Whole-home backup generators range from permanently installed standby systems to portable units that can power selected circuits, plus battery-based solar systems. My best overall pick is the Generac 22kW Whole-Home Standby Generator with Cellular Monitoring for buyers who want substantial automatic backup capacity and remote status checks. The Westinghouse WGen20000TFc stands out for high-output portable, tri-fuel flexibility, while the Jackery Solar Generator 5000 Plus suits households prioritizing quiet, battery-based backup. The main tradeoff is convenience versus installation and fuel logistics: standby systems can start automatically but need professional setup, while portable models cost less to deploy but require manual connection and safe outdoor operation. Read on for the full breakdown and help matching a generator to your home’s loads and outage plans.
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Key Takeaways
- Standby models lead on automatic whole-home coverage: the Generac 22kW and 26kW options offer much more capacity for large household loads than the portable generators, but they require permanent installation.
- The 22kW Generac lineup is not interchangeable: some listed packages include a 200-amp transfer switch, while others describe cellular monitoring without specifying that same package, so check what is included before comparing.
- Portable output varies widely: the WGen20000TFc and WGen20000c occupy the high-output end, while the WGen9500DF and smaller tri-fuel options call for more careful load prioritization.
- Fuel choice changes outage planning: tri-fuel models can use gasoline, propane, or natural gas, dual-fuel models offer two choices, and standby units are a different, fixed-installation solution.
- Battery backup serves a different purpose: Jackery’s solar-generator system avoids engine exhaust and routine fuel storage, but its capacity and replenishment depend on battery configuration, connected loads, and available charging.
| Jackery Solar Generator 5000 Plus with Two 200W Solar Panels |  | Best Solar-Ready Whole-Home Backup | Battery capacity: 5,040Wh | Surge output: 14,400W | Voltage: 120V and 240V | VIEW LATEST PRICE | See Our Full Breakdown |
| Generac 10 kW Whole-Home Standby Generator with Transfer Switch and Cellular Connectivity |  | Best for Smaller Homes Seeking Automatic Backup | Fuel types: Natural gas or propane | Voltage: 120V | Transfer switch: Automatic 16-circuit | VIEW LATEST PRICE | See Our Full Breakdown |
| Generac 22kW Whole-Home Standby Generator with Cellular Monitoring |  | Best High-Capacity Automatic Standby | Fuel types: Natural gas or propane | Voltage: 240V | Connectivity: Built-in cellular; Mobile Link app features require a premium subscription | VIEW LATEST PRICE | See Our Full Breakdown |
| Westinghouse WGen20000TFc Tri-Fuel Portable Generator, 28,000 Peak Watts |  | Best Portable High-Output Backup | Running wattage: 20,000W | Peak wattage: 28,000W | Fuel types: Gasoline, propane, and natural gas | VIEW LATEST PRICE | See Our Full Breakdown |
| Westinghouse WGen20000c 28,000-Watt Portable Generator with Electric Start |  | Best Gasoline-Only High-Output Pick | Running wattage: 20,000W | Peak wattage: 28,000W | Fuel type: Gasoline | VIEW LATEST PRICE | See Our Full Breakdown |
| Generac GP9500E Tri-Fuel Portable Generator, 12,500 Starting Watts, Electric Start |  | Best Tri-Fuel Flexibility for a Portable Backup | Model: 8063 | Fuel types: Gasoline, liquid propane, natural gas | Running watts: 9,500 W | VIEW LATEST PRICE | See Our Full Breakdown |
| Westinghouse WGen10500TFc Tri-Fuel Portable Generator with Remote Electric Start and CO Sensor |  | Best Portable Pick for Longer Runs | Peak wattage: 13,500 W | Running wattage: 10,500 W | Fuel types: Gasoline, propane, natural gas | VIEW LATEST PRICE | See Our Full Breakdown |
| Westinghouse WGen9500DF Dual Fuel Portable Generator |  | Best for Straightforward Gasoline-or-Propane Backup | Fuel types: Gasoline or propane | Running watts: 9,500 W on gasoline; 8,500 W on propane | Peak watts: 12,500 W on gasoline; 11,200 W on propane | VIEW LATEST PRICE | See Our Full Breakdown |
