2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | ||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Total Apartments Water Heater Stock (thousands) | 54.7 | 55.3 | 55.8 | 56.2 | 57.5 | 58.1 | 58.5 | 59.5 | 60.0 | 60.7 | 61.4 | 62.3 | 63.3 | 64.4 | 65.1 | 65.5 | 66.5 | 66.7 | |
Water Heater Stock by Energy Source (thousands) | |||||||||||||||||||
Electricity | 49.1 | 49.7 | 50.3 | 50.6 | 51.8 | 52.4 | 53.0 | 54.1 | 54.8 | 55.7 | 56.8 | 58.0 | 59.4 | 60.9 | 61.9 | 62.5 | 63.8 | 64.2 | |
Natural Gas | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.3 | 0.7 | 1.1 | 1.4 | 1.7 | 1.9 | 2.2 | 2.1 | 1.9 | 1.7 | 1.5 | 1.4 | 1.2 | |
Heating Oil | 4.7 | 4.8 | 4.7 | 4.7 | 4.7 | 4.3 | 3.7 | 3.2 | 2.7 | 2.2 | 1.7 | 1.3 | 1.0 | 1.0 | 0.9 | 0.9 | 0.8 | 0.8 | |
Steam | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | |
Other1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.2 | 0.2 | 0.2 | |
Wood | 0.8 | 0.8 | 0.7 | 0.9 | 1.0 | 1.0 | 1.0 | 1.1 | 1.1 | 1.1 | 0.9 | 0.7 | 0.7 | 0.6 | 0.5 | 0.4 | 0.4 | 0.3 | |
Shares (%) | |||||||||||||||||||
Electricity | 89.8 | 89.9 | 90.2 | 90.0 | 90.0 | 90.3 | 90.6 | 91.0 | 91.3 | 91.7 | 92.6 | 93.2 | 93.8 | 94.5 | 95.0 | 95.5 | 95.9 | 96.3 | |
Natural Gas | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.6 | 1.2 | 1.8 | 2.3 | 2.7 | 3.1 | 3.5 | 3.3 | 2.9 | 2.6 | 2.3 | 2.0 | 1.8 | |
Heating Oil | 8.6 | 8.7 | 8.5 | 8.3 | 8.1 | 7.4 | 6.4 | 5.4 | 4.5 | 3.7 | 2.7 | 2.0 | 1.6 | 1.5 | 1.4 | 1.3 | 1.2 | 1.1 | |
Steam | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | |
Other1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.2 | 0.2 | 0.2 | 0.3 | 0.3 | |
Wood | 1.5 | 1.4 | 1.3 | 1.6 | 1.8 | 1.7 | 1.8 | 1.8 | 1.8 | 1.8 | 1.4 | 1.2 | 1.1 | 1.0 | 0.8 | 0.7 | 0.6 | 0.5 | |
Total Mobile Homes Water Heater Stock (thousands) | 15.0 | 15.1 | 15.3 | 15.5 | 15.7 | 15.9 | 16.0 | 16.2 | 16.3 | 16.4 | 16.5 | 16.6 | 16.7 | 16.8 | 16.9 | 16.9 | 17.0 | 17.0 | |
Water Heater Stock by Energy Source (thousands) | |||||||||||||||||||
Electricity | 13.4 | 13.6 | 13.8 | 13.9 | 14.1 | 14.3 | 14.5 | 14.7 | 14.9 | 15.1 | 15.3 | 15.5 | 15.7 | 15.9 | 16.0 | 16.2 | 16.3 | 16.4 | |
Natural Gas | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 | 0.2 | 0.3 | 0.4 | 0.5 | 0.5 | 0.6 | 0.5 | 0.5 | 0.4 | 0.4 | 0.3 | 0.3 | |
Heating Oil | 1.3 | 1.3 | 1.3 | 1.3 | 1.3 | 1.2 | 1.0 | 0.9 | 0.7 | 0.6 | 0.4 | 0.3 | 0.3 | 0.3 | 0.2 | 0.2 | 0.2 | 0.2 | |
Steam | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | |
Other1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 | |
Wood | 0.2 | 0.2 | 0.2 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.2 | 0.2 | 0.2 | 0.2 | 0.1 | 0.1 | 0.1 | 0.1 | |
Shares (%) | |||||||||||||||||||
Electricity | 89.8 | 89.9 | 90.2 | 90.0 | 90.0 | 90.3 | 90.6 | 91.0 | 91.3 | 91.7 | 92.6 | 93.2 | 93.8 | 94.5 | 95.0 | 95.5 | 95.9 | 96.3 | |
Natural Gas | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.6 | 1.2 | 1.8 | 2.3 | 2.7 | 3.1 | 3.5 | 3.3 | 2.9 | 2.6 | 2.3 | 2.0 | 1.8 | |
Heating Oil | 8.6 | 8.7 | 8.5 | 8.3 | 8.1 | 7.4 | 6.4 | 5.4 | 4.5 | 3.7 | 2.7 | 2.0 | 1.6 | 1.5 | 1.4 | 1.3 | 1.2 | 1.1 | |
Steam | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | |
Other1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.2 | 0.2 | 0.2 | 0.3 | 0.3 | |
Wood | 1.5 | 1.4 | 1.3 | 1.6 | 1.8 | 1.7 | 1.8 | 1.8 | 1.8 | 1.8 | 1.4 | 1.2 | 1.1 | 1.0 | 0.8 | 0.7 | 0.6 | 0.5 |