Table 3.20a. Light Usage by Census Region and Climate Zone, 

 Million U.S. Households, 1993

Light Usage

RSE Column Factor:

Total

Census Region Climate Zone

RSE

Row

Factors

Northeast Midwest South West

Fewer than

2,000 CDD and --

More

than

2,000

CDD

and

Fewer

than

4,000

HDD

More

than

7,000

HDD

5,500

to

7,000

HDD

4,000

to

5,499

HDD

Fewer

than

4,000

HDD

0.4 0.8 0.8 0.6 0.8 2.4 1.4 1.3 1.4 1.1

Total ..................................................... 96.6 19.5 23.3 33.5 20.4 8.7 26.5 22.5 17.8 21.2 6.6

Indoor Electric Lights

 Total Number Lights

 1 to 4 Hours

 None ............................................... 9.6 2.1 1.5 3.6 2.4 0.7 2.3 1.9 2.2 2.5 10.9

 1 ...................................................... 22.1 4.2 5.5 8.0 4.4 2.2 6.2 4.7 4.2 4.9 7.8

 2 ...................................................... 27.4 5.7 6.2 9.5 6.1 2.3 7.4 6.5 5.2 6.1 7.0

 3 ...................................................... 16.8 3.6 4.4 5.5 3.3 1.7 5.0 3.8 2.6 3.6 8.8

 4 ...................................................... 9.2 1.7 2.2 3.3 1.9 0.8 2.2 2.6 1.7 1.9 10.8

 5 or More ........................................ 11.5 2.3 3.4 3.5 2.3 1.0 3.5 3.0 1.8 2.2 11.1

 4 to 12 Hours

 None ............................................... 13.4 2.0 2.2 5.9 3.3 0.9 2.5 2.6 3.4 4.1 10.2

 1 ...................................................... 20.8 4.4 5.2 7.0 4.2 1.8 6.0 5.1 3.7 4.3 6.9

 2 ...................................................... 26.4 5.7 6.8 8.3 5.6 2.5 8.1 6.4 4.7 4.8 5.9

 3 ...................................................... 16.7 3.5 4.5 5.5 3.3 2.0 4.7 3.8 2.4 3.8 7.2

 4 ...................................................... 9.2 1.8 2.1 3.1 2.1 0.8 2.6 2.1 1.7 2.0 8.9

 5 or More ........................................ 10.0 2.0 2.5 3.7 1.9 0.7 2.7 2.6 1.9 2.2 10.1

 More than 12 Hours per Day

 None ............................................... 66.4 14.0 16.1 20.9 15.3 6.5 18.5 14.9 12.6 14.0 4.7

 1 ...................................................... 16.6 3.2 3.7 6.8 3.0 1.2 4.3 4.4 2.9 3.9 9.0

 2 ...................................................... 7.6 1.4 2.0 3.2 1.0 0.6 2.2 1.9 1.2 1.8 11.4

 3 ...................................................... 3.3 0.5 0.8 1.5 0.5 0.2 0.9 0.8 0.6 0.9 14.8

 4 ...................................................... 1.5 0.3 0.4 0.6 0.3 0.1 0.4 0.4 0.3 0.3 23.1

 5 or More ........................................ 1.2 0.2 0.3 0.5 0.2 Q 0.3 0.2 0.3 0.3 26.8

 Incandescent Lights Used

 1 to 4 Hours per Day

 None ............................................... 14.8 3.1 2.8 5.4 3.4 1.1 3.7 2.9 3.3 3.8 9.0

 1 ...................................................... 24.4 4.7 5.7 9.0 5.0 2.4 6.6 5.5 4.5 5.5 7.6

 2 ...................................................... 25.3 5.1 5.9 8.7 5.6 2.3 7.0 5.7 4.6 5.7 6.7

 3 ...................................................... 15.3 3.2 4.1 5.1 3.0 1.5 4.4 3.8 2.6 3.1 9.0

 4 ...................................................... 7.5 1.5 1.7 2.6 1.7 0.7 1.7 2.1 1.6 1.4 11.1

 5 or More ........................................ 9.4 2.0 3.0 2.7 1.7 0.8 3.1 2.5 1.3 1.7 12.4

 4 to 12 Hours per Day

 None ............................................... 17.4 3.0 3.1 7.0 4.3 1.4 3.5 3.5 4.1 4.9 8.6

 1 ...................................................... 24.5 5.1 6.0 8.5 5.0 2.2 6.8 5.8 4.3 5.5 6.9

 2 ...................................................... 25.8 5.5 6.6 8.6 5.2 2.4 7.7 6.2 4.4 5.2 5.8

 3 ...................................................... 13.9 2.9 4.1 4.1 2.7 1.6 4.3 3.4 2.2 2.4 8.2

 4 ...................................................... 7.4 1.6 1.6 2.6 1.6 0.6 2.1 1.7 1.3 1.7 10.9

 5 or More ........................................ 7.5 1.4 1.9 2.7 1.5 0.6 2.2 1.9 1.4 1.5 11.5

 More than 12 Hours per Day

 None ............................................... 70.4 14.6 17.2 22.6 16.0 6.9 19.6 15.6 13.3 15.1 4.3

 1 ...................................................... 15.7 3.2 3.2 6.7 2.6 1.0 3.9 4.4 2.7 3.7 9.6

 2 ...................................................... 6.3 1.0 2.0 2.4 1.0 0.5 1.9 1.5 1.1 1.4 11.2

 3 ...................................................... 2.4 0.5 0.5 1.1 0.4 0.1 0.6 0.6 0.4 0.7 17.7

 4 ...................................................... 1.0 Q 0.3 0.3 0.2 Q 0.2 0.2 0.2 0.2 25.8

 5 or More ........................................ 0.8 Q 0.2 0.3 Q Q 0.2 0.2 0.2 0.2 26.9

See footnotes at end of table.

120 Energy Information Administration/Housing Characteristrics 1993
Table 3.20b. Light Usage by Census Region and Climate Zone, 

 Percent of U.S. Households, 1993

Light Usage

RSE Column Factor:

Total

Census Region Climate Zone

RSE

Row

Factors

Northeast Midwest South West

Fewer than

2,000 CDD and --

More

than

2,000

CDD

and

Fewer

than

4,000

HDD

More

than

7,000

HDD

5,500

to

7,000

HDD

4,000

to

5,499

HDD

Fewer

than

4,000

HDD

0.5 1.1 1.1 0.8 1.0 1.4 1.1 1.1 1.1 1.1

Total ..................................................... 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 0.0

Indoor Electric Lights

 Total Number Lights

 1 to 4 Hours

 None ............................................... 10.0 10.7 6.5 10.9 11.8 8.4 8.6 8.5 12.5 11.9 9.9

 1 ...................................................... 22.9 21.5 23.5 24.0 21.6 24.8 23.2 20.9 23.7 23.1 5.8

 2 ...................................................... 28.4 29.1 26.6 28.4 29.8 26.2 27.8 29.0 29.2 28.8 4.7

 3 ...................................................... 17.4 18.3 19.1 16.4 16.1 19.5 18.9 17.0 14.8 17.2 6.9

 4 ...................................................... 9.5 8.8 9.5 9.9 9.5 9.2 8.5 11.4 9.6 8.8 9.4

 5 or More ........................................ 11.9 11.6 14.7 10.4 11.2 11.8 13.1 13.2 10.3 10.3 9.1

 4 to 12 Hours

 None ............................................... 13.9 10.5 9.4 17.5 16.2 9.9 9.3 11.5 18.9 19.5 8.6

 1 ...................................................... 21.6 22.7 22.3 20.8 20.8 20.7 22.5 22.6 20.7 20.4 5.0

 2 ...................................................... 27.4 29.3 29.2 24.9 27.4 28.2 30.6 28.4 26.6 22.5 3.6

 3 ...................................................... 17.3 17.7 19.4 16.4 16.0 23.1 17.7 16.8 13.7 17.9 5.0

 4 ...................................................... 9.5 9.5 9.2 9.4 10.2 9.5 9.6 9.3 9.6 9.5 6.8

