Briggs & Stratton 40236 15,000-Watt Bi-Fuel Standby Generator with 100 Amp Automatic Transfer Switch 15,000-watt bi-fuel standby generator powered by durable Briggs & 895cc Vanguard engine 100 amp automatic transfer switch for ready-to-go power Enough power to run two 4-ton central air conditioners Computer-friendly internal voltage regulator protects sensitive electronic equipment Non-CARB Compliant/Not For Sale In California