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Table 2 Regional energy savings for existing single-family homes increasing insulation from current practice to IECC 2000 levels.

From: The public health benefits of insulation retrofits in existing housing in the United States

 

Northeast (NE/MA)

Midwest (ENC/WNC)

South (SA/ESC/WSC)

West (MTN/PA)

Total

All-electric homes

     

   # households (millions)

1.0

1.6

11

3.8

17

   Source savings (TBTU/year, % of national total)

15 (5%)

31 (11%)

190 (69%)

41 (15%)

280

   Per-capita savings (MMBTU/household/year)

15

20

17

11

16

Non-electric heated homes

     

   # households (millions)

6.5

9.9

7.5

5.3

29

   Source savings, fossil fuel (TBTU/year, % of national total)

130 (26%)

220 (46%)

97 (20%)

43 (9%)

490

   Source savings, electricity (TBTU/year, % of national total)

0.43 (2%)

1.6 (6%)

25 (89%)

0.98 (3%)

28

   Source savings, total (TBTU/year, % of national total)

130 (24%)

230 (44%)

120 (24%)

44 (8%)

520

   Per-capita savings(MMBTU/household/year)

19

23

16

8.3

18

  1. Note: Estimates are presented to two significant figures; sums may not add due to rounding. Percentages represent the fraction of benefits within each region.