Best 100 AMP Generator in 2025
Updated on July 2025
#1
Recommended
10% Off
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- Monitor your generator from anywhere with Mobile Link Wi-Fi connectivity, which provides updates on performance and maintenance alerts.
- Ensure reliable power during outages with the 100 Amp 16-circuit transfer switch, featuring a durable aluminum enclosure for outdoor use.
- Benefit from a 5-Year Limited Warranty on the automatic transfer switch for dependable performance and longevity.
- Experience clean, stable power with True Power Technology, delivering 10,000 watts with minimal harmonic distortion while using less fuel and operating quietly.
- Engineered and assembled in the USA, featuring a G-Force Engine designed for durability and reduced maintenance requirements.
- Installation should be performed by a certified and licensed electrician for safety and reliability.
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- Monitor your generator from anywhere with Mobile Link Wi-Fi connectivity, which provides updates on performance and maintenance alerts.
- Ensure reliable power during outages with the 100 Amp 16-circuit transfer switch, featuring a durable aluminum enclosure for outdoor use.
- Benefit from a 5-Year Limited Warranty on the automatic transfer switch for dependable performance and longevity.
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#2
Value for Money
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- Suitable as a backup power supply for large homes or for portable power needs
- Offers peak wattage of 14,500 (gasoline) and 13,500 (propane), with running wattage of 11,500 (gasoline) and 10,500 (propane)
- Can operate for up to 19 hours on a 9.5-gallon fuel tank; about 7 hours on a 20 lb. propane tank
- Equipped with a robust 550cc 4-Stroke OHV engine featuring a durable cast iron sleeve
- Tested for functionality in the factory, may have residual oil or fuel odor; complies with EPA standards; includes a 3-year limited service, labor, and parts warranty with nationwide customer service
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- Suitable as a backup power supply for large homes or for portable power needs
- Offers peak wattage of 14,500 (gasoline) and 13,500 (propane), with running wattage of 11,500 (gasoline) and 10,500 (propane)
- Can operate for up to 19 hours on a 9.5-gallon fuel tank; about 7 hours on a 20 lb. propane tank
- Equipped with a robust 550cc 4-Stroke OHV engine featuring a durable cast iron sleeve
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#3
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- Automatic or manual switching function allows for seamless power transfer during outages or voltage fluctuations, ensuring continuous equipment operation.
- Designed for high reliability with a 100A capacity, suitable for industrial, commercial, and high-power applications like RVs and speedboats.
- Metal housing offers durability against harsh weather, providing stable power supply for various generators and energy systems.
- Enhanced safety features include overload protection to prevent equipment damage and a secure cover design to deter accidental activation.
- User-friendly maintenance with optimized power usage and flexible wiring options; professional installation recommended for optimal safety.
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- Automatic or manual switching function allows for seamless power transfer during outages or voltage fluctuations, ensuring continuous equipment operation.
- Designed for high reliability with a 100A capacity, suitable for industrial, commercial, and high-power applications like RVs and speedboats.
- Metal housing offers durability against harsh weather, providing stable power supply for various generators and energy systems.
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#4
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- 9500 running watts and 12500 peak watts on gasoline; 8500 running watts and 11200 peak watts on propane; remote start available with included key fob; offers electric and recoil start options
- Equipped with two GFCI 120V 5–20R standard household receptacles, one transfer switch ready 120V L14-30R, and one RV ready 120/240V 14–50R; all outlets are protected with rubber covers
- Powered by a 457cc Westinghouse 4-Stroke OHV engine featuring a durable cast iron sleeve; includes automatic low oil shutdown and a digital hour meter; VFT display provides real-time updates on voltage, frequency, and operating hours
- Includes a remote start key fob, 12V battery charger, oil, oil funnel, tool kit, and user manual for easy setup; minimal assembly required
- Factory-tested for functionality; may contain residual oil or fuel odor; EPA compliant; comes with a 3-year limited service, labor, and parts coverage and access to nationwide customer service
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- 9500 running watts and 12500 peak watts on gasoline; 8500 running watts and 11200 peak watts on propane; remote start available with included key fob; offers electric and recoil start options
- Equipped with two GFCI 120V 5–20R standard household receptacles, one transfer switch ready 120V L14-30R, and one RV ready 120/240V 14–50R; all outlets are protected with rubber covers
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#5
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- Automatic transfer switch ensures seamless power transfer during outages for single-phase generators
- Advanced technology for managing up to 4 HVAC loads, providing efficient energy distribution
- 5-Year Limited Warranty guarantees reliability and long-term performance
- Includes built-in service disconnect for safety and UL Listed for quality assurance
- Generac is a leading brand in home standby generators, known for dependable power solutions
- Installation by a licensed electrician recommended; dimensions are 7.1" x 20.0" x 14.6" with mounting holes at 17.2" x 12.5"
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- Automatic transfer switch ensures seamless power transfer during outages for single-phase generators
- Advanced technology for managing up to 4 HVAC loads, providing efficient energy distribution
