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Table 8c. U.S. Residential Energy Intensity Using Weather-Adjusted Primary Energy by Census Region and Type of Housing Unit, 1980-1997 (1000 Btu per Square Foot)

Type of Housing Unit and Census Region                           Survey Years                Excel Worksheet (xls)

1980

1981

1982

1984

1987

1990

1993

1997
2001

U.S. Total

97

98

92

98

96

95

89

102
81

Mobile Home

173

160

151

161

164

157

159

160
153

Single-Family Detached

89

92

86

91

89

88

83

97
77

Single-Family Attached

89

81

88

90

86

95

88

101
71

Apartments in Buildings with 2 to 4 Units

131

120

113

114

118

121

114

137
93

Apartments in Buildings with 5 or More Units

133

126

125

133

130

115

104

104
99

Total Northeast

90

89

84

90

90

87

81

97
73

Mobile Home

164

159

185

174

178

161

149

149
145

Single-Family Detached

74

76

70

78

78

78

73

89
67

Single-Family Attached

90

75

88

85

87

82

80

109
69

Apartments in Buildings with 2 to 4 Units

130

123

111

112

112

124

103

134
79

Apartments in Buildings with 5 or More Units

164

150

152

159

143

107

109

112
98

Total Midwest

99

104

93

100

94

94

89

102
79

Mobile Home

196

187

165

183

185

170

171

196
169

Single-Family Detached

93

99

86

92

87

86

82

96
76

Single-Family Attached

102

99

103

87

73

98

84

106
67

Apartments in Buildings with 2 to 4 Units

140

121

116

119

127

126

141

163
105

Apartments in Buildings with 5 or More Units

130

141

131

145

142

118

121

114
93

Total South

108

103

104

106

108

107

103

114
92

Mobile Home

178

155

157

155

169

161

164

157
162

Single-Family Detached

101

99

98

100

101

102

97

112
86

Single-Family Attached

90

90

96

111

98

108

107

101
82

Apartments in Buildings with 2 to 4 Units

130

132

129

127

131

127

120

132
114

Apartments in Buildings with 5 or More Units

137

110

142

141

141

133

112

110
122

Total West

86

94

85

93

86

89

77

89
72

Mobile Home

153

149

120

146

126

133

140

150
128

Single-Family Detached

81

91

83

90

81

83

73

86
67

Single-Family Attached

80

77

77

64

80

105

72

85
63

Apartments in Buildings with 2 to 4 Units

118

101

99

102

103

101

103

96
87

Apartments in Buildings with 5 or More Units

85

99

80

97

96

101

79

86
82


Note: In the 1997 RECS the floor area of the housing unit was not measured. The heated floorspace was estimated using regression analysis. Prior 1997 and 2001 estimates include all the floor area of the housing unit that was enclosed from the weather.
Sources: Energy Information Administration, Residential Energy Consumption Surveys 1980, 1981, 1982, 1984, 1987, 1990, 1993, 1997, and 2001; National Oceanic and Atmospheric Administration tapes.

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For specific questions about the "Residential Energy Intensity Using Weather-Adjusted Primary Energy 
(1000  Btu per Sq. Ft.)", please contact:

Stephanie J. Battles
stephanie.battles@eia.doe.gov
Phone: 202-586-7237
Fax:  202-586-0018

Release Date: September 2, 2004 

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