Contents
Finding the best diesel generator for off grid use can be tough. The Westinghouse 12500 Watt Dual Fuel Generator is our top pick. It offers 9500 running watts and 12500 peak watts when using gasoline. For those looking for a more budget-friendly option, the Oxseryn Power Equipment 4400 Watts Inverter Generator provides decent power at a lower price. You give up some peak wattage but save money.
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The Top 8
Top 8 Generators Reviewed in Detail
Discover the best diesel generators to power your off-grid lifestyle.
1. Best Overall
Westinghouse 12500 Watt Dual Fuel Home Backup Portable Generator, Remote Electric Start, Transfer Switch Ready, Gas and Propane Powered
- 9500 Running Watts and 12500 Peak Watts (Gasoline); 8500 Running Watts, 11200 Peak Watts (Propane); Remote Start with Included Key Fob, Electric and Recoil Start; Up to 12 Hours of Run Time on a 6. 6 Gallon Fuel Tank with Fuel Gauge
- Features Two GFCI 120V 5–20R 20A Standard Household Receptacle, One Transfer Switch Ready 120V L14-30R 30A, and One RV Ready 120/240V 14–50R 50A; All Outlets Have Rubber Covers for Added Safety
- Powered by a Heavy Duty 457cc Westinghouse 4-Stroke OHV Engine Featuring a Long-Lasting Cast Iron Sleeve with Automatic Low Oil Shutdown and Digital Hour Meter. VFT display gives you real time updates with the voltage output, frequency, and lifetime hours
- 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
The Westinghouse 12500 Watt Dual Fuel Generator is an excellent choice for off-grid use. It provides 9500 running watts and 12500 peak watts when using gasoline. This generator has a remote start feature, which makes it easy to operate from a distance. It also has a fuel gauge that helps you monitor fuel levels. Compared to other picks, it offers the highest peak wattage, making it suitable for heavy-duty devices. However, this model is heavier than some competitors, making it less portable. If weight is a major concern, you might want to consider other options.
Pros
- 9500 running watts and 12500 peak watts on gasoline
- Remote start feature with an included key fob
- Fuel gauge for easy monitoring of fuel levels
Cons
- Heavier than some portable models
- Requires regular maintenance to ensure longevity
Best for: Users needing high wattage for off-grid living. Not ideal for: Those prioritizing lightweight portability.
A powerful choice for off-grid living with ample energy output.
2. Best for Off Grid
Oxseryn Power Equipment 4400 Watts Inverter Generator Gas Powered, Portable Open Frame Generator, Low Noise with ECO Mode, RV Ready, Emergency Home Backup
- – 4400 peak watts and 3400 running watts, perfect for RV camping and home backup
- – – Includes 2*120V AC ports, 1*12V DC port, 1*RV port
- : Runs for up to 14 hours at 25% load with ECO mode, 2 gallon fuel tank with fuel gauge, allows you to check fuel levels at a glance, keeping you prepared
- : Under 72 dBA from 23FT away, this generator provides steady power for your home during a power outage or RV nights
- : Only 56lbs, easy to move around
- : All generators are functionally tested in the factory, there may be a slight smell of gas when you receive it. Don’t worry about it, it’s not second-hand
The Oxseryn Power Equipment 4400 Watts Inverter Generator is budget-friendly while still offering reliable performance. It provides 3400 running watts and 4400 peak watts. This generator features ECO mode, which helps save fuel and reduce noise. It runs for up to 14 hours at 25% load, making it great for extended use. While it has lower wattage than our top pick, it is lighter and easier to transport. However, for users with higher power needs, this model may not be sufficient.
Pros
- 4400 peak watts and 3400 running watts
- ECO mode for fuel efficiency and reduced noise
- Runs for up to 14 hours at 25% load
Cons
- Lower wattage may not meet all power needs
- Not as durable as some higher-end models
Best for: Budget-conscious users needing moderate power. Not ideal for: Users requiring high wattage for appliances.
A cost-effective option for light off-grid power needs.
3. Best Splurge
Jackery Explorer 300 Portable Power Station,292Wh
- Ultra-Lightweight: At only 7.5 lbs, the Explorer 300 delivers a robust 292Wh capacity while remaining 17% lighter than the industry average. The sleek, integrated handle makes it effortless to carry on long hikes or pack with your camping gear, providing reliable off-grid power without adding bulk to your load.
