12 kW¹ Fortress Standby Generator System

With its sleek, compact profile, the 12kW¹ Home Standby Generator adds new dimension to “Powering More for Less."

Symphony II^®

Thanks to Symphony^® II Power Management System, a smaller home generator system by Briggs & Stratton can meet all your needs and save you money in the process.

6 Year Parts, Labor & Travel Limited Warranty

The longest warranty in the industry. Our most comprehensive 6 year parts, labor & travel limited warranty.

Now 60% Quieter*

Powered by our high-quality Vanguard engine, improved muffler design and re-engineered alternator intake ducting, the new 12kW is 60% quieter than our old 12kW.

Streamlined, Space-Saving Design

With the streamlined, compact design, the new 12kW is 50% smaller than our previous 12kW generator.

Durable Enclosure

Designed to weather the elements, the system's enclosure is made from automotive-grade Galvanneal steel to resist rust. Its advanced powder coat paint process results in years of protection against chips and abrasions.