Generac QuietSource Series

24/7 power protection for your home or business from unexpected power outages with the Generac ® QuietSource ® Series 22 kW automatic standby generator when combined with a Generac Nexus Smart Switch. Premium features are standard on the ultimate standby generator. Thanks to the low-speed engine, it’s so quiet you’ll forget you own a generator until you need it. Ideal for large residential and small to medium commercial applications. Transfer switch sold separately


Premium-Grade Standby Generator

  • High-quality, liquid-cooled standby generator
  • Designed for luxury homes and commercial buildings


  • Low-speed exercise mode for quieter weekly tests
  • Exercises at a quiet 61 decibels at 23 feet
  • Sound level comparable to an idling car

Automotive-Style Engine

  • Powerful Generac in-line 4-cylinder automotive engine
  • Operates at half the speed of other engines (1800 vs. 3600 RPM)
  • Runs at a quiet 70 decibels at 23 feet under load

Aluminum Enclosure

  • Corrosion-resistant material ideal for salty air conditions
  • Sound attenuated acoustically designed enclosure

Tri-Lingual Digital Nexus™ Controller

  • Two-Line LCD Display provides service & maintenance intervals

Automatic Shutdown

  • High coolant temp, low coolant, low oil pressure and overspeed

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