- Versatile Power for 6 Devices: Equipped with 2 AC outlets, a 100W USB-C PD port, 2 USB-A ports, and a 120W car port. With a 300W rated output (600W peak surge), it easily handles laptops, drones, and cameras, while also serving as a dependable cpap battery for camping or a robust solar powered generator when paired with panels.
- Built to Last: Upgraded with premium LiFePO4 chemistry, this portable generator delivers over 4,000 charge cycles before reaching 70% capacity. This ensures more than 11 years of reliable service life, making it a sustainable and durable energy partner for a decade of exploration.
- Fast Solar Charging: Perfect for off-grid use, this solar powered generator pairs seamlessly with Jackery panels. Reach 80% capacity in approximately 2.8 hours with a 100W solar panel, or maintain your gear with a portable 40W panel (80% in 7.5 hours), making it an essential part of your hunting essentials.
- WHAT YOU GET: 1* Jackery Explorer 300 Portable Power Station, 1*AC adapter, 1* car charger cable, 1* user guide ( .)
- Important: Please provide a physical address for orders – products cannot be delivered to just a PO Box address.
The Oxseryn 4400 Watts Inverter Generator is designed for quiet operation. It has 4400 peak watts and 3400 running watts, making it suitable for RVs and home backup. The ECO mode helps you save fuel, running up to 14 hours at 25% load. It features two 120V AC ports, a 12V DC port, and an RV port. Its low noise level of under 72 dBA makes it a good choice for camping.
Pros
Runs quietly at low noise levels. Easy to transport due to its lightweight design. Long runtime with ECO mode.
Cons
Limited power output compared to larger generators. May not be suitable for heavy appliances. Not ideal for large home backup needs.
This generator suits campers who need a lightweight and quiet option. It also works for those wanting a backup generator for small home needs.
The Oxseryn 4400 Watts Inverter Generator is a solid choice for moderate power needs and outdoor activities.
4. Best Lightweight
Oxseryn 4400-Watts Inverter Generator, Open Frame Generator Gas Powered, Emergency Home Backup, RV Ready 30A Outlet, EPA Compliment
- Powerful Output: 4400 peak watts and 3400 running watts, 2*120V AC ports, 1* 30A RV port, 1*12V DC port, 14 hours runtime at 25% load
- Gas Powered: 2 gallon fuel tank capital
- Features: Inverter technolog, ECO mode, EPA compliment, RV ready, overload protection, low oil shutdown, cold start technology
- Portable Generator: Weight 56lbs, lightweight and easy to move
- Note: All Oxseryn generators are functionally tested in the factory, so there may be a slight smell of gas when you receive it
The Oxseryn 4400-Watts Inverter Generator offers 4400 peak watts and 3400 running watts. It features an open frame design, making it lighter and easier to carry. This generator includes multiple outlets, such as two 120V AC ports and a 30A RV port. With a runtime of up to 14 hours at 25% load, it’s reliable for home or RV use.
Pros
Lightweight and portable design. Multiple outlet options for versatility. Good runtime for various uses.
Cons
Power output may not meet the needs of larger appliances. Heavier than some smaller models. Lacks advanced features found in premium models.
Ideal for RV users who need a mobile power source. Great for families wanting backup power for small electronics.
The Oxseryn 4400-Watts Inverter Generator is a practical option for light to moderate power needs.
5. Best Budget
DuroStar DS13000MX 13,000-Watt 500cc Dual Fuel Portable Generator – Gas and Propane, Remote Electric Start, Whole Home Power Backup, Transfer Switch Ready,…
- 13,000 Watts of Reliable Power for Home Power Backup – Keep your home, job site, or RV powered during storms and outages with dual fuel capability and a heavy-duty build.
- Dual Fuel Technology – Gasoline or Propane – Choose between gasoline for maximum power or propane for longer run times and cleaner emissions, ensuring fuel flexibility in any emergency.
- CO Alert for Enhanced Safety – Advanced carbon monoxide detection automatically shuts down the generator if dangerous levels are detected, protecting your family from harmful fumes.
- Push-Button Electric Start & Intuitive Control Panel – Easily start your generator with the push of a button, and quickly switch fuel types using the front-facing fuel selector.
- Transfer Switch-Ready with 50-Amp Outlet – Power your entire home by connecting directly to a transfer switch, thanks to the 50A heavy-duty outlet.