 5 or More ........................................ 10.4 10.3 10.5 11.0 9.3 8.6 10.2 11.4 10.5 10.2 8.2

 More than 12 Hours per Day

 None ............................................... 68.7 71.8 69.2 62.5 75.3 74.8 69.8 66.2 70.6 65.8 2.4

 1 ...................................................... 17.2 16.2 15.7 20.3 14.7 13.5 16.1 19.4 16.1 18.5 7.4

 2 ...................................................... 7.9 7.0 8.8 9.5 5.1 6.6 8.1 8.3 6.8 8.7 9.5

 3 ...................................................... 3.5 2.8 3.5 4.4 2.5 2.9 3.2 3.4 3.3 4.2 13.4

 4 ...................................................... 1.5 1.3 1.5 1.7 1.5 1.6 1.4 1.7 1.7 1.3 22.8

 5 or More ........................................ 1.2 0.9 1.2 1.6 1.0 Q 1.3 0.9 1.5 1.5 25.0

 Incandescent Lights Used

 1 to 4 Hours per Day

 None ............................................... 15.3 16.0 12.2 16.1 16.8 13.0 13.8 12.8 18.6 17.8 7.7

 1 ...................................................... 25.2 24.0 24.7 26.8 24.4 27.1 24.9 24.3 25.0 25.9 5.4

 2 ...................................................... 26.2 26.3 25.3 26.0 27.5 26.0 26.3 25.5 25.8 27.1 4.7

 3 ...................................................... 15.9 16.3 17.5 15.2 14.8 17.1 16.7 16.9 14.4 14.5 6.6

 4 ...................................................... 7.8 7.5 7.5 7.8 8.3 7.8 6.5 9.2 9.0 6.8 9.5

 5 or More ........................................ 9.7 10.0 12.9 8.1 8.2 9.0 11.7 11.3 7.1 8.0 10.4

 4 to 12 Hours per Day

 None ............................................... 18.0 15.3 13.3 20.9 21.2 15.7 13.2 15.5 23.1 23.2 7.0

 1 ...................................................... 25.4 26.4 25.6 25.2 24.6 25.3 25.6 25.7 24.2 25.8 4.9

 2 ...................................................... 26.7 28.0 28.1 25.7 25.5 27.2 29.0 27.4 24.9 24.4 3.8

 3 ...................................................... 14.4 15.1 17.8 12.4 13.4 18.6 16.0 15.3 12.6 11.3 6.2

 4 ...................................................... 7.7 8.0 7.0 7.7 8.1 6.7 7.9 7.5 7.4 8.2 8.9

 5 or More ........................................ 7.8 7.3 8.2 8.1 7.4 6.5 8.1 8.5 7.8 7.1 9.8

 More than 12 Hours per Day

 None ............................................... 72.9 75.0 73.7 67.5 78.7 79.4 74.1 69.2 74.5 71.2 2.1

 1 ...................................................... 16.3 16.3 13.8 20.0 13.0 11.6 14.7 19.7 15.1 17.5 8.2

 2 ...................................................... 6.6 5.1 8.4 7.2 4.7 5.3 7.3 6.6 6.2 6.4 9.4

 3 ...................................................... 2.5 2.4 2.0 3.2 1.9 1.7 2.2 2.8 2.0 3.1 16.5

 4 ...................................................... 1.0 Q 1.1 1.0 1.1 Q 0.8 0.9 1.3 0.9 24.8

 5 or More ........................................ 0.8 Q 0.9 1.0 Q Q 0.9 0.7 0.9 0.8 26.5

See footnotes at end of table.

Energy Information Administration/Housing Characteristrics 1993 121
Table 3.20a. Light Usage by Census Region and Climate Zone, 

 Million U.S. Households, 1993 (Continued)

Light Usage

RSE Column Factor:

Total

Census Region Climate Zone

RSE

Row

Factors

Northeast Midwest South West

Fewer than

2,000 CDD and --

More

than

2,000

CDD

and

Fewer

than

4,000

HDD

More

than

7,000

HDD

5,500

to

7,000

HDD

4,000

to

5,499

HDD

Fewer

than

4,000

HDD

0.4 0.8 0.8 0.6 0.8 2.4 1.4 1.3 1.4 1.1

 Fluorescent Lights Used

 1 to 4 Hours per Day

 None ............................................... 75.5 15.4 18.2 26.2 15.8 6.8 20.9 18.0 14.0 15.9 4.1

 1 ...................................................... 16.1 3.2 3.8 5.5 3.5 1.4 4.2 3.6 2.9 4.0 8.4

 2 ...................................................... 3.8 0.7 0.9 1.4 0.8 0.4 1.0 0.7 0.6 1.0 12.9

 3 or More ........................................ 1.2 0.2 0.3 0.4 0.2 0.1 0.4 0.3 0.2 0.3 24.5

 4 to 12 Hours per Day

 None ............................................... 75.1 14.7 18.7 25.7 15.9 6.5 21.3 17.8 13.8 15.8 4.1

 1 ...................................................... 15.9 3.7 3.1 5.6 3.5 1.6 3.9 3.5 3.1 3.8 8.3

 2 ...................................................... 4.3 0.8 1.1 1.7 0.7 0.5 1.0 0.8 0.7 1.2 12.8

 3 or More ........................................ 1.4 0.3 0.4 0.5 0.2 0.1 0.3 0.4 0.2 0.4 22.6

 More than 12 Hours per Day

 None ............................................... 88.2 18.0 21.3 29.7 19.2 8.1 24.2 20.8 16.3 18.9 3.7

 1 ...................................................... 6.7 1.2 1.6 3.0 0.9 0.5 1.9 1.3 1.2 1.9 14.6

 2 ...................................................... 1.1 0.2 0.3 0.5 Q Q 0.3 0.2 0.2 0.3 25.8

 3 or More ........................................ 0.6 Q Q 0.3 Q Q Q Q 0.1 0.2 32.4

 Compact Fluorescent Light

 Bulbs Used

 Yes ................................................... 8.6 2.1 2.2 2.3 2.0 1.1 2.5 1.8 1.5 1.6 10.2

 No ..................................................... 88.1 17.4 21.1 31.2 18.3 7.6 24.0 20.6 16.2 19.6 4.5

 Halogen Light Bulbs Used

 Yes ................................................... 11.2 2.6 2.3 3.5 2.8 0.9 3.0 2.6 2.1 2.6 8.8

 No ..................................................... 85.4 16.9 21.0 30.0 17.6 7.8 23.4 19.8 15.7 18.6 3.9

Outdoor Lights

 Yes (more than one

 may apply) .......................................... 63.5 10.8 15.5 22.9 14.3 6.5 16.6 13.1 12.1 15.2 5.9

 Evening Only .................................... 25.9 5.4 6.3 8.8 5.5 2.6 7.1 5.6 4.9 5.8 8.3

 All Night ............................................ 16.6 1.6 3.9 6.9 4.2 0.7 4.5 3.5 3.0 4.9 8.7

 Automatic Control ............................. 18.2 3.0 4.9 6.6 3.7 1.7 5.4 3.9 2.9 4.3 8.6

 High Intensity .................................... 3.2 0.6 0.8 1.4 0.5 0.2 0.7 0.7 0.6 0.9 24.2

 All Wattage Less than 150 ................ 31.5 5.6 7.4 10.8 7.7 4.0 7.2 6.6 6.6 7.0 9.8

 Gas Light1 ......................................... 0.5 Q Q 0.3 Q Q Q Q Q 0.2 37.3

 No ....................................................... 33.1 8.7 7.8 10.6 6.0 2.2 9.9 9.3 5.7 6.0 8.5

1 Gas includes LPG and natural gas.

Q = Data withheld either because the Relative Standard Error (RSE) was greater than 50 percent or fewer than 10 households were sampled.

Notes: • To obtain the RSE percentage for any table cell, multiply the corresponding column and row factors. • Because of rounding, data may not sum to totals. 

• See "Glossary" for definition of terms used in this report.

Source: Energy Information Administration, Office of Energy Markets and End Use, Forms EIA-457 A, B, C of the 1993 Residential Energy Consumption Survey. 

