The 11 best large inverter generators of 2025

9000 Running Watts and 11000 Peak Watts (Gasoline), 8100 Running Watts and 10000 Peak Watts (Propane) at Less Than 3% THD; Remote Electric Start With Included Key Fob, Push Button and Recoil Start; Up to 17 Hours of Run Time on a 9.8 Gallon Fuel Tank

Features Two GFCI 120V 5–20R Standard Household Outlets, One Transfer Switch Ready 120V L14-30R Outlet, and One Transfer Switch Ready 120/240V 14–50R Outlet; All Outlets Have Rubber Covers for Added Safety

Led Data Center: Rotating Digital Display Shows Fuel Level, Power Output, Remaining Run Time, Voltage Output, and Lifetime Hours

Powered by a Heavy Duty 452cc Westinghouse 4-Stroke OHV Engine Featuring a Long-Lasting Cast Iron Sleeve With Automatic Low Oil Shutdown and Carbon Monoxide (CO) Sensor

Plug-and-Play: Comes With a Remote Start Key Fob, 12V Battery Charger, Oil, an Oil Funnel, a Tool Kit, and a User’s Manual to Get You Started Right Out of the Box (Minimal Assembly Required)

All Westinghouse Portable Generators are Functionally Tested in the Factory and May Contain Minimum Residual Oil and/or Fuel Odor; EPA Compliant; Backed By 3-Year Limited Service, Labor, and Parts Coverage and Nationwide Customer Service Network

Operate your 11,000-watt portable generator right out of the box on either gasoline or propane, plus features CO Shield carbon monoxide auto shutoff system

At 11,000 starting watts and 9,000 running watts on gasoline, and 11,000 starting watts and 8,100 running watts on propane, enjoy up to 15 hours of run time on a full tank of gasoline with a noise level of 64 dBA from 23 feet

Trust the reliable 459cc Champion engine with its battery-included electric start feature and built-in Cold Start Technology for easy starts in cold weather

Two 120V 20A GFCI household duplex outlets, a 120/240V 30A locking outlet, a 120/240V 37.5A outlet, and a 12V automotive-style outlet

Includes 3-year limited warranty with FREE lifetime technical support from dedicated experts

224cc dual-fuel engine runs on both gasoline (6800 surge watts, 5100 rated watts) and propane (6000 surge watts, 4500 rated watts)

Bonded-neutral 240V configuration provides low-power Level 2 charging for battery and hybrid electric vehicles

The WEN Watchdog CO Shutdown Sensor helps protect both you and your family by automatically turning off the generator if dangerous levels of carbon monoxide are detected

Fuel shutoff maximizes the generator’s lifespan by using up the remaining fuel in the carburetor before shutting down

Includes fuel shut-off to help limit maintenance, onboard wheels, a telescoping pull handle, one L14-30R 120V/240V receptacle, two three-prong 120V receptacles, one TT-30R RV receptacle, one 12V DC receptacle, two 5V USB ports, a voltage selector switch, a tool-free LPG quick-connector, a six-foot-long LPG regulator hose, and a three-year warranty

Portable Power Solution: The iQ5200 8945 inverter generator is your go-to portable power source for outdoor adventures, from camping trips to tailgating events, ensuring stable power without disturbing your surroundings

Convenient Electric Start: Say goodbye to manual cranking. The electric start feature, with the included battery, ensures easy and hassle-free operation, so you're always prepared for unexpected outages

Quiet Operation: The fully enclosed case minimizes noise levels, making this generator ideal for home backup, camping, and outdoor use without loud disruptions

Fuel Switching Convenience: Whether you are using gasoline or an LP gas fuel source, using the fuel source selector allows the unit to switch seamlessly between fuel types to prevent unit shutdown. COsense Technology stops, alerts, saves, powerful

Smart and Reliable: Equipped with LED indicators for low oil, overloaded, and ready-to-use. Featuring two USB ports for device charging, and parallel-ready capability for doubling your power output, this generator is a versatile and dependable choice

With 13,000 watts of power, the XP13000EH Dual Fuel generator will keep your whole home running during a storm or power outage

DuroMax is the industry leader in Dual Fuel portable generator technology, with a full assortment ranging from digital inverters to generators that can power your entire home

At the core of all our products resides a robust DuroMax engine. Designed for Power. Designed to Last

The XP13000EH comes with a push button start, a front facing interface that allows you to change your fuel type in seconds, and a wide variety of outlets (including a transfer switch-ready 50 amp outlet)

Constructed with a heavy-duty all metal frame and power panel - No plastic parts

Built to withstand severe weather and years of heavy wear-and-tear

Power wherever and whenever you need it - No-flat tires roll easily over any terrain

100% Copper Windings - Unlike aluminum, copper is a superior heat conductor that extends the life of your generator

Stay powered with our EH line of portable generators

DuroMax portable generators are designed to be mobile and versatile, with the ability to provide power whenever and wherever you need it. Unlike traditional standby generators that are large, expensive, yet only serve one purpose, DuroMax generators will power you whether you’re at home, on an RV trip, or at the jobsite