| Westinghouse WGen11500TFc Tri-Fuel Portable Generator with CO Sensor |  | Best High-Output Portable Backup | Peak wattage: 14,500 W | Running wattage: 11,500 W | Fuel types: Gasoline, propane, natural gas | VIEW LATEST PRICE | See Our Full Breakdown |
| Generac 26kW Whole Home Generator with Cellular Capability | | Best for Automatic Whole-Home Coverage | Output: 26kW (26,000 W) | Fuel types: Natural gas, propane | Voltage: 240 V | VIEW LATEST PRICE | See Our Full Breakdown |
| Generac 22 kW Whole Home Standby Generator with 200 Amp Transfer Switch and Cellular Connectivity |  | Best for Higher-Demand Whole-Home Backup | Power output: 22 kW (22,000 watts) | Fuel: Natural gas or liquid propane | Voltage and frequency: 240 volts, 60 Hz | VIEW LATEST PRICE | See Our Full Breakdown |
| DuroMax XP13000EH 13,000-Watt Dual-Fuel Portable Generator |  | Best for Portable Backup Flexibility | Starting wattage: 13,000 watts | Running wattage: 10,500 watts | Fuel: Gasoline or propane | VIEW LATEST PRICE | See Our Full Breakdown |
| Westinghouse WGen10500DFc Dual-Fuel Portable Generator with Remote Electric Start and CO Sensor |  | Best Portable Pick for Longer Runtime | Peak wattage: 13,500 watts | Running wattage: 10,500 watts | Fuel: Gasoline or propane | VIEW LATEST PRICE | See Our Full Breakdown |
| Generac 14 kW Whole-Home Standby Generator with 200 Amp Transfer Switch and Cellular Connectivity | | Best for Essential Whole-Home Standby | Power output: 14 kW (14,000 watts) | Fuel: Natural gas or LP | Voltage and frequency: 240 volts, 60 Hz | VIEW LATEST PRICE | See Our Full Breakdown |
| whole home backup generator | Engine | Weight | Fuel types | Warranty |
|---|---|---|---|---|
| Jackery Solar Generator 5000 P | — | 134.5 lbs | — | — |
| Generac 10 kW Whole-Home Stand | — | 384 lbs | Natural gas or propane | 5-year limited |
| Generac 22kW Whole-Home Standb | Internal combustion | 451 lbs | Natural gas or propane | 5-year limited |
| Westinghouse WGen20000TFc Tri- | 999cc 4-stroke OHV V-Twin | — | Gasoline, propane, and natural gas | 3-year limited residential |
| Westinghouse WGen20000c 28,000 | 999cc 4-stroke V-twin OHV | — | — | — |
| Generac GP9500E Tri-Fuel Porta | 500cc Generac OHV | 219 lbs | Gasoline, liquid propane, natural gas | — |
| Westinghouse WGen10500TFc Tri- | 500cc 4-stroke OHV | — | Gasoline, propane, natural gas | 3-year limited residential warranty |
| Westinghouse WGen9500DF Dual F | 457cc 4-stroke OHV | — | Gasoline or propane | 3-year limited warranty |
| Westinghouse WGen11500TFc Tri- | 550cc 4-stroke OHV | — | Gasoline, propane, natural gas | — |
| Generac 26kW Whole Home Genera | — | 524 lbs | Natural gas, propane | 5-year limited warranty |
| Generac 22 kW Whole Home Stand | — | 451 lbs | — | 5-year limited |
| DuroMax XP13000EH 13,000-Watt | 500cc OHV, 4-stroke | 234 lbs | — | — |
| Westinghouse WGen10500DFc Dual | 500cc 4-stroke OHV | — | — | 3-year limited residential |
| Generac 14 kW Whole-Home Stand | Internal combustion | 391 lbs | — | — |
More Details on Our Top Picks
Jackery Solar Generator 5000 Plus with Two 200W Solar Panels
Among these options, the Jackery Solar Generator 5000 Plus is the clearest fit for buyers who want backup power without a fuel-burning engine. Its 5,040Wh LiFePO₄ battery and 7,200W rated output can support substantial household loads, while 120V and 240V support broadens what it can serve. Unlike the Generac 10 kW standby generator, it does not start automatically when grid power drops, so someone must manage the system and available charge. Its advantage is the ability to add battery capacity up to 60kWh and recharge from solar, with the bundle providing two 200W panels; the listed maximum solar input is much higher than the included panel capacity. At 134.5 pounds, it is not an easy unit to move, and its practical whole-home coverage depends on load planning and expansion.