(For specific titles of forms, see Appendix D.)

122 Energy Information Administration/Housing Characteristrics 1993
Table 3.20b. Light Usage by Census Region and Climate Zone, 

 Percent of U.S. Households, 1993 (Continued)

Light Usage

RSE Column Factor:

Total

Census Region Climate Zone

RSE

Row

Factors

Northeast Midwest South West

Fewer than

2,000 CDD and --

More

than

2,000

CDD

and

Fewer

than

4,000

HDD

More

than

7,000

HDD

5,500

to

7,000

HDD

4,000

to

5,499

HDD

Fewer

than

4,000

HDD

0.5 1.1 1.1 0.8 1.0 1.4 1.1 1.1 1.1 1.1

 Fluorescent Lights Used

 1 to 4 Hours per Day

 None ............................................... 78.2 78.8 78.1 78.1 77.7 78.2 78.8 80.0 78.9 74.9 1.6

 1 ...................................................... 16.6 16.5 16.5 16.5 17.2 15.8 15.8 15.8 16.5 18.9 6.4

 2 ...................................................... 3.9 3.4 4.0 4.1 4.1 4.7 3.9 3.1 3.4 4.9 12.0

 3 or More ........................................ 1.3 1.3 1.4 1.3 1.0 1.4 1.5 1.1 1.1 1.3 24.1

 4 to 12 Hours per Day

 None ............................................... 77.7 75.7 80.4 76.7 78.0 74.2 80.3 79.1 77.7 74.3 1.7

 1 ...................................................... 16.4 18.8 13.4 16.7 17.1 18.2 14.7 15.6 17.3 18.1 6.9

 2 ...................................................... 4.4 4.0 4.6 5.0 3.7 6.2 3.7 3.5 4.0 5.9 11.2

 3 or More ........................................ 1.5 1.5 1.5 1.6 1.2 1.3 1.3 1.8 1.1 1.7 21.8

 More than 12 Hours per Day

 None ............................................... 91.3 92.4 91.5 88.6 94.3 92.6 91.4 92.6 91.5 89.1 1.1

 1 ...................................................... 6.9 6.0 6.7 9.0 4.6 5.5 7.0 5.9 6.7 8.8 12.7

 2 ...................................................... 1.1 1.2 1.2 1.5 Q Q 1.0 1.1 1.0 1.3 24.5

 3 or More ........................................ 0.6 Q Q 0.9 Q Q Q Q 0.8 0.8 31.3

 Compact Fluorescent Light

 Bulbs Used

 Yes ................................................... 8.9 10.5 9.2 7.0 9.9 13.0 9.4 8.1 8.7 7.4 9.5

 No ..................................................... 91.1 89.5 90.8 93.0 90.1 87.0 90.6 91.9 91.3 92.6 1.2

 Halogen Light Bulbs Used

 Yes ................................................... 11.6 13.3 9.9 10.6 13.8 10.7 11.5 11.6 11.5 12.4 8.1

 No ..................................................... 88.4 86.7 90.1 89.4 86.2 89.3 88.5 88.4 88.5 87.6 1.1

Outdoor Lights

 Yes (more than one

 may apply) .......................................... 65.8 55.3 66.5 68.4 70.5 74.6 62.6 58.6 68.2 71.6 3.4

 Evening Only .................................... 26.9 27.6 26.9 26.2 27.2 29.7 26.8 24.8 27.6 27.2 6.0

 All Night ............................................ 17.2 8.1 16.9 20.6 20.5 8.6 17.0 15.5 16.6 23.1 7.2

 Automatic Control ............................. 18.8 15.4 21.0 19.7 18.3 19.3 20.5 17.5 16.0 20.4 6.8

 High Intensity .................................... 3.3 2.9 3.2 4.1 2.3 2.6 2.7 3.2 3.6 4.1 22.9

 All Wattage Less than 150 ................ 32.6 28.7 31.8 32.2 37.8 46.3 27.2 29.3 37.3 33.1 8.1

 Gas Light1 ......................................... 0.6 Q Q 0.9 Q Q Q Q Q 0.9 31.9

 No ....................................................... 34.2 44.7 33.5 31.6 29.5 25.4 37.4 41.4 31.8 28.4 6.7

1 Gas includes LPG and natural gas.

Q = Data withheld either because the Relative Standard Error (RSE) was greater than 50 percent or fewer than 10 households were sampled.

Notes: • To obtain the RSE percentage for any table cell, multiply the corresponding column and row factors. • Because of rounding, data may not sum to totals. 

• See "Glossary" for definition of terms used in this report.

Source: Energy Information Administration, Office of Energy Markets and End Use, Forms EIA-457 A, B, C of the 1993 Residential Energy Consumption Survey. 

(For specific titles of forms, see Appendix D.)

Energy Information Administration/Housing Characteristrics 1993 123
Table 3.21a. Light Usage by Type and Ownership of Housing Unit,

 Million U.S. Households, 1993

Light Usage

RSE Column Factor:

Total

Type and Ownership of Housing Unit

RSE

Row

Factors

Single-Family 

Multifamily

Two to Four Units Five or More Units Mobile Home

Total Own Rent Total Own Rent Total Own Rent Total Own Rent

0.3 0.3 0.4 0.8 1.2 2.1 1.3 0.9 3.0 0.9 1.3 1.5 2.3

Total .................................................... 96.6 66.8 55.8 11.0 8.0 1.5 6.5 16.2 1.6 14.7 5.6 4.4 1.2 5.8

Indoor Electric Lights

 Total Number Lights

 1 to 4 Hours

 None .............................................. 9.6 6.4 5.4 0.9 0.8 Q 0.6 1.8 0.2 1.6 0.7 0.5 0.2 15.6

 1 .................................................... 22.1 13.2 10.4 2.8 2.4 0.4 2.0 4.9 0.4 4.5 1.6 1.2 0.4 9.2

 2 .................................................... 27.4 18.4 15.0 3.3 2.3 0.4 1.9 5.1 0.5 4.6 1.7 1.3 0.4 9.3

 3 .................................................... 16.8 11.9 10.1 1.8 1.3 0.3 1.0 2.6 0.2 2.4 1.0 0.8 0.2 12.1

 4 .................................................... 9.2 7.4 6.4 1.0 0.6 0.1 0.4 0.9 Q 0.8 0.4 0.3 0.1 15.9

 5 or More ....................................... 11.5 9.6 8.4 1.2 0.6 0.2 0.5 1.0 Q 0.9 0.2 0.2 Q 18.4

 4 to 12 Hours

 None .............................................. 13.4 8.2 6.3 1.9 1.4 0.2 1.2 2.9 0.2 2.7 0.9 0.7 0.3 12.5

 1 .................................................... 20.8 12.1 9.5 2.6 2.4 0.4 1.9 4.9 0.4 4.6 1.4 1.1 0.3 9.4

 2 .................................................... 26.4 18.1 15.1 3.0 2.0 0.3 1.6 4.8 0.5 4.3 1.6 1.2 0.4 8.6

 3 .................................................... 16.7 12.4 10.6 1.8 1.5 0.3 1.2 1.9 0.2 1.7 0.9 0.8 0.2 10.8

 4 .................................................... 9.2 7.4 6.5 0.9 0.5 0.2 0.3 0.9 Q 0.8 0.3 0.3 Q 14.4

 5 or More ....................................... 10.0 8.6 7.7 0.9 0.3 Q 0.2 0.8 Q 0.6 0.4 0.3 Q 18.1

 More than 12 Hours per Day

 None .............................................. 66.4 44.6 36.9 7.7 5.7 1.1 4.6 12.3 1.2 11.1 3.8 2.9 0.8 6.6

 1 .................................................... 16.6 11.7 9.9 1.7 1.5 0.2 1.2 2.5 0.2 2.3 1.0 0.8 0.2 12.0