Powerful Portable Performance: With Generac’s PowerRush Advanced Technology, the 7715 GP8000E generator delivers 40% more starting capacity, handling heavy electrical loads with ease. Ideal for emergency power, recreation, and home use

Easy Electric Start - Forget manual cranking. The convenient electric start feature, powered by an included battery, ensures easy operation. Ideal for emergency power needs, this generator is always ready for any outage

Extended Runtime: The GP8000E boasts a long-lasting OHV engine and a large-capacity steel fuel tank with a built-in fuel gauge. Enjoy up to 11 hours of runtime at 50% load, ensuring you have power when you need it most

Smart and Reliable: Integrated COsense technology provides powerful protection against hazardous carbon monoxide. It can detect and alert you to ensure your safety during operation

Maintenance Made Easy: Keep your generator in top shape with the hour meter that tracks maintenance intervals. Plus, the low-oil level shutdown feature automatically safeguards the engine from damage, ensuring a long and reliable lifespan

With 13,000 watts of power, the XP13000HXT Tri Fuel generator will keep your whole home running during a storm or power outage, while protecting your family from harmful fumes with CO Alert

Run your generator on gasoline, propane, or natural gas. With Tri Fuel, we offer the ultimate freedom and flexibility of fuel choice

Powerful 500cc OHV Engine: At the heart of this generator resides a robust DuroMax engine designed to provide you with the most power.

The XP13000HXT comes with a push button start, a front facing interface that allows you to change your fuel type in seconds, and a wide variety of outlets including a transfer switch-ready 50 amp outlet

Push Button Start and Remote Start: Turn on your generator with a simple push of a button, or use the remote to conveniently start your generator from a distance.

30% Tax Credit Could be Applied. You could apply for the Residential Clean Energy Credit for qualified solar electric property costs. Please check with your utility to verify eligibility & requirements for Residential Clean Energy Credit programs.

Large Capacity. Featuring a 3600Wh LFP battery capacity, DELTA Pro provides strong electrical storage for home battery backup power supply and outdoor camping. Applied with DELTA Pro Extra Batteries or Smart Generators, the electric generator can expand its capacity from 3.6kWh to 25kWh.

Maximum Output Flexibility. A single DELTA Pro unit packs a 3600W AC output, which can be expanded up to 4500W with X-Boost technology. You can even pair two units together to achieve 7200W. Power 99.99% heavy-duty devices at home, outdoors, or at work. With 15 output methods: 2*USB-A, 2*USB-A Fast Charge, 2*USB-C (100W), 5*AC Outlets, 2*DC Outlets, 1 car power output and 1 Anderson port, the solar power station grants the ability to power multiple devices at the same time.

X-Stream Fast Charging. Fully recharge the lifepo4 battery in 1.8 hrs with 240V outlets(3000W), 2.7 hrs with 1800W wall outlets or solar charged in 2.8 hours with 4*400W solar panels thanks to the industry-leading solar conversion efficiency of up to 23%. EcoFlow’s X-Stream charging technology isn't just fast, it's safe too with the battery management system.

5 Ways to Charge. Pick from EV station charging, solar, wall outlets, using the smart outdoor generator or via a car outlet. Faster than any other 3000 watt solar generator. Keep going for miles when your electric vehicle runs out of battery. Either at home or on the go, DELTA Pro will have you back on the road in no time.

Smart App Control. Use the EcoFlow app via Wi-Fi or Bluetooth. Monitor the status of all your devices and power sources that are charging your portable power station. Check on charge level, temperature and charge/discharge times. Control from afar and customize all settings, such as battery life, input/output, and more. Break down your energy habits or customize your energy usage to fit your needs.

At less than 49 pounds, this inverter is one of the lightest 4000-watt inverters in the industry

64 dBA from 23 feet is perfect for camping, tailgating or to backup a few home essentials, with 4000 starting watts, 3000 running watts and up to 10 hours run time, plus features CO Shield carbon monoxide auto shutoff system

The optional parallel kit enables this inverter to connect with another 4000-watt Champion inverter to double your output power

Includes a 120V 25A TT-30R outlet, a 120V 20 A household duplex outlet (5-20R) with clean electricity (less than 3% THD), plus a 12V automotive-style outlet, and Parallel outlets

Includes 3-year limited warranty with FREE lifetime technical support from dedicated experts

Start and stop with ease from up to 80 feet away with the included wireless remote key fob, plus, features CO Shield carbon monoxide auto shutoff system

At 11,000 starting watts and 9000 running watts, enjoy up to 15 hours of run time on a full tank of gasoline with a noise level of 64 dBA from 23 feet

Trust the reliable 459cc Champion engine with its battery-included electric start feature and built-in Cold Start Technology for easy starts in cold weather

Two 120V 20A GFCI household duplex outlets, a 120/240V 30A locking outlet, a 120/240V 37.5A outlet, and a 12V automotive-style outlet

Includes 3-year limited warranty with FREE lifetime technical support from dedicated experts