Pros:- 7,200W rated output with 120V and 240V support
- Expandable battery capacity up to 60kWh
- Accepts up to 4,000W of solar input
- LiFePO₄ battery chemistry
Cons:- Does not provide the automatic outage startup offered by Generac standby models
- The 134.5-pound unit is difficult to move
- The included two 200W panels provide only a portion of its maximum solar input
Best for: Homeowners seeking quiet, fuel-free backup who can manage loads and want the option to expand battery storage and recharge with solar.
Not ideal for: Buyers who need automatic outage response or want a ready-to-run system for sustained whole-home loads without planning battery capacity.
- Battery capacity:5,040Wh
- Surge output:14,400W
- Voltage:120V and 240V
- Expandable capacity:Up to 60kWh
- Maximum solar input:4,000W
- Battery chemistry:LiFePO₄
- Included solar panels:Two 200W panels
- Weight:134.5 lbs
Our verdict“Choose the Jackery if you want expandable, solar-rechargeable backup and can trade automatic standby operation for battery-based flexibility.”
Generac 10 kW Whole-Home Standby Generator with Transfer Switch and Cellular Connectivity
The Generac 10 kW standby generator prioritizes automatic response over the higher output of the 22 kW Generac model or the Westinghouse WGen20000TFc. When utility power fails, its automatic 16-circuit transfer switch moves selected household circuits to generator power, making it a more hands-off choice than a portable unit that needs to be started and connected. It runs on natural gas or propane, which avoids relying solely on stored gasoline, though coverage depends on the home’s loads and circuit setup. Cellular monitoring adds remote visibility, but Mobile Link app features require a premium subscription. This is the more restrained standby option in the lineup: a sensible match for essential circuits, but buyers seeking broad simultaneous coverage should compare its 10 kW output with the 22 kW model. Installation and a suitable fuel supply are also part of the ownership picture.
Pros:- Automatically supplies power when utility service fails
- Automatic 16-circuit transfer switch is included
- Runs on natural gas or propane
- Cellular monitoring and remote control are available
Cons:- 10 kW output offers less capacity than the Generac 22 kW standby model
- Mobile Link app features require a premium subscription
- At 384 pounds, it requires permanent installation rather than casual repositioning
Best for: Owners of smaller homes who want automatic backup for selected circuits and have access to natural gas or propane.
Not ideal for: Households that expect high-demand appliances to run together or want portable, self-managed backup without standby installation.
- Fuel types:Natural gas or propane
- Voltage:120V
- Transfer switch:Automatic 16-circuit
- Connectivity:Built-in cellular; Mobile Link app features require a premium subscription
- Weight:384 lbs
- Dimensions:47.3 × 25.6 × 30.7 in
- Warranty:5-year limited
Our verdict“Pick this Generac for automatic, selected-circuit backup in a smaller home, but choose a higher-output standby unit for heavier household loads.”
Generac 22kW Whole-Home Standby Generator with Cellular Monitoring
For buyers who want an installed generator to carry more of the household at once, the Generac 22 kW is a stronger whole-home candidate than the 10 kW Generac in this lineup. It runs on natural gas or propane and automatically supplies power when it detects an outage, reducing the need for someone to start a portable generator during a storm. Its 240V output and 22 kW rating suit a broader set of residential loads, though actual coverage still depends on the home’s electrical setup and simultaneous demand. Cellular monitoring, maintenance alerts, low-oil shutdown, and cold-start support add useful oversight. The tradeoff is a large, 451-pound installed unit, plus Mobile Link app monitoring and control require a premium subscription. Compared with the Westinghouse WGen20000TFc, this is less about portable high output and more about automatic standby convenience.
