Installer-level revenues grew an estimated 17.7 percent in 2005 to $7.3 billion, according to an estimate by Parks Associates.
The company, which based its conclusions in part on installer surveys, broke out revenues by $3.1 billion in product sales and $4.1 billion in labor revenue (see chart below). For 2006, Parks estimates revenue growth of 13.7% to $8.3 billion, broken out buy $3.5 billion in product sales and $4.8 billion in labor.