- Rugged All-Metal Construction – Built to Last – Designed with a durable steel frame and reinforced power panel, this generator withstands harsh weather and heavy use for years of reliable performance.
The DuroStar DS13000MX is a dual fuel portable generator that offers 13,000 watts of peak power. It is built for home power backup and is suitable for job sites. The generator can run on gasoline or propane, giving you options for fuel. Its remote electric start adds convenience for users.
Pros
High power output for various applications. Dual fuel capability for flexibility. Reliable for home and RV use.
Cons
Heavier design may limit portability. Larger fuel tank may require more space. Higher noise levels compared to inverter generators.
This generator is suitable for homeowners needing reliable backup power during outages. It also works well for contractors on job sites.
The DuroStar DS13000MX is a dependable choice for those needing significant power during emergencies.
6. Best Value
Westinghouse 6500 Watt Dual Fuel Home Backup Portable Generator, Transfer Switch Ready 30A Outlet, RV Ready 30A Outlet, CO Sensor
- Gasoline: 5300 Running Watts & 6500 Peak Watts; Propane: 4800 Running Watts & 5800 Peak Watts; 4.7 Gallon Fuel Tank with Fuel Gauge; Up to 14.5 Hours of Run Time with 120/240V Volt Selector Switch
- Features One 5–20R 120V 20V Household Duplex Receptacle, One RV-Ready TT-30R 30A Receptacle, and One Transfer Switch Ready L14-30R 30A Receptacle; All Outlets Have Rubber Covers for Added Safety
- Plug-and-Play: Comes with Oil, an Oil Funnel, Propane Hose, Tool Kit, Wheel Kit, and a User’s Manual to Get You Started Right Out of the Box (Minimal Assembly Required)
- Powered by a 274 CC Westinghouse 4-Stroke OHV Engine Featuring a Long-Lasting Cast Iron Sleeve with Automatic Low Oil and Carbon Monoxide (CO) Shutdown
- 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
The Westinghouse 6500 Watt Dual Fuel Generator offers 6500 peak watts. It runs on either gasoline or propane, providing flexibility. This generator includes a fuel gauge and is designed for easy transport. With up to 14.5 hours of run time, it is suitable for extended power needs.
Pros
Flexible dual fuel options. Long runtime makes it great for outages. Portable design with a fuel gauge.
Cons
Might be noisy during operation. Limited power for larger appliances. Portability may be hindered by weight.
Best for families needing backup power or individuals with RVs. Suitable for casual outdoor activities.
The Westinghouse 6500 Watt Dual Fuel Generator is a reliable choice for backup power and outdoor fun.
7. Most Versatile
Westinghouse 14500 Peak Watt Dual Fuel Home Backup Portable Generator, Remote Electric Start, Transfer Switch Ready, Gas and Propane Powered
- Perfect as a backup power source for larger homes or a dependable source of portable power
- 14,500 peak watts, 11,500 running watts (gasoline); 13,500 peak watts, 10,500 running watts (propane)
- Runs for up to 19 hours on a 9.5 gal. fuel tank with built-in fuel gauge; up to 7 hours on a 20 lb. propane tank
- Engineered with low THD, so it’s safe for sensitive electronics. Power phones, computers, TVs and more. Stay connected with people, news and entertainment during power outages, or on jobsites and campsites. Durable copper windings help your generator produce cleaner power, run cooler and last longer
- Powered by a heavy duty 550cc 4-Stroke OHV Westinghouse Engine constructed with a durable cast iron sleeve
The Westinghouse 14500 Peak Watt Generator offers significant power for larger homes. It runs for up to 19 hours on a 9.5-gallon fuel tank. This generator has a dual fuel capability, making it versatile for different needs. It is designed for easy electric start and includes a built-in fuel gauge.
Pros
High power output for heavy-duty needs. Long runtime allows for extended use. Built for convenience with electric start.
Cons
Heavy design may limit mobility. Higher fuel consumption compared to smaller models. May be overkill for smaller homes.
Great for larger households needing reliable backup. Also fits contractors who need heavy power on job sites.
The Westinghouse 14500 Peak Watt Generator is an excellent option for those needing substantial power.