Pros:- 22 kW output provides more household capacity than the Generac 10 kW model
- Automatically supplies power when an outage is detected
- Runs on natural gas or propane
- Cellular monitoring, maintenance alerts, and low-oil shutdown
Cons:- Mobile Link app monitoring and control require a premium subscription
- The 451-pound unit is suited to permanent installation, not portability
- Whole-home coverage depends on the home’s electrical setup and load demands
Best for: Homeowners who want automatic, higher-capacity residential backup and can arrange permanent installation with a natural-gas or propane supply.
Not ideal for: Renters, buyers who need a portable generator, or households that want to avoid installation and ongoing app subscription costs.
- Fuel types:Natural gas or propane
- Voltage:240V
- Connectivity:Built-in cellular; Mobile Link app features require a premium subscription
- Engine:Internal combustion
- Safety and operating features:Automatic voltage regulation, low-oil shutdown, cold-start support
- Weight:451 lbs
- Dimensions:46.4 × 26.3 × 30.7 in
- Warranty:5-year limited
Our verdict“Choose this Generac when automatic standby operation and higher residential capacity matter more than portability or avoiding installation.”
Westinghouse WGen20000TFc Tri-Fuel Portable Generator, 28,000 Peak Watts
The Westinghouse WGen20000TFc brings portable-generator flexibility to loads that demand substantial output: it delivers 20,000 running watts and can use gasoline, propane, or natural gas. That fuel choice is a meaningful advantage over the gasoline-only WGen20000c, especially for owners who want to connect to an available gas supply or keep more than one fuel option. Electric and remote start reduce the effort of getting it running, while its 240V output and transfer-switch-ready outlets support a home backup setup. Unlike the Generac 22 kW standby generator, it does not automatically take over during an outage, and the transfer switch is sold separately. Its 17.2-gallon tank is listed for up to 15 hours at 25% load, not at full output; the large unit also takes space and can be difficult to maneuver.
Pros:- 20,000W running output and 28,000W peak output
- Operates on gasoline, propane, or natural gas
- Electric and remote start
- Less than 5% THD, CO sensor, and low-oil shutdown
Cons:- Transfer switch is sold separately
- Large size makes positioning and maneuvering difficult
- Up to 15 hours of runtime is specified only at 25% load
Best for: Homeowners with substantial backup loads who want high portable output, multiple fuel choices, and the ability to use the generator for jobsite power.
Not ideal for: Buyers who need automatic outage response, a compact unit, or a complete transfer-switch setup in the box.
- Running wattage:20,000W
- Peak wattage:28,000W
- Fuel types:Gasoline, propane, and natural gas
- Engine:999cc 4-stroke OHV V-Twin
- Voltage:240V
- Fuel tank capacity:17.2 gallons
- Runtime:Up to 15 hours at 25% load
- Total harmonic distortion:Less than 5%
- Warranty:3-year limited residential
Our verdict“Choose the WGen20000TFc for high-output, multi-fuel portable backup if you can handle separate transfer-switch planning and manual outage operation.”
Westinghouse WGen20000c 28,000-Watt Portable Generator with Electric Start
The Westinghouse WGen20000c matches the WGen20000TFc’s 20,000W running and 28,000W peak ratings, but its simpler fuel setup is gasoline-only. That makes it a fit for buyers who already plan around stored gasoline, not for households wanting the propane or natural-gas flexibility offered by the tri-fuel sibling. Electric start and transfer-switch-ready 30A and 50A outlets help with home backup connections, while less than 5% THD is intended to reduce electrical distortion for sensitive electronics. The CO sensor and automatic low-oil shutdown add useful safeguards, but neither replaces safe placement and operation. Compared with the automatic Generac 22 kW standby generator, this Westinghouse requires manual startup and a separately purchased transfer switch. Its 17-gallon tank is listed for 11 hours of runtime, and the large frame is better suited to planned placement than frequent relocation.
Pros:- 20,000W running output and 28,000W peak output
- Electric start and transfer-switch-ready 30A and 50A outlets
- Less than 5% THD for sensitive electronics
- CO sensor and automatic low-oil shutdown
Cons:- Gasoline-only operation lacks the fuel flexibility of the WGen20000TFc
- Automatic transfer switch is sold separately
- Large portable format needs planned storage and placement
Best for: Homeowners who want high-output portable backup, have a dependable gasoline storage plan, and can arrange a separate transfer switch.