 2 .................................................... 7.6 5.8 4.8 1.0 0.5 Q 0.4 0.9 Q 0.8 0.5 0.4 Q 16.0

 3 .................................................... 3.3 2.7 2.4 0.3 0.2 Q 0.1 0.3 Q 0.2 0.2 0.2 Q 24.9

 4 .................................................... 1.5 1.2 1.0 0.2 Q Q Q 0.2 Q 0.2 Q Q Q 35.6

 5 or More ....................................... 1.2 1.0 0.8 0.2 Q Q Q Q Q Q Q Q Q 43.7

 Incandescent Lights Used

 1 to 4 Hours per Day

 None .............................................. 14.8 10.1 8.5 1.6 1.1 0.2 0.9 2.6 0.4 2.2 0.9 0.7 0.2 12.6

 1 .................................................... 24.4 14.9 12.1 2.8 2.5 0.5 2.0 5.4 0.3 5.0 1.6 1.3 0.3 9.1

 2 .................................................... 25.3 16.9 13.8 3.2 2.3 0.4 1.9 4.4 0.4 4.0 1.7 1.3 0.4 9.3

 3 .................................................... 15.3 11.2 9.7 1.6 1.1 0.2 0.9 2.2 0.2 2.0 0.8 0.7 0.2 12.7

 4 .................................................... 7.5 5.9 4.9 1.0 0.5 Q 0.4 0.7 Q 0.6 0.3 0.3 Q 17.8

 5 or More ....................................... 9.4 7.7 6.8 1.0 0.5 Q 0.4 0.9 Q 0.8 0.2 0.2 Q 19.8

 4 to 12 Hours per Day

 None .............................................. 17.4 10.7 8.4 2.3 1.9 0.3 1.7 3.6 0.3 3.3 1.1 0.9 0.3 11.3

 1 .................................................... 24.5 15.2 12.4 2.7 2.4 0.4 2.0 5.5 0.4 5.1 1.5 1.1 0.4 9.4

 2 .................................................... 25.8 18.2 15.0 3.2 1.8 0.3 1.4 4.2 0.5 3.7 1.6 1.2 0.3 9.1

 3 .................................................... 13.9 10.4 9.1 1.3 1.3 0.3 1.0 1.5 Q 1.4 0.8 0.6 0.1 11.9

 4 .................................................... 7.4 5.8 5.0 0.7 0.5 Q 0.3 0.8 Q 0.7 0.3 0.3 Q 17.2

 5 or More ....................................... 7.5 6.5 5.8 0.7 0.2 Q 0.2 0.5 Q 0.5 0.3 0.3 Q 21.3

 More than 12 Hours per Day

 None .............................................. 70.4 47.8 39.8 8.0 5.9 1.1 4.8 12.8 1.3 11.5 3.9 3.0 0.9 6.4

 1 .................................................... 15.7 11.0 9.3 1.7 1.3 0.2 1.1 2.4 0.2 2.2 1.0 0.8 0.2 12.8

 2 .................................................... 6.3 4.7 3.9 0.8 0.5 Q 0.4 0.7 Q 0.6 0.4 0.3 Q 16.1

 3 .................................................... 2.4 1.9 1.7 0.2 0.2 Q Q 0.2 Q 0.2 0.2 0.2 Q 29.4

 4 .................................................... 1.0 0.7 0.6 Q Q Q Q 0.1 Q Q Q Q Q 42.0

 5 or More ....................................... 0.8 0.6 0.5 0.2 Q Q Q Q Q Q Q Q Q 48.8

See footnotes at end of table.

124 Energy Information Administration/Housing Characteristrics 1993
Table 3.21b. Light Usage by Type and Ownership of Housing Unit,

 Percent of U.S. Households, 1993

Light Usage

RSE Column Factor:

Total

Type and Ownership of Housing Unit

RSE

Row

Factors

Single-Family 

Multifamily

Two to Four Units Five or More Units Mobile Home

Total Own Rent Total Own Rent Total Own Rent Total Own Rent

0.3 0.4 0.4 0.9 1.1 2.2 1.3 0.8 2.6 0.9 1.2 1.4 2.3

Total .................................................... 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 0.0

Indoor Electric Lights

 Total Number Lights

 1 to 4 Hours

 None .............................................. 10.0 9.5 9.7 8.4 9.6 Q 9.7 11.2 14.8 10.9 12.2 11.7 14.0 14.5

 1 .................................................... 22.9 19.8 18.7 25.2 30.0 27.7 30.6 30.0 23.5 30.7 29.0 28.3 31.9 7.4

 2 .................................................... 28.4 27.5 26.9 30.3 29.3 27.2 29.8 31.3 31.5 31.3 29.6 29.3 31.0 7.0

 3 .................................................... 17.4 17.8 18.2 16.0 16.3 17.3 16.1 15.9 13.5 16.1 17.9 18.8 14.6 10.7

 4 .................................................... 9.5 11.0 11.5 8.8 7.2 8.4 6.9 5.3 Q 5.2 7.0 6.6 8.2 15.1

 5 or More ....................................... 11.9 14.4 15.0 11.3 7.6 10.1 7.0 6.3 Q 5.8 4.3 5.3 Q 17.6

 4 to 12 Hours

 None .............................................. 13.9 12.2 11.2 17.3 17.3 11.4 18.6 18.1 14.6 18.5 16.3 14.9 21.6 11.0

 1 .................................................... 21.6 18.1 17.1 23.3 29.4 28.5 29.6 30.5 25.1 31.0 25.6 24.8 28.5 7.4

 2 .................................................... 27.4 27.1 27.0 27.5 24.5 21.0 25.3 29.2 31.5 29.0 28.7 28.2 30.7 6.8

 3 .................................................... 17.3 18.5 19.0 15.9 18.8 21.8 18.1 11.9 12.1 11.9 16.4 17.1 13.5 9.0

 4 .................................................... 9.5 11.1 11.7 8.1 6.5 13.0 5.1 5.6 Q 5.3 6.0 7.0 Q 14.0

 5 or More ....................................... 10.4 12.9 13.9 7.8 3.5 Q 3.3 4.6 Q 4.3 7.0 7.9 Q 16.7

 More than 12 Hours per Day

 None .............................................. 68.7 66.7 66.2 69.5 71.1 71.4 71.0 75.8 76.5 75.7 68.0 66.9 72.2 3.3

 1 .................................................... 17.2 17.4 17.8 15.7 18.3 16.6 18.7 15.2 13.0 15.4 18.4 18.8 17.0 10.6

 2 .................................................... 7.9 8.6 8.6 9.0 6.4 Q 6.8 5.4 Q 5.2 9.0 9.1 Q 15.1

 3 .................................................... 3.5 4.0 4.3 2.5 2.8 Q 2.3 1.6 Q 1.6 3.1 3.5 Q 24.6

 4 .................................................... 1.5 1.8 1.8 1.4 Q Q Q 1.3 Q 1.3 Q Q Q 34.2

 5 or More ....................................... 1.2 1.5 1.4 1.9 Q Q Q Q Q Q Q Q Q 39.4

 Incandescent Lights Used

 1 to 4 Hours per Day

 None .............................................. 15.3 15.1 15.3 14.4 14.0 12.8 14.3 16.3 27.3 15.1 15.8 15.1 18.5 11.1

 1 .................................................... 25.2 22.2 21.7 25.1 31.1 31.0 31.1 33.1 22.5 34.2 29.1 28.9 29.5 7.4

 2 .................................................... 26.2 25.4 24.7 28.7 28.2 25.6 28.8 27.3 25.2 27.5 30.2 29.3 33.4 6.9

 3 .................................................... 15.9 16.8 17.3 14.1 13.7 14.9 13.4 13.4 12.7 13.5 15.1 15.5 13.5 11.3

 4 .................................................... 7.8 8.9 8.9 9.1 6.6 Q 5.9 4.4 Q 4.4 5.9 6.2 Q 16.9

 5 or More ....................................... 9.7 11.6 12.2 8.6 6.4 Q 6.5 5.5 Q 5.2 4.0 4.9 Q 19.0

 4 to 12 Hours per Day

 None .............................................. 18.0 16.1 15.1 21.0 24.1 17.6 25.6 22.0 20.5 22.1 20.3 19.6 22.8 9.5