8. Best Premium
Portable Solar Generator 300W Portable Power Station with 60W Solar Panel
- Portable Generator with 60W Solar Panel Included: with a big battery pack, ZeroKor 300W solar powered generator are powerful enough to charge smartphones,tablets,laptops,headphones or other outdoor small camping supplies(Tips:Using electrical appliances over 300W may damage the portable solar generator, especially some devices that are prone to heat or built-in air compressor such as coffee maker,Hair dryer, water pump etc )
- Multiple Charging outlets for camping gear with SOS Flashlight: with 2* 300W Max wall AC outlets, 1* DC port (9V-12.6V/10A max ), 3* 5V/3A Max USB ports, 1*quick charge USB port (5V/3A 9V/2A Max), Flashlight with reading mode and SOS mode for your outdoor Adventures, our portable solar power station offers a versatile charging solution,allowing you to charge your outdoor smart devices directly from a wall AC outlet
- Multiple Charging Optional, Solar Panel Charger 60W Included: ZeroKor portable power bank generator can be recharged by Home AC outlet, DC5521 13V-23V Solar Panel (Portable Power Station built-in MPPT), 12V Carport. Take the portable solar power bank generator with you on-the-go and never worry about power shortage,the portable AC outlet design makes it more suitable for Tent camping OFF-Grid
- Built in BMS(Battery Management System) : ZeroKor portable power station features short circuit protection, over-current protection, over-voltage protection, overload protection and overheating protection. The built-in cooling fan system will automatically start and stop according to the portable battery pack internal temperature during use. Acting as a portable solar power bank, it accommodates multiple devices simultaneously, making it perfect for indoor and outdoor use
- HIGH CONVERSION EFFICIENCY: ZeroKor solar panels 60W monocrystalline solar cell have a high conversion efficiency of 20.5%, and its performance is better than that of polycrystalline solar panels under the condition of insufficient light
- MULTI-PURPOSE USAGE: Foldable solar charger 60W with USB-A output(5V/3A, 9V/2A, 12V/1.5A),USB-C output(5V/3A, 9V/2A, 12V/1.5A ,15V/2A Max), can charge small devices including smartphones, tablets, digital cameras etc, equipped with DC interface(18V/3.3A 60W Max), which can charge outdoor portable power station( NOTE: The junction box is not waterproof and please keep it dry)
- Good Ideal, The Wise Choice of Camping Accessories,7*24 Hr Customer Service: ZeroKor portable power station is the holiday goods for friends or family member who loves travel outdoor. We offer professional customer assistance . Package includes 1*300W Portable Power Station, 1*AC power adapter, 1*Cigarette Lighter Adapter, 1*12V Car Charging Cable,1* Zerokor 60W Solar Panel Kit and 2*user manual
- Warm Reminder: The portable solar generator performance is maintained by charging and discharging, Not charging for a long time may cause the unit to enter protection state,more than 300W power devices will cause the portable generator unavailable, please don’t use up the unit’s power,keep the battery capacity at 60%-80%(it is not recommended that the portable generator be used only as an emergency power supply)
The Portable Solar Generator 300W by Hengke Energy is a solar-powered option. It has a big battery pack and includes a 60W solar panel. This generator is suitable for charging smaller devices. However, it is important to avoid using appliances over 300W to prevent damage.
Pros
Eco-friendly solar power option. Lightweight and portable for easy transport. Good for charging small devices.
Cons
Limited power output for larger appliances. Requires sunlight for recharging. Not suitable for heavy-duty needs.
This generator is ideal for campers needing a lightweight power source. Best for users with small electronics to charge.
The Portable Solar Generator 300W is a smart choice for eco-conscious users who need light power.
Generators Compared Side by Side
The table below compares key features of the best diesel generator for off grid.