Not ideal for: Buyers who want to switch between fuel sources, need automatic standby operation, or cannot safely store gasoline.
- Running wattage:20,000W
- Peak wattage:28,000W
- Fuel type:Gasoline
- Engine:999cc 4-stroke V-twin OHV
- Fuel tank capacity:17 gallons
- Runtime:11 hours
- Voltage:240V
- Outlets:10 total, including 30A and 50A outlets
- Total harmonic distortion:Less than 5%
Our verdict“Choose the WGen20000c if gasoline-based portable power suits your backup plan and you do not need the tri-fuel flexibility of its sibling.”
Generac GP9500E Tri-Fuel Portable Generator, 12,500 Starting Watts, Electric Start
The GP9500E is a portable backup choice for homeowners who want fuel options without stepping up to the larger output of the Westinghouse WGen11500TFc. Its 9,500 running watts on gasoline and 120/240V outlets can support several household circuits through a compatible transfer setup, while its ability to use gasoline, propane, or natural gas adds flexibility when one supply is unavailable. Electric start reduces the effort of getting power running, and COsense shutdown and GFCI outlets add useful protections during outage use.
The tradeoff is that this is still a manually operated portable generator, not an automatic whole-home standby unit. At 219 pounds, it is not easy to reposition, and the 7.5-gallon tank means more frequent refueling than the WGen10500TFc’s larger tank. I’d choose it for adaptable fuel access, not for unattended backup or maximum runtime.
Pros:- Three fuel choices provide flexibility when gasoline is scarce or inconvenient.
- 9,500 running watts on gasoline supports multiple household loads.
- Electric start and included battery simplify startup.
- COsense shutdown, GFCI outlets, and 120/240V connections suit backup use.
Cons:- At 219 pounds, moving it requires planning and likely help.
- The 7.5-gallon tank limits gasoline runtime compared with the WGen10500TFc.
- Portable operation requires a suitable transfer setup and active oversight.
Best for: Homeowners with a transfer-switch setup who want a substantial portable generator and access to gasoline, propane, and natural gas.
Not ideal for: Buyers seeking automatic, unattended whole-home backup or a generator they can readily move alone.
- Model:8063
- Fuel types:Gasoline, liquid propane, natural gas
- Running watts:9,500 W
- Starting watts:12,500 W on gasoline
- Engine:500cc Generac OHV
- Fuel tank:7.5 gallons
- Runtime:Up to 9.5 hours at 50% load on gasoline; up to 14 hours at 25% load
- Starting method:Electric start with included 12V lead-acid battery
- Weight:219 lbs
Our verdict“Choose the GP9500E if you want tri-fuel flexibility and strong portable output, but skip it if you need automatic standby operation.”
Westinghouse WGen10500TFc Tri-Fuel Portable Generator with Remote Electric Start and CO Sensor
For homeowners who want portable backup with fewer refueling interruptions, the WGen10500TFc has a clear advantage over the Generac GP9500E: its 9.5-gallon tank is rated for up to 19 hours at 25% load, and its gasoline output reaches 10,500 running watts. Gasoline, propane, and natural gas give it the same broad fuel flexibility as the Generac, while a remote key fob lets you start it without walking to the unit. That can be useful when the generator is staged outside in poor weather.
This remains a portable machine, not an automatic whole-home system. The transfer switch is separate, and the heavy-duty design can be difficult to move. Its runtime figure is at a light load, so a home drawing more power will need more frequent fuel attention. I’d favor this over the GP9500E for higher output and longer light-load operation, but the WGen11500TFc is the stronger choice when still more capacity matters.
Pros:- 10,500 running watts on gasoline gives it more output than the Generac GP9500E.
- Gasoline, propane, and natural gas offer flexible fuel planning.
- Remote key fob and push-button starting reduce trips to the generator.
- The 9.5-gallon tank supports up to 19 hours at 25% load.
Cons:- Transfer switch is sold separately.