 1 .................................................... 25.4 22.7 22.3 24.8 29.7 26.9 30.3 34.1 27.6 34.8 26.2 24.5 32.5 7.4

 2 .................................................... 26.7 27.3 26.9 29.2 22.3 23.4 22.0 26.0 32.8 25.3 28.4 28.1 29.3 7.3

 3 .................................................... 14.4 15.5 16.3 11.9 16.0 21.2 14.8 9.4 Q 9.7 13.8 14.6 10.9 10.3

 4 .................................................... 7.7 8.7 9.1 6.7 5.7 Q 4.9 5.2 Q 4.8 5.6 6.7 Q 16.7

 5 or More ....................................... 7.8 9.7 10.4 6.3 2.3 Q 2.4 3.4 Q 3.3 5.8 6.5 Q 19.9

 More than 12 Hours per Day

 None .............................................. 72.9 71.5 71.4 72.3 74.1 75.5 73.8 78.7 80.8 78.4 70.3 69.1 74.5 3.0

 1 .................................................... 16.3 16.5 16.7 15.5 16.6 14.6 17.1 14.7 9.8 15.2 18.0 18.9 14.6 11.3

 2 .................................................... 6.6 7.1 7.0 7.5 6.1 Q 6.2 4.3 Q 3.9 7.5 7.2 Q 15.4

 3 .................................................... 2.5 2.8 3.0 1.9 2.1 Q Q 1.1 Q 1.1 3.1 3.4 Q 29.2

 4 .................................................... 1.0 1.1 1.1 Q Q Q Q 0.8 Q Q Q Q Q 39.0

 5 or More ....................................... 0.8 0.9 0.8 1.6 Q Q Q Q Q Q Q Q Q 44.1

See footnotes at end of table.

Energy Information Administration/Housing Characteristrics 1993 125
Table 3.21a. Light Usage by Type and Ownership of Housing Unit,

 Million U.S. Households, 1993 (Continued)

Light Usage

RSE Column Factor:

Total

Type and Ownership of Housing Unit

RSE

Row

Factors

Single-Family 

Multifamily

Two to Four Units Five or More Units Mobile Home

Total Own Rent Total Own Rent Total Own Rent Total Own Rent

0.3 0.3 0.4 0.8 1.2 2.1 1.3 0.9 3.0 0.9 1.3 1.5 2.3

 Fluorescent Lights Used

 1 to 4 Hours per Day

 None .............................................. 75.5 50.7 41.8 8.9 6.7 1.1 5.6 13.2 1.1 12.1 4.9 3.9 1.0 6.5

 1 .................................................... 16.1 11.9 10.2 1.7 1.0 0.3 0.7 2.6 0.3 2.2 0.6 0.4 0.1 12.3

 2 .................................................... 3.8 3.1 2.7 0.4 0.2 Q 0.2 0.4 Q 0.3 Q Q Q 24.9

 3 or More ....................................... 1.2 1.1 1.1 Q Q Q Q Q Q Q Q Q Q 40.8

 4 to 12 Hours per Day

 None .............................................. 75.1 50.1 40.9 9.2 6.6 1.2 5.4 13.5 1.2 12.3 4.9 3.9 1.1 6.1

 1 .................................................... 15.9 11.9 10.5 1.4 1.1 0.2 0.9 2.3 0.3 2.0 0.5 0.4 Q 12.3

 2 .................................................... 4.3 3.6 3.2 0.4 0.2 Q Q 0.3 Q 0.3 0.2 0.1 Q 23.6

 3 or More ....................................... 1.4 1.2 1.1 Q Q Q Q Q Q Q Q Q Q 37.7

 More than 12 Hours per Day

 None .............................................. 88.2 60.1 49.8 10.3 7.6 1.4 6.2 15.2 1.4 13.8 5.3 4.2 1.1 6.0

 1 .................................................... 6.7 5.2 4.6 0.6 0.4 Q 0.3 0.9 Q 0.8 0.2 0.2 Q 20.9

 2 .................................................... 1.1 0.9 0.8 Q Q Q Q Q Q Q Q Q Q 44.5

 3 or More ....................................... 0.6 0.5 0.5 Q Q Q Q Q Q Q Q Q Q 57.0

 Compact Fluorescent Light

 Bulbs Used

 Yes .................................................. 8.6 7.1 6.4 0.7 0.4 Q 0.2 0.9 0.2 0.7 0.2 0.2 Q 16.3

 No .................................................... 88.1 59.7 49.4 10.3 7.6 1.4 6.3 15.3 1.4 13.9 5.3 4.2 1.2 5.9

 Halogen Light Bulbs Used

 Yes .................................................. 11.2 8.6 7.6 1.0 0.7 0.3 0.4 1.6 0.2 1.4 0.3 0.2 Q 14.7

 No .................................................... 85.4 58.2 48.2 10.0 7.3 1.2 6.1 14.6 1.4 13.3 5.3 4.2 1.1 6.0

Outdoor Lights

 Yes (more than one

 may apply) ......................................... 63.5 50.5 42.9 7.6 4.7 1.2 3.6 4.5 0.3 4.1 3.8 3.1 0.7 7.3

 Evening Only ................................... 25.9 21.5 18.4 3.2 1.7 0.5 1.1 1.1 Q 1.0 1.6 1.3 0.3 10.6

 All Night ........................................... 16.6 13.1 10.9 2.2 1.1 0.2 0.9 1.6 Q 1.5 0.8 0.7 0.1 13.2

 Automatic Control ............................ 18.2 15.6 14.5 1.1 0.9 0.4 0.5 0.8 Q 0.7 1.0 0.9 Q 13.1

 High Intensity .................................. 3.2 2.8 2.6 0.2 Q Q Q Q Q Q 0.2 0.2 Q 32.8

 All Wattage Less than 150 .............. 31.5 23.9 19.7 4.2 3.1 0.5 2.6 2.6 0.2 2.3 1.9 1.4 0.5 11.0

 Gas Light1 ....................................... 0.5 0.5 0.5 Q Q Q Q Q Q Q Q Q Q 58.3

 No ...................................................... 33.1 16.3 12.9 3.4 3.3 0.3 3.0 11.8 1.2 10.6 1.7 1.3 0.4 10.0

1 Gas includes LPG and natural gas.

Q = Data withheld either because the Relative Standard Error (RSE) was greater than 50 percent or fewer than 10 households were sampled.

Notes: • To obtain the RSE percentage for any table cell, multiply the corresponding column and row factors. • Because of rounding, data may not sum to totals. 

• See "Glossary" for definition of terms used in this report.

Source: Energy Information Administration, Office of Energy Markets and End Use, Forms EIA-457 A, B, C of the 1993 Residential Energy Consumption Survey. 

(For specific titles of forms, see Appendix D.)

126 Energy Information Administration/Housing Characteristrics 1993
Table 3.21b. Light Usage by Type and Ownership of Housing Unit,

 Percent of U.S. Households, 1993 (Continued)

Light Usage

RSE Column Factor:

Total

Type and Ownership of Housing Unit

RSE

Row

Factors

Single-Family 

Multifamily

Two to Four Units Five or More Units Mobile Home

Total Own Rent Total Own Rent Total Own Rent Total Own Rent

0.3 0.4 0.4 0.9 1.1 2.2 1.3 0.8 2.6 0.9 1.2 1.4 2.3

 Fluorescent Lights Used

 1 to 4 Hours per Day

 None .............................................. 78.2 75.9 74.9 80.7 84.0 76.7 85.7 81.5 70.5 82.6 87.9 88.3 86.4 2.3

 1 .................................................... 16.6 17.8 18.2 15.6 12.6 21.7 10.5 15.8 22.2 15.2 10.6 10.1 12.4 11.8

 2 .................................................... 3.9 4.6 4.9 3.4 3.1 Q 3.4 2.3 Q 2.1 Q Q Q 23.9

 3 or More ....................................... 1.3 1.7 2.0 Q Q Q Q Q Q Q Q Q Q 36.4

 4 to 12 Hours per Day

 None .............................................. 77.7 75.0 73.4 83.1 82.1 80.6 82.4 83.2 75.2 84.0 88.1 87.6 89.9 2.1

