In this Friday, Nov. 16, 2012, photo, employees work at a shipping area of Generac Power Systems, Inc., one of the largest makers of residential generators in the U.S., in Whitewater, W

 

              In this Friday, Nov. 16, 2012, photo, employees work at a shipping area of Generac Power Systems, Inc., one of the largest makers of residential generators in the U.S., in Whitewater, W
In this Friday, Nov. 16, 2012, photo, employees work at a shipping area of Generac Power Systems, Inc., one of the largest makers of residential generators in the U.S., in Whitewater, Wis. U.S. companies increased their stockpiles a steady pace in November from October, responding to a solid increase in sales.The Commerce Department said Tuesday that business inventories grew 0.3 percent in November, matching the October gain. (AP Photo/Nam Y. Huh)