[6] Generac's power systems range in output from 800 watts to 9 megawatts,[7] and are available through independent dealers, retailers and wholesalers.

[7] Founded by Robert Kern in 1959, the company soon began producing portable generators for Sears, Roebuck and Co. under the Craftsman brand.

[7] By end of the 1980s, the company was manufacturing residential, commercial and industrial generators, and in 1989, Generac introduced the first gaseous-fueled automatic home standby system.

[11] Generac's industrial sizing application, Power Design Pro, received silver in the 2010 Plant Engineering "Product of the Year" award.

[14] Generac manufactures gasoline-fueled, diesel-fueled and bi-fuel engine-driven power generation equipment, modular paralleling systems, automatic transfer switches and small engines.