 1 .................................................... 16.4 17.9 18.9 12.7 14.3 13.5 14.5 14.4 19.5 13.8 8.4 8.6 Q 11.3

 2 .................................................... 4.4 5.3 5.7 3.4 2.5 Q Q 2.1 Q 1.9 2.8 3.1 Q 23.3

 3 or More ....................................... 1.5 1.8 2.0 Q Q Q Q Q Q Q Q Q Q 32.8

 More than 12 Hours per Day

 None .............................................. 91.3 90.0 89.3 93.6 95.0 92.8 95.5 93.5 92.6 93.6 95.4 94.7 97.7 1.2

 1 .................................................... 6.9 7.8 8.3 5.3 4.6 Q 4.5 5.4 Q 5.4 4.0 4.4 Q 20.3

 2 .................................................... 1.1 1.4 1.5 Q Q Q Q Q Q Q Q Q Q 39.3

 3 or More ....................................... 0.6 0.8 0.9 Q Q Q Q Q Q Q Q Q Q 50.9

 Compact Fluorescent Light

 Bulbs Used

 Yes .................................................. 8.9 10.6 11.4 6.6 4.5 Q 3.5 5.5 10.1 5.1 4.0 5.0 Q 15.4

 No .................................................... 91.1 89.4 88.6 93.4 95.5 91.1 96.5 94.5 89.9 94.9 96.0 95.0 99.5 1.0

 Halogen Light Bulbs Used

 Yes .................................................. 11.6 12.9 13.6 9.4 9.3 20.1 6.9 9.9 10.7 9.8 5.3 5.5 Q 13.8

 No .................................................... 88.4 87.1 86.4 90.6 90.7 79.9 93.1 90.1 89.3 90.2 94.7 94.5 95.2 1.4

Outdoor Lights

 Yes (more than one

 may apply) ......................................... 65.8 75.6 76.9 69.2 58.9 77.4 54.7 27.6 22.2 28.2 68.7 70.2 63.0 4.9

 Evening Only ................................... 26.9 32.3 32.9 28.8 20.9 35.4 17.6 6.8 Q 6.8 29.1 29.1 29.4 8.9

 All Night ........................................... 17.2 19.6 19.6 19.7 13.7 15.1 13.4 9.6 Q 10.1 15.1 16.3 10.7 12.0

 Automatic Control ............................ 18.8 23.3 25.9 10.1 11.1 24.6 8.0 4.7 Q 4.9 17.5 20.5 Q 12.3

 High Intensity .................................. 3.3 4.1 4.6 1.5 Q Q Q Q Q Q 4.2 5.3 Q 31.8

 All Wattage Less than 150 .............. 32.6 35.8 35.3 38.2 38.7 36.2 39.2 15.7 15.0 15.8 34.5 32.6 41.7 9.5

 Gas Light1 ....................................... 0.6 0.8 0.9 Q Q Q Q Q Q Q Q Q Q 51.2

 No ...................................................... 34.2 24.4 23.1 30.8 41.1 22.6 45.3 72.4 77.8 71.8 31.3 29.8 37.0 6.9

1 Gas includes LPG and natural gas.

Q = Data withheld either because the Relative Standard Error (RSE) was greater than 50 percent or fewer than 10 households were sampled.

Notes: • To obtain the RSE percentage for any table cell, multiply the corresponding column and row factors. • Because of rounding, data may not sum to totals. 

• See "Glossary" for definition of terms used in this report.

Source: Energy Information Administration, Office of Energy Markets and End Use, Forms EIA-457 A, B, C of the 1993 Residential Energy Consumption Survey. 

(For specific titles of forms, see Appendix D.)

Energy Information Administration/Housing Characteristrics 1993 127
Table 3.22. Light Usage by Type of Bulb,

 U.S. Households and Lights, 1993

Housing Unit and Household

Characteristics

RSE Column Factor:

Total

Households

(millions)

Lights Used One or More Hours Per Day

RSE

Row

Factors

Total

Lights

(millions)

Average

per

Household

Incandescent Lights

(millions)

Fluorescent Lights

(millions)

1 to 4

Hours

4 to 12

Hours

More

than

12 Hours

1 to 4

Hours

4 to 12

Hours

More

than

12 Hours

0.7 0.7 0.4 0.8 0.8 1.4 1.5 1.5 2.4

Total .................................................... 96.6 522.6 5.4 212.4 196.6 44.1 28.2 29.9 11.4 2.1

Census Region and Division

 Northeast ........................................... 19.5 107.5 5.5 44.1 41.7 7.9 5.6 6.3 1.9 4.7

 New England ................................... 5.1 28.8 5.7 11.0 11.7 2.5 1.3 1.7 0.5 9.5

 Middle Atlantic ................................. 14.4 78.7 5.5 33.1 30.0 5.4 4.3 4.5 1.4 5.4

 Midwest ............................................. 23.3 132.3 5.7 55.3 49.8 10.7 6.8 6.8 2.8 4.9

 East North Central ........................... 16.4 95.5 5.8 40.2 35.0 7.7 5.5 5.0 2.1 5.9

 West North Central .......................... 6.9 36.8 5.3 15.1 14.9 3.0 1.3 1.8 0.7 7.4

 South ................................................. 33.5 180.0 5.4 70.1 65.9 18.0 10.0 10.9 5.1 3.3

 South Atlantic .................................. 17.4 92.1 5.3 34.6 34.2 8.7 5.6 6.2 2.7 4.5

 East South Central .......................... 6.0 33.2 5.5 13.3 12.4 3.2 1.5 1.8 0.9 5.8

 West South Central ......................... 10.1 54.7 5.4 22.1 19.3 6.0 2.9 2.9 1.5 6.8

 West .................................................. 20.4 102.7 5.0 42.8 39.2 7.4 5.8 5.9 1.6 4.3

 Mountain ......................................... 5.4 26.2 4.9 11.0 10.1 1.8 1.5 1.4 0.3 8.3

 Pacific .............................................. 15.0 76.6 5.1 31.8 29.0 5.6 4.3 4.5 1.3 4.9

Climate Zone

 Under 2,000 CDD and--

 Over 7,000 HDD .............................. 8.7 46.8 5.4 19.3 17.6 3.2 2.6 3.2 0.9 15.2

 5,500 to 7,000 HDD ........................ 26.5 148.4 5.6 60.9 57.6 11.8 7.7 7.1 3.2 9.0

 4,000 to 5,499 HDD ........................ 22.5 127.3 5.7 53.6 47.7 11.1 6.0 6.7 2.2 8.8

 Under 4,000 HDD ............................ 17.8 89.4 5.0 35.6 33.7 7.8 4.9 5.3 2.1 9.6

 2,000 CDD or More and --

 Under 4,000 HDD .............................. 21.2 110.7 5.2 42.9 40.0 10.2 7.0 7.6 3.1 7.5

Heated Floorspace Category

(square feet)

 Fewer than 600 ................................. 7.5 25.8 3.4 11.6 9.5 1.7 1.3 1.2 0.4 10.5

 600 to 999 ........................................ 21.8 90.5 4.1 39.1 33.6 8.3 4.1 3.9 1.5 4.9

 1,000 to 1,599 .................................. 27.8 141.4 5.1 57.9 52.4 12.5 7.5 7.6 3.4 4.5

 1,600 to 1,999 .................................. 12.4 71.4 5.8 28.1 26.9 6.2 3.8 4.8 1.6 6.0

 2,000 to 2,399 .................................. 9.6 62.4 6.5 24.8 23.4 4.9 3.8 4.1 1.4 6.9

 2,400 to 2,999 .................................. 8.2 54.8 6.7 20.5 21.2 5.4 3.1 3.4 1.2 7.2

 3,000 or More ................................... 9.3 76.3 8.2 30.3 29.5 5.2 4.6 5.0 1.9 8.2

Observed Location

of Household

 City ................................................... 44.7 226.3 5.1 93.1 84.2 18.6 13.3 12.9 4.3 3.4

 Town ................................................ 15.8 79.4 5.0 32.9 29.7 6.9 3.9 4.3 1.7 7.9

 Suburbs ............................................ 19.9 125.1 6.3 51.0 47.8 10.4 5.7 7.2 3.1 6.1

 Rural or Open Country ..................... 16.2 91.7 5.6 35.4 35.0 8.2 5.3 5.5 2.3 8.0

Ownership of Unit

 Owned ............................................... 63.2 373.4 5.9 147.6 141.9 30.6 21.4 23.1 8.8 2.7

 Rented ............................................... 33.4 149.1 4.5 64.7 54.7 13.5 6.9 6.8 2.6 4.3

See footnotes at end of table.