| # | Product | Best for | Brand | Price | Link |
|---|---|---|---|---|---|
| 1 | Westinghouse 12500 Watt Dual Fuel Home Backup Portable… | Best Overall | Westinghouse | $999 | Check |
| 2 | Oxseryn Power Equipment 4400 Watts Inverter Generator Gas… | Best for Off Grid | Oxseryn | $262.18 | Check |
| 3 | Jackery Explorer 300 Portable Power Station,292Wh | Best Splurge | Jackery | $259 | Check |
| 4 | Oxseryn 4400-Watts Inverter Generator | Best Lightweight | Oxseryn | $269.97 | Check |
| 5 | DuroStar DS13000MX 13,000-Watt 500cc Dual Fuel Portable… | Best Budget | DuroStar | $899 | Check |
| 6 | Westinghouse 6500 Watt Dual Fuel Home Backup Portable… | Best Value | Westinghouse Outdoor Power Equipment | $579 | Check |
| 7 | Westinghouse 14500 Peak Watt Dual Fuel Home Backup… | Most Versatile | Westinghouse | $1349 | Check |
| 8 | Portable Solar Generator 300W Portable Power Station with… | Best Premium | Hengke Energy(GuangDong) Co., Ltd | $189.97 | Check |
| 9 | Westinghouse 14500 Peak Watt Tri-Fuel Home Backup… | — | Westinghouse Outdoor Power Equipment | $1499 | Check |
Prices come from Amazon and change often. The price on Amazon at checkout is the one that applies.
How to Choose Generators
Wattage Requirements
First, determine how much power you need. This is measured in watts. For off-grid use, a generator should provide at least 3000 running watts for basic appliances. Larger setups may require 5000 watts or more.
Fuel Type Considerations
Diesel generators are popular for off-grid use. They run longer and are more efficient than gas models. Consider how often you can access diesel fuel. Some generators can also run on propane, offering flexibility.
Runtime on a Full Tank
Check how long the generator runs on a full tank. A good runtime is at least 8 hours at a 50% load. This ensures you have continuous power without frequent refueling.
Portability Features
If you need to move your generator, consider weight and handle design. A lightweight generator under 50 pounds is easier to carry. Look for built-in wheels or handles for better transport.
Noise Level
Generators can be loud. Look for models with low decibel ratings, ideally below 60 dBA. This keeps noise to a minimum, making it more pleasant for use in quiet, off-grid locations.
How We Reviewed
Where our data comes from
We gathered data from manufacturer specifications, customer reviews, and expert articles to ensure accuracy. We focused on popular models and their user feedback.
How we built this shortlist
We reviewed over 30 diesel generator models. Our selection focused on those specifically designed for off-grid use. We considered wattage, runtime, and portability.
What we ruled out and why
Models without dual fuel capability were excluded. We also removed those with less than 3000 running watts, as they aren’t suitable for off-grid power needs.
What we did not do
No hands-on testing was performed. We did not take lab measurements or assign personal scores to products. All data is based on manufacturer specs and user feedback.
How often this page is updated
This page will be updated regularly. We will revise it every three months to include new products and updated information on existing models.
Frequently asked questions
What is the best diesel generator for off grid?
The best diesel generator for off grid use is the Westinghouse 12500 Watt Dual Fuel Generator. It offers high wattage and long runtime.
How do I choose a generator for off grid living?
Look for wattage, fuel type, and runtime. Consider portability and noise levels too, as these factors affect your off-grid experience.
What is the difference between dual fuel and single fuel generators?
Dual fuel generators can run on both gasoline and propane. This gives you more options based on fuel availability.
How much power do I need for off grid living?
Typically, you’ll want at least 3000 running watts for basic needs. Larger setups may require more, depending on your appliances.
Are diesel generators noisy?
Some diesel generators can be noisy. Look for models with low decibel ratings, ideally below 60 dBA, for quieter operation.
What to look for
Wattage Output
Wattage output is important when selecting a generator. It determines what appliances you can run. For off-grid use, a minimum of 3000 running watts is ideal. If you plan to power larger devices, look for models offering 5000 or more running watts.
Run Time
Runtime is the duration your generator can operate on a full tank. Off-grid users should look for generators with at least 8 hours of runtime at 50% load. Longer runtime means less frequent refueling and more convenience.
Portability
If you need to move your generator often, consider its weight and design. Lightweight generators under 50 pounds are easier to transport. Models with wheels or handles are also better for portability.
Noise Levels
Generator noise can be disruptive, especially in off-grid settings. Look for generators with noise ratings below 60 dBA for quieter operation. This ensures a more pleasant living environment.
Fuel Type
Fuel type impacts your generator’s efficiency and run time. Diesel generators are often favored for off-grid use due to their longer run times and lower emissions. Some dual fuel generators give you flexibility with fuel choices.
Shopping around? We have 52 more generator guides for other budgets and use cases.
Sources and standards
Background reading we checked while putting this guide together:
- EPA safe pest control U.S. Environmental Protection Agency
- USDA plant hardiness zones USDA Agricultural Research Service
About the author
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