Last revised
07/21/2003
The Potential For
Cost Effective Savings
In Residential Buildings
The untapped potential for homes to save energy, cost effectively, is summarized in the table below:
|
Electricity |
Fuel |
Site |
Levelized Cost (1990$) |
Average Site Cost-Effective Savings ($/MBtu) |
|
| Multifamily retrofit |
|
|
|
|
|
| Fuel heat |
58.7 % |
51.1 % |
51.7 % |
44.4 |
1.48 |
| Electric heat |
62.3 % |
69.2 % |
68.2 % |
128.9 |
6.14 |
| Multifamily new |
|
|
|
|
|
| Fuel heat |
51.8 % |
54.4 % |
54.2 % |
73.8 |
2.84 |
| Electric heat |
52.3 % |
71.8 % |
69.1 % |
134.2 |
7.51 |
| Single-family retrofit |
|
|
|
|
|
| Gas heat |
56.2 % |
65.0 % |
64.0 % |
209.2 |
3.68 |
| Electric heat |
78.7 % |
89.0 % |
87.4 % |
518.1 |
9.11 |
| Heat pump |
80.9 |
67.8 % |
71.2 % |
256.9 |
8.93 |
| Single-family new |
|
|
|
|
|
| Gas heat |
55.7 % |
62.9 % |
62.0 % |
160.7 |
4.95 |
| Electric heat |
54.9 % |
78.4 % |
74.6 % |
146.2 |
5.27 |
| Heat pump |
67.9 % |
69.1 % |
68.8 % |
204.7 |
11.98 |
| Home Appliances |
|
|
|
|
|
| Refrigerator/freezer |
76.1 % |
--- |
76.1 % |
25.7 |
10.35 |
| Freezers |
72.6 % |
--- |
72.6 % |
21.0 |
10.65 |
| Electric hot water |
64.9 % |
--- |
74.9 % |
82.1 |
7.94 |
| Gas hot water |
--- |
38.7 % |
38.7 % |
21.0 |
2.41 |
| Lighting |
76.0 % |
--- |
76.0 % |
17.7 |
6.83 |
| Clothes washer |
45.8 % |
--- |
45.8 % |
--- |
--- |
| Electric clothes dryer |
85.7 % |
--- |
85.7 % |
29.8 |
9.62 |
| Gas clothes dryer |
--- |
59.4 % |
59.4 % |
10.5 |
4.9 |
| Electric oven/cooktop |
38.9 % |
--- |
38.9 % |
6.9 |
6.98 |
| Gas oven/cooktop |
--- |
44.9 % |
44.9 % |
4.0 |
4.37 |
1) Copies of the report this data came from are available
for $15 from the Union Of Concerned Scientists,
26 Church St., Cambridge, MA 02238; the technical appendices are an additional $25.
Add 20% of the total cost to cover shipping & handling.
Last revised
07/21/2003
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