128 Energy Information Administration/Housing Characteristrics 1993
Table 3.22. Light Usage by Type of Bulb,

 U.S. Households and Lights, 1993 (Continued)

Housing Unit and Household

Characteristics

RSE Column Factor:

Total

Households

(millions)

Lights Used One or More Hours Per Day

RSE

Row

Factors

Total

Lights

(millions)

Average

per

Household

Incandescent Lights

(millions)

Fluorescent Lights

(millions)

1 to 4

Hours

4 to 12

Hours

More

than

12 Hours

1 to 4

Hours

4 to 12

Hours

More

than

12 Hours

0.7 0.7 0.4 0.8 0.8 1.4 1.5 1.5 2.4

Type and Ownership of Housing

Unit

 Single-Family Detached .................... 59.6 356.6 6.0 141.9 134.9 29.8 20.0 21.5 8.5 3.0

 Owned ............................................. 51.3 314.4 6.1 124.1 119.6 25.4 18.1 19.5 7.7 3.2

 Rented ............................................. 8.2 42.2 5.1 17.8 15.3 4.4 1.9 2.0 0.8 8.7

 Single-Family Attached ..................... 7.2 37.8 5.2 15.7 13.7 3.1 2.4 2.3 0.7 10.8

 Owned ............................................. 4.4 23.8 5.4 9.3 8.4 2.0 1.7 1.8 0.6 13.0

 Rented ............................................. 2.8 14.0 5.0 6.4 5.2 1.1 0.7 0.5 0.1 13.9

 Multifamily (2 to 4 units) .................... 8.0 35.1 4.4 15.4 12.6 3.2 1.6 1.8 0.5 9.6

 Owned ............................................. 1.5 7.3 4.9 3.0 2.7 0.6 0.4 0.4 Q 16.5

 Rented ............................................. 6.5 27.8 4.3 12.3 9.9 2.6 1.2 1.4 0.3 10.4

 Multifamily (5 or more units) .............. 16.2 68.0 4.2 29.2 25.2 5.3 3.5 3.3 1.5 7.4

 Owned ............................................. 1.6 7.3 4.7 2.9 2.7 0.5 0.6 0.6 Q 26.5

 Rented ............................................. 14.7 60.7 4.1 26.3 22.5 4.9 2.9 2.7 1.4 7.5

 Mobile Home ..................................... 5.6 25.0 4.5 10.2 10.2 2.6 0.8 0.9 0.3 11.3

 Owned ............................................. 4.4 20.6 4.7 8.3 8.5 2.2 0.6 0.7 0.3 12.6

 Rented ............................................. 1.2 4.4 3.8 1.9 1.7 0.5 0.2 0.2 Q 19.3

Year of Construction

 1939 or Before .................................. 20.4 104.4 5.1 42.7 38.3 8.7 5.8 6.4 2.4 6.3

 1940 to 1949 ..................................... 6.9 35.1 5.1 14.4 12.6 3.8 1.9 1.7 0.8 10.0

 1950 to 1959 ..................................... 13.1 72.0 5.5 28.6 27.4 6.4 3.7 3.9 1.9 6.9

 1960 to 1969 ..................................... 15.0 79.2 5.3 31.6 30.0 6.6 4.4 4.3 2.2 6.8

 1970 to 1979 ..................................... 18.1 99.2 5.5 39.9 38.6 8.0 5.3 5.5 1.9 6.0

 1980 to 1984 ..................................... 8.5 48.4 5.7 19.6 17.5 4.7 2.8 2.9 0.8 7.9

 1985 to 1987 ..................................... 5.5 30.3 5.5 12.8 11.5 2.0 1.6 2.0 0.4 10.9

 1988 to 1990 ..................................... 4.7 27.7 5.9 11.6 10.6 2.3 1.3 1.4 0.6 9.3

 1991 to 19931 ................................... 4.5 26.3 5.9 11.0 10.0 1.6 1.3 1.8 0.5 11.4

Total Number of Rooms

(Excluding Bathrooms)

 1 or 2 ................................................. 3.2 10.2 3.2 4.6 3.8 0.6 0.5 0.5 Q 18.1

 3 to 5 ................................................ 47.4 210.3 4.4 88.8 78.0 18.1 11.2 10.2 4.0 3.6

 6 to 8 ................................................ 40.2 250.4 6.2 99.4 94.6 21.2 13.6 15.9 5.7 3.6

 9 or More ........................................... 5.8 51.7 8.8 19.6 20.2 4.1 3.0 3.3 1.5 10.1

Bedrooms

 None or 1 .......................................... 12.9 46.5 3.6 21.0 17.1 3.3 2.3 2.0 0.8 8.2

 2 ........................................................ 30.0 135.2 4.5 55.5 50.3 11.7 7.8 7.4 2.6 4.7

 3 ........................................................ 38.5 222.5 5.8 89.9 84.3 18.8 11.2 13.6 4.6 3.4

 4 or More ........................................... 15.2 118.3 7.8 46.0 44.9 10.3 7.0 6.9 3.3 6.1

Other Rooms

(Excluding Bathrooms)

 None or 1 .......................................... 4.4 16.3 3.7 6.8 6.2 1.2 0.8 1.0 0.3 13.1

 2 ........................................................ 35.6 160.2 4.5 68.7 59.7 13.9 7.7 7.2 3.0 4.2

 3 ........................................................ 31.7 168.8 5.3 68.4 63.4 14.2 9.4 9.7 3.7 4.2

 4 ........................................................ 16.3 106.9 6.6 41.4 41.0 9.1 5.7 6.7 2.9 5.1

 5 or More ........................................... 8.7 70.4 8.1 27.1 26.2 5.7 4.5 5.2 1.6 8.0

See footnotes at end of table.

Energy Information Administration/Housing Characteristrics 1993 129
Table 3.22. Light Usage by Type of Bulb,

 U.S. Households and Lights, 1993 (Continued)

Housing Unit and Household

Characteristics

RSE Column Factor:

Total

Households

(millions)

Lights Used One or More Hours Per Day

RSE

Row

Factors

Total

Lights

(millions)

Average

per

Household

Incandescent Lights

(millions)

Fluorescent Lights

(millions)

1 to 4

Hours

4 to 12

Hours

More

than

12 Hours

1 to 4

Hours

4 to 12

Hours

More

than

12 Hours

0.7 0.7 0.4 0.8 0.8 1.4 1.5 1.5 2.4

Full Bathrooms

 None or 1 .......................................... 61.6 287.8 4.7 120.6 107.6 25.5 14.1 14.5 5.6 3.1

 2 ........................................................ 30.9 196.2 6.3 77.3 74.0 15.4 11.7 12.9 4.8 4.0

 3 or More ........................................... 4.1 38.6 9.4 14.5 15.0 3.2 2.4 2.5 1.0 11.5

Half Bathrooms

 None ................................................. 71.5 358.4 5.0 148.5 132.3 30.1 19.3 20.3 7.9 2.6

 1 ........................................................ 23.9 155.6 6.5 60.2 61.5 13.2 8.4 9.0 3.3 5.0

 2 or More ........................................... 1.2 8.6 7.1 3.7 2.7 0.8 0.6 0.5 0.2 18.9

Number of Stories

 Single-Family Homes ........................ 66.8 394.4 5.9 157.6 148.6 32.9 22.3 23.9 9.2 2.7