- 5-Year Limited Warranty guarantees reliability and long-term performance
- Includes built-in service disconnect for safety and UL Listed for quality assurance
- Generac is a leading brand in home standby generators, known for dependable power solutions
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#6
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- 28,000 peak watts and 20,000 running watts; easy-access start panel includes remote start fob and push-button electric start; engine shut-off feature and integrated battery charging port; fuel gauge present
- Equipped with multiple outlets including four 120V GFCI outlets, two 50A outlets (120/240V), two 30A outlets (120/240V), and one 30A 120V outlet; all outlets are fitted with rubber covers for safety
- Powered by a robust 999cc Westinghouse V-Twin OHV engine with a cast iron sleeve; features reinforced steel handles, automatic low oil shutoff, carbon monoxide shutdown, and idle control
- Includes oil, funnel, setup guide, and manual for easy initial setup; digital display shows lifetime run hours, voltage, and frequency
- All Westinghouse portable generators are factory tested and may have minimal residual oil or fuel odor; compliant with EPA regulations; comes with a 3-year limited warranty covering service, labor, and parts, with a nationwide customer support network
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- 28,000 peak watts and 20,000 running watts; easy-access start panel includes remote start fob and push-button electric start; engine shut-off feature and integrated battery charging port; fuel gauge present
- Equipped with multiple outlets including four 120V GFCI outlets, two 50A outlets (120/240V), two 30A outlets (120/240V), and one 30A 120V outlet; all outlets are fitted with rubber covers for safety
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#7
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- XP13000EH Dual Fuel generator delivers 13,000 watts of power for comprehensive home backup during outages.
- DuroMax leads the industry with a range of Dual Fuel portable generators suitable for various needs.
- Equipped with a reliable DuroMax engine designed for durability and performance.
- Features a push-button start, an easy-to-use fuel type selector, and multiple outlet options.
- Durable all-metal construction ensures long-lasting use without plastic components.
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- XP13000EH Dual Fuel generator delivers 13,000 watts of power for comprehensive home backup during outages.
- DuroMax leads the industry with a range of Dual Fuel portable generators suitable for various needs.
- Equipped with a reliable DuroMax engine designed for durability and performance.
- Features a push-button start, an easy-to-use fuel type selector, and multiple outlet options.
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#8
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- 100A generator transfer switch for seamless power management between electric company and auxiliary power sources like gas generators or solar.
- Manual design with aluminum connections ensures durability and avoids common issues associated with electronic components, promising over a decade of reliable service.
- Galvanized steel casing provides robustness and resistance to corrosion and rust, designed to endure harsh weather conditions as per NEMA 3R standards.
- Safety features include a lock hole to prevent accidental shutdown and a grounding position to mitigate potential electrical hazards during operation.
- Quick installation process with comprehensive instructions, though professional installation is strongly recommended for safety.
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- 100A generator transfer switch for seamless power management between electric company and auxiliary power sources like gas generators or solar.
- Manual design with aluminum connections ensures durability and avoids common issues associated with electronic components, promising over a decade of reliable service.
- Galvanized steel casing provides robustness and resistance to corrosion and rust, designed to endure harsh weather conditions as per NEMA 3R standards.
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#9
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- Compatible with Siemens/Murray 100 Amp panels
- 7/8" spacing for Plug on Neutral panels; 1 1/4" for NON Plug on Neutral
- Prevents simultaneous mains and generator power; safely directs generator power to home circuits
- Simple installation for connecting generator to Murray or Siemens panels
- Includes interlocking plate, screws, nuts, drill bit, reminder labels, zip ties, and instructions
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- Compatible with Siemens/Murray 100 Amp panels
- 7/8" spacing for Plug on Neutral panels; 1 1/4" for NON Plug on Neutral
- Prevents simultaneous mains and generator power; safely directs generator power to home circuits
- Simple installation for connecting generator to Murray or Siemens panels
- Includes interlocking plate, screws, nuts, drill bit, reminder labels, zip ties, and instructions
#10
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- Compatible with Square D QO and Homeline panels for 100 and 125 amp configurations
- Single handle with 3/4 - 7/8 inches spacing between main and branch breakers for optimal installation
- Ensures safe and cost-effective connection for portable generators during power outages
- Simplifies generator connection to the electrical panel, preventing simultaneous power from generator and main supply
- Includes all necessary components for installation such as an interlocking plate, screws, nuts, drill bit, labels, and zip ties
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- Compatible with Square D QO and Homeline panels for 100 and 125 amp configurations
- Single handle with 3/4 - 7/8 inches spacing between main and branch breakers for optimal installation
- Ensures safe and cost-effective connection for portable generators during power outages
- Simplifies generator connection to the electrical panel, preventing simultaneous power from generator and main supply
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