Table 4.10. Net Metering Customers and Capacity by Technology Type, by End Use Sector,
2003 through 2012

  Capacity (MW) Customers
Year Residential Commercial Industrial Transportation Total Residential Commercial Industrial Transportation Total
Historical Data
2003 N/A N/A N/A N/A N/A 5,870 775 168 -- 6,813
2004 N/A N/A N/A N/A N/A 14,114 1,494 215 3 15,826
2005 N/A N/A N/A N/A N/A 19,244 1,565 337 -- 21,146
2006 N/A N/A N/A N/A N/A 30,689 2,553 376 -- 33,618
2007 N/A N/A N/A N/A N/A 44,450 3,513 391 -- 48,354
2008 N/A N/A N/A N/A N/A 64,400 5,305 304 -- 70,009
2009 N/A N/A N/A N/A N/A 88,205 7,365 919 -- 96,489
Photovoltaic
2010 697.890 517.861 243.051 -- 1,458.802 137,618 11,897 1,225 -- 150,740
2011 1,024.139 1,089.275 381.670 -- 2,495.410 198,255 18,345 2,418 -- 219,018
2012 1,542.226 1,741.821 395.328 -- 3,679.630 294,437 27,611 1,317 -- 323,365
Wind
2010 83.797 26.106 6.392 -- 116.295 3,467 583 37 -- 4,087
2011 28.063 44.373 9.932 -- 82.368 4,456 905 50 -- 5,411
2012 33.484 74.620 17.495 -- 125.599 4,796 1,143 48 -- 5,987
Other
2010 11.455 34.752 24.835 -- 71.042 767 271 56 -- 1,094
2011 5.030 49.010 56.681 -- 110.721 807 242 100 -- 1,149
2012 7.539 65.821 83.170 -- 156.530 862 314 122 -- 1,298
All Technologies
2010 793.142 578.719 274.278 -- 1,646.139 141,852 12,751 1,318 -- 155,921
2011 1,057.232 1,182.658 448.283 -- 2,688.173 203,518 19,492 2,568 -- 225,578
2012 1,583.249 1,882.262 495.993 -- 3,961.504 300,095 29,068 1,487 -- 330,650

N/A = Not Available.
Capacity and customer count was not collected by technology type before 2010.
Total customer count for the years 2007, 2009, and 2010 were revised based on requests from respondents.
Source: U.S. Energy Information Administration, Form EIA-861, "Annual Electric Power Industry Report."