 1 Story ............................................. 40.6 218.1 5.4 86.3 80.7 19.4 12.8 13.5 5.4 3.7

 2 Stories .......................................... 22.4 146.8 6.6 59.4 56.2 11.1 8.2 8.7 3.2 5.2

 3 Stories .......................................... 1.6 14.3 8.8 5.5 5.9 1.3 0.7 0.8 0.2 20.6

 Split-Level ....................................... 2.2 14.8 6.9 6.2 5.6 1.1 0.6 0.9 0.4 15.7

 Other ........................................... Q Q 10.6 Q Q Q Q Q Q Q

 Mobile Homes ................................... 5.6 25.0 4.5 10.2 10.2 2.6 0.8 0.9 0.3 11.3

 Multi-Story 

 Apartment Building ............................ 24.2 103.1 4.3 44.6 37.8 8.6 5.1 5.1 1.9 5.7

Lighting

 Indoor Light Usage

 1 to 4 Hours a Day

 Yes ............................................... 87.0 493.3 5.7 212.4 176.8 38.5 28.2 27.0 10.4 2.3

 No ................................................ 9.6 29.3 3.0 Q 19.8 5.6 Q 2.9 1.0 7.6

 4 to 12 Hours a Day

 Yes ............................................... 83.2 487.8 5.9 187.3 196.6 38.8 25.1 29.9 10.2 2.3

 No ................................................ 13.4 34.7 2.6 25.0 Q 5.3 3.1 Q 1.2 6.2

 More than 12 Hours a Day

 Yes ............................................... 30.3 209.4 6.9 67.2 68.5 44.1 8.8 9.5 11.4 3.9

 No ................................................ 66.4 313.1 4.7 145.2 128.1 Q 19.5 20.4 Q 2.7

 Compact Fluorescent Light

 Bulbs Used

 Yes .................................................. 8.6 55.3 6.5 18.9 17.6 4.1 5.2 7.2 2.4 6.7

 No .................................................... 88.1 467.2 5.3 193.4 179.0 40.0 23.1 22.7 9.0 2.3

 Halogen Light Bulbs Used

 Yes .................................................. 11.2 72.8 6.5 28.3 27.0 5.7 4.9 5.1 1.8 6.1

 No .................................................... 85.4 449.8 5.3 184.1 169.6 38.4 23.3 24.8 9.6 2.3

1993 Family Income Category

 Less than $5,000 ............................... 4.1 15.3 3.8 6.1 6.0 1.8 0.6 0.6 0.3 11.6

 $5,000 to $9,999 ............................... 10.6 38.8 3.7 17.1 12.9 4.2 2.2 1.6 0.8 7.3

 $10,000 to $14,999 ........................... 11.1 47.9 4.3 20.2 17.5 4.7 2.5 2.3 0.8 6.7

 $15,000 to $19,999 ........................... 9.6 46.8 4.9 18.6 17.6 4.5 2.4 2.7 1.1 7.5

 $20,000 to $24,999 ........................... 8.7 42.3 4.8 16.8 16.1 3.5 2.8 2.3 0.8 7.7

 $25,000 to $34,999 ........................... 14.1 77.2 5.5 31.5 28.8 6.7 4.0 4.2 1.9 6.1

 $35,000 to $49,999 ........................... 17.5 106.6 6.1 43.5 40.7 8.2 5.3 6.3 2.5 5.0

 $50,000 to $74,999 ........................... 12.6 83.3 6.6 34.0 30.9 6.0 4.7 5.8 1.9 5.8

 $75,000 or More ................................ 8.3 64.4 7.7 24.6 26.1 4.4 3.8 4.2 1.4 9.1

See footnotes at end of table.

130 Energy Information Administration/Housing Characteristrics 1993
Table 3.22. Light Usage by Type of Bulb,

 U.S. Households and Lights, 1993 (Continued)

Housing Unit and Household

Characteristics

RSE Column Factor:

Total

Households

(millions)

Lights Used One or More Hours Per Day

RSE

Row

Factors

Total

Lights

(millions)

Average

per

Household

Incandescent Lights

(millions)

Fluorescent Lights

(millions)

1 to 4

Hours

4 to 12

Hours

More

than

12 Hours

1 to 4

Hours

4 to 12

Hours

More

than

12 Hours

0.7 0.7 0.4 0.8 0.8 1.4 1.5 1.5 2.4

Below Poverty Line

100 Percent ......................................... 14.4 59.2 4.1 25.5 20.8 6.9 2.7 2.4 1.0 6.1

125 Percent ......................................... 19.4 81.9 4.2 34.9 28.9 9.4 3.8 3.4 1.6 5.3

Eligible for Federal Assistance2 ...... 30.7 132.1 4.3 55.2 48.2 13.8 6.6 5.8 2.4 4.4

Payment Method for Fuel

and Electricity

 All Paid by Household ....................... 83.1 464.0 5.6 187.1 174.9 38.9 25.5 27.3 10.2 2.4

 Some Paid, Some in Rent ................. 8.3 36.2 4.4 16.0 13.0 3.3 1.6 1.5 0.9 8.8

 All Included in Rent ........................... 4.1 15.9 3.9 6.9 6.0 1.1 0.8 0.9 0.2 13.0

 Other Method .................................... 1.1 6.4 5.8 2.3 2.7 0.7 0.4 0.2 Q 33.8

Age of Householder

 Under 25 Years ................................. 5.7 25.5 4.5 11.1 9.8 2.2 1.2 0.9 0.3 10.8

 25 to 34 Years ................................... 19.9 107.5 5.4 46.9 39.9 9.2 4.2 5.1 2.3 4.9

 35 to 44 Years ................................... 21.4 134.6 6.3 57.2 50.8 10.5 6.6 7.2 2.4 4.3

 45 to 59 Years ................................... 21.9 125.8 5.8 48.2 48.7 10.6 7.3 8.1 2.9 5.0

 60 Years and Over ............................ 27.8 129.1 4.6 49.0 47.4 11.5 9.0 8.7 3.5 4.2

Race of Householder

 White ................................................. 80.2 447.6 5.6 179.7 168.7 37.4 24.9 26.6 10.3 2.5

 Black ................................................. 10.9 47.4 4.3 21.3 17.2 4.6 2.0 1.7 0.6 8.2

 Other3 ............................................... 5.5 27.5 5.0 11.3 10.7 2.0 1.3 1.6 0.5 10.9

Householder of Hispanic Descent

 Yes .................................................... 7.9 35.3 4.5 16.0 12.9 2.4 1.9 1.6 0.6 9.5

 No ...................................................... 88.7 487.2 5.5 196.4 183.7 41.7 26.3 28.2 10.9 2.3

Household Size

 1 Person ............................................ 23.5 89.2 3.8 38.1 32.8 7.2 4.6 4.9 1.6 4.5

 2 Persons .......................................... 31.7 165.4 5.2 63.5 62.9 13.2 10.9 10.8 4.1 3.5

 3 Persons .......................................... 16.6 96.6 5.8 39.6 36.2 8.4 4.7 5.6 2.2 6.5

 4 Persons .......................................... 14.6 98.1 6.7 39.8 37.3 8.4 5.1 5.5 2.0 5.0

 5 Persons .......................................... 6.8 49.3 7.3 20.6 18.8 4.5 2.0 2.4 1.0 8.4

 6 or More Persons ............................. 3.5 24.0 6.9 10.8 8.6 2.4 0.9 0.8 0.6 10.8

1 Does not include all new construction for 1993. 2 Below 150 percent of poverty line or 60 percent of median State income. 3 Includes 1.7 million householders who described themselves as Hispanic rather than White, Black, or other.

Q = Data withheld either because the Relative Standard Error (RSE) was greater than 50 percent or fewer than 10 households were sampled.

Notes: • To obtain the RSE percentage for any table cell, multiply the corresponding column and row factors. • Because of rounding, data may not sum to totals.

 • See "Glossary" for definition of terms used in this report.

Source: Energy Information Administration, Office of Energy Markets and End Use, Forms EIA-457 A, B, C of the 1993 Residential Energy Consumption Survey.

 (For specific titles of forms, see Appendix D.)

Energy Information Administration/Housing Characteristrics 1993 131