2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | ||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Total Apartments Water Heater Stock (thousands) | 243.7 | 250.2 | 255.9 | 263.6 | 271.4 | 278.2 | 285.7 | 292.0 | 301.9 | 310.7 | 316.9 | 320.7 | 325.7 | 333.1 | 342.0 | 353.8 | 367.8 | 375.7 | |
Water Heater Stock by Energy Source (thousands) | |||||||||||||||||||
Electricity | 14.9 | 15.4 | 14.9 | 16.5 | 17.1 | 17.9 | 18.9 | 20.4 | 21.9 | 23.9 | 24.1 | 25.8 | 27.2 | 29.1 | 31.2 | 33.7 | 36.6 | 39.1 | |
Natural Gas | 225.7 | 231.8 | 238.1 | 244.0 | 250.2 | 255.7 | 261.6 | 266.2 | 274.1 | 280.5 | 286.5 | 289.3 | 293.1 | 298.9 | 305.9 | 315.3 | 326.5 | 332.1 | |
Heating Oil | 1.1 | 1.3 | 1.2 | 1.3 | 1.7 | 2.0 | 2.2 | 2.3 | 2.5 | 2.8 | 2.9 | 2.7 | 2.7 | 2.6 | 2.6 | 2.6 | 2.6 | 2.5 | |
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 | 1.7 | 1.5 | 1.4 | 1.5 | 2.0 | 2.3 | 2.6 | 2.7 | 2.8 | 3.0 | 2.9 | 2.4 | 2.2 | 1.9 | 1.7 | 1.6 | 1.5 | 1.4 | |
Wood | 0.3 | 0.2 | 0.2 | 0.2 | 0.3 | 0.4 | 0.4 | 0.4 | 0.5 | 0.5 | 0.6 | 0.5 | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 | |
Shares (%) | |||||||||||||||||||
Electricity | 6.1 | 6.1 | 5.8 | 6.3 | 6.3 | 6.4 | 6.6 | 7.0 | 7.3 | 7.7 | 7.6 | 8.0 | 8.4 | 8.7 | 9.1 | 9.5 | 10.0 | 10.4 | |
Natural Gas | 92.6 | 92.7 | 93.0 | 92.6 | 92.2 | 91.9 | 91.6 | 91.2 | 90.8 | 90.3 | 90.4 | 90.2 | 90.0 | 89.7 | 89.4 | 89.1 | 88.8 | 88.4 | |
Heating Oil | 0.5 | 0.5 | 0.5 | 0.5 | 0.6 | 0.7 | 0.8 | 0.8 | 0.8 | 0.9 | 0.9 | 0.8 | 0.8 | 0.8 | 0.8 | 0.7 | 0.7 | 0.7 | |
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 | 0.7 | 0.6 | 0.6 | 0.6 | 0.7 | 0.8 | 0.9 | 0.9 | 0.9 | 0.9 | 0.9 | 0.8 | 0.7 | 0.6 | 0.5 | 0.4 | 0.4 | 0.4 | |
Wood | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | |
Total Mobile Homes Water Heater Stock (thousands) | 47.7 | 48.6 | 49.7 | 51.0 | 52.3 | 53.7 | 55.1 | 56.8 | 58.0 | 58.8 | 59.8 | 60.6 | 61.5 | 62.4 | 63.4 | 64.4 | 65.0 | 65.7 | |
Water Heater Stock by Energy Source (thousands) | |||||||||||||||||||
Electricity | 2.9 | 3.0 | 2.9 | 3.2 | 3.3 | 3.5 | 3.6 | 4.0 | 4.2 | 4.5 | 4.5 | 4.9 | 5.1 | 5.5 | 5.8 | 6.1 | 6.5 | 6.8 | |
Natural Gas | 44.2 | 45.0 | 46.2 | 47.2 | 48.2 | 49.3 | 50.5 | 51.8 | 52.7 | 53.1 | 54.1 | 54.7 | 55.3 | 56.0 | 56.7 | 57.4 | 57.7 | 58.0 | |
Heating Oil | 0.2 | 0.2 | 0.2 | 0.3 | 0.3 | 0.4 | 0.4 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.4 | |
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 | 0.3 | 0.3 | 0.3 | 0.3 | 0.4 | 0.4 | 0.5 | 0.5 | 0.5 | 0.6 | 0.5 | 0.5 | 0.4 | 0.4 | 0.3 | 0.3 | 0.3 | 0.2 | |
Wood | 0.1 | 0.0 | 0.0 | 0.0 | 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 | 0.1 | |
Shares (%) | |||||||||||||||||||
Electricity | 6.1 | 6.1 | 5.8 | 6.3 | 6.3 | 6.4 | 6.6 | 7.0 | 7.3 | 7.7 | 7.6 | 8.0 | 8.4 | 8.7 | 9.1 | 9.5 | 10.0 | 10.4 | |
Natural Gas | 92.6 | 92.7 | 93.0 | 92.6 | 92.2 | 91.9 | 91.6 | 91.2 | 90.8 | 90.3 | 90.4 | 90.2 | 90.0 | 89.7 | 89.4 | 89.1 | 88.8 | 88.4 | |
Heating Oil | 0.5 | 0.5 | 0.5 | 0.5 | 0.6 | 0.7 | 0.8 | 0.8 | 0.8 | 0.9 | 0.9 | 0.8 | 0.8 | 0.8 | 0.8 | 0.7 | 0.7 | 0.7 | |
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 | 0.7 | 0.6 | 0.6 | 0.6 | 0.7 | 0.8 | 0.9 | 0.9 | 0.9 | 0.9 | 0.9 | 0.8 | 0.7 | 0.6 | 0.5 | 0.4 | 0.4 | 0.4 | |
Wood | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 |