power Rating and Annual Energy Consumption, 90WPAR38

Technology

Option

Lamp

Efficacy

Lamp

Power

Rating

Annual Energy Consumption

Commercial Residential

lm/W W kWh kWh

Baseline 14.6 90.0 310.5 79.6

EL1 15.3 85.7 295.7 75.8

EL2 15.9 82.5 284.6 72.9

EL2 16.6 79.0 272.6 69.9

EL3 18.0 70.0 241.5 61.9

EL4 19.8 66.0 227.7 58.4

EL5 21.0 60.0 207.0 53.1

Table 6.3.14 IRL Power Rating and Annual Energy Consumption, 75WPAR38

Technology

Option

Lamp

Efficacy

Lamp

Power

Rating

Annual Energy Consumption

Commercial Residential

lm/W W kWh kWh

Baseline 14.0 75.0 258.8 66.3

EL1 14.6 71.7 247.4 63.4

EL2 15.3 68.8 237.4 60.8

EL2 15.9 66.0 227.7 58.4

EL3 17.5 60.0 207.0 53.1

EL4 19.1 55.0 189.8 48.6

EL5 20.3 51.7 178.4 45.7

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EE-2006-STD-0131 COMMENT 37.2
Table 6.3.15 IRL Power Rating and Annual Energy Consumption, 50WPAR30

Technology

Option

Lamp

Efficacy

Lamp

Power

Rating

Annual Energy Consumption

Commercial Residential

lm/W W kWh kWh

Baseline 12.6 50.0 172.5 44.2

EL1 13.2 47.8 164.9 42.3

EL2 13.5 46.0 158.7 40.7

EL2 14.0 45.0 155.3 39.8

EL3 15.1 41.8 144.2 37.0

EL4 17.0 40.0 138.0 35.4

EL5 19.1 40.0 138.0 35.4

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EE-2006-STD-0131 COMMENT 37.2
REFERENCES

1 U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy. Energy

Conservation Program for Consumer Products: Final Report: U.S. Lighting Market

Characterization, Volume I: National Lighting Inventory and Energy Consumption Estimate.

2002. Washington, D.C.

< www.eere.energy.gov/buildings/info/documents/pdfs/lmc_vol1_final.pdf>

2 U.S. Department of Energy, Energy Information Administration. Commercial Building Energy

Consumption Survey: Micro­level data, file 2 Building Activities, Special Measures of Size, and

Multi­building Facilities. 2003. Washington, D.C.

<http://www.eia.doe.gov/emeu/cbecs/public_use.html>

3 U.S. Department of Energy, Energy Information Administration. Residential Energy

Consumption Survey: File 1: Housing Unit Characteristic. 2006. Washington, D.C.

<http://www.eia.doe.gov/emeu/recs/recs2001/publicuse2001.html>

4 U.S. Department of Energy, Energy Information Administration. Manufacturing Energy

Consumption Survey, Table 1.4: Number of Establishments by First Use of Energy for All

Purposes (Fuel and Nonfuel). 2002. Washington, D.C.

<http://www.eia.doe.gov/emeu/mecs/mecs2002/data02/shelltables.html>

5 Economic Research Associates, Inc., and Quantec, LLC. Revised/Updated EULs Based On

Retention And Persistence Studies Results. Southern California Edison, 2005.

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