- Its heavy-duty portable frame can be difficult to move.
- The stated 19-hour runtime applies at 25% load, not full household demand.
Best for: Homeowners who need a high-output portable backup with three fuel options, remote starting, and longer light-load operation.
Not ideal for: Buyers who want automatic standby coverage, a supplied transfer switch, or a lightweight unit for frequent repositioning.
- Peak wattage:13,500 W
- Running wattage:10,500 W
- Fuel types:Gasoline, propane, natural gas
- Engine:500cc 4-stroke OHV
- Gasoline tank:9.5 gallons
- Runtime:Up to 19 hours at 25% load
- Starting system:Push-button electric start, remote key fob, recoil backup
- Safety features:CO sensor, automatic low-oil shutdown, overload protection
- Warranty:3-year limited residential warranty
Our verdict“Pick the WGen10500TFc if you want tri-fuel portable backup with higher output and extended light-load runtime, and can handle its size and separate transfer equipment.”
Westinghouse WGen9500DF Dual Fuel Portable Generator
The WGen9500DF makes sense for buyers who want substantial portable backup power but do not need natural-gas compatibility. It supplies 9,500 running watts on gasoline and 8,500 on propane, putting its gasoline output on par with the Generac GP9500E. Its remote, electric, and recoil starting options give owners more ways to get it running, and the digital display tracks voltage, frequency, and engine hours—useful information when managing loads and maintenance during an outage.
Compared with the tri-fuel GP9500E and WGen10500TFc, this model gives up natural-gas operation and some fuel flexibility. Its 6.6-gallon tank is rated for up to 12 hours, but actual runtime depends on load and conditions. The 120V listing and RV connections may suit some setups, though buyers should check the outlet details against their transfer equipment. I’d choose it for gasoline-or-propane backup, not for homes that depend on a natural-gas line.
Pros:- Gasoline and propane operation gives a useful alternative fuel choice.
- Remote, electric, and recoil starting provide several startup options.
- Digital display reports voltage, frequency, and engine hours.
- Transfer-switch and RV connections support more than one backup use.
Cons:- It does not run on natural gas like the GP9500E and WGen10500TFc.
- Gasoline runtime is up to 12 hours and varies with load.
- Gasoline output drops from 9,500 to 8,500 running watts on propane.
Best for: Homeowners with gasoline and propane available who want remote starting, useful operating data, and portable power for a compatible transfer setup.
Not ideal for: Buyers who want natural-gas operation, higher output than 9,500 running watts, or automatic standby coverage.
- Fuel types:Gasoline or propane
- Running watts:9,500 W on gasoline; 8,500 W on propane
- Peak watts:12,500 W on gasoline; 11,200 W on propane
- Engine:457cc 4-stroke OHV
- Fuel tank:6.6 gallons
- Runtime:Up to 12 hours
- Starting methods:Remote, electric, and recoil
- Outlets:6
- Warranty:3-year limited warranty
Our verdict“Choose the WGen9500DF if gasoline-and-propane flexibility and remote start meet your needs, but favor a tri-fuel model if natural gas is part of your backup plan.”
Westinghouse WGen11500TFc Tri-Fuel Portable Generator with CO Sensor
Among the portable models here, the WGen11500TFc offers the most running power: 11,500 watts on gasoline, with gasoline, propane, and natural gas available. That makes it a better fit than the WGen10500TFc for households expecting to run heavier loads, while the Generac 26kW standby generator remains the more hands-off route for automatic whole-home coverage. A 550cc engine, remote and push-button electric start, and outlets including L14-30R and 14-50R give this Westinghouse a strong portable-backup profile.
Its less-than-5% THD is a useful specification for buyers concerned about power quality for electronics, though appliance compatibility still depends on the equipment and setup. The 9.5-gallon tank is rated for up to 19 hours at 25% load, not at high demand. This is a substantial, heavy-duty unit, and transfer equipment is separate. I’d choose it when portable output takes priority over easy movement or automatic operation.
Pros:- 11,500 running watts on gasoline is the highest output among the portable products in this batch.
- Gasoline, propane, and natural gas provide three fuel options.
- Remote and push-button electric starts make startup more convenient.
- Less than 5% THD is a useful power-quality specification for electronics.
Cons:- Transfer switch is sold separately.
- Large, heavy-duty construction makes moving and placement more challenging.
- The 19-hour runtime is specified at 25% load, far below heavy household demand.
Best for: Homeowners with high electrical demand who need tri-fuel portable power and have a compatible transfer setup.
Not ideal for: Buyers who need automatic whole-home switchover, easy solo handling, or a transfer switch included with the generator.
- Peak wattage:14,500 W
- Running wattage:11,500 W
- Fuel types:Gasoline, propane, natural gas
- Engine:550cc 4-stroke OHV
- Fuel tank:9.5 gallons
- Runtime:Up to 19 hours at 25% load on gasoline
- Total harmonic distortion:Less than 5%
- Outlets:L14-30R 30A and 14-50R 50A
- Starting system:Push-button electric start and remote start
Our verdict“Choose the WGen11500TFc for maximum portable output and tri-fuel flexibility, but pick the Generac 26kW if you want installed automatic standby coverage.”
Generac 26kW Whole Home Generator with Cellular Capability
Unlike the portable generators in this group, the Generac 26kW is a fixed standby system designed to provide automatic backup for essential circuits or full-home coverage, depending on the installation and load plan. Its 26kW output is well above the WGen11500TFc’s 11,500 running watts, and operation on natural gas or propane avoids routine gasoline storage and refueling. Built-in cellular capability connects the unit to the Mobile Link app for monitoring and control, a meaningful convenience for owners who want to check system status away from home.
This convenience comes with installation demands: the 524-pound enclosure needs a suitable permanent location and professional planning, unlike a portable generator that can be repositioned. Remote monitoring requires a paid Mobile Link premium subscription, and the product data does not specify an included transfer switch. Its five-year limited warranty is longer than the portable models’ listed coverage, but this is a much larger commitment than choosing the GP9500E or another portable unit.
Pros:- 26kW output supports a larger planned household load than the portable models listed here.
- Standby design provides automatic backup rather than requiring manual generator startup.
- Natural-gas and propane operation avoids gasoline tank refills.
- Cellular monitoring and a five-year limited warranty add ongoing support features.
Cons:- At 524 pounds and over 46 inches long, it requires permanent-site planning and installation.
- Premium Mobile Link monitoring requires a paid subscription.
- The product data does not specify an included transfer switch.
Best for: Homeowners seeking installed, automatic backup for essential circuits or a planned full-home load, with natural gas or propane available.
Not ideal for: Renters, buyers needing a portable or low-installation-cost backup, and owners who do not want a paid subscription for premium remote monitoring.
- Output:26kW (26,000 W)
- Fuel types:Natural gas, propane
- Voltage:240 V
- Connectivity:Built-in cellular capability with Mobile Link app
- Features:Automatic idle control, automatic voltage regulation, fuel-efficient operation, low-oil shutdown
- Weight:524 lbs
- Dimensions:46.4 × 26.3 × 30.7 inches
- Warranty:5-year limited warranty
Our verdict“Choose the Generac 26kW for installed automatic whole-home backup and remote status checks, but opt for a portable model if mobility and simpler setup matter more.”
Generac 22 kW Whole Home Standby Generator with 200 Amp Transfer Switch and Cellular Connectivity
For homeowners who want automatic backup across more of the house, this 22 kW standby generator offers substantially more output than the 14 kW Generac in this roundup. Its 200 amp automatic transfer switch detects an outage and starts the generator without requiring someone to wheel out a portable unit or connect it by hand. Natural gas and liquid propane support a fixed installation tied to the home’s fuel supply, while cold-start support and oil-level monitoring help with readiness and maintenance. Built-in cellular monitoring adds remote status checks, but Mobile Link requires a premium subscription, so ongoing app access is not entirely included. At 451 pounds, this is a permanent-installation choice, not a movable backup. I’d favor it over the DuroMax XP13000EH when automatic, higher-capacity standby power matters more than portability; buyers with modest loads may find the 14 kW model a closer fit.
Pros:- Automatically starts when utility power is interrupted
- 22 kW output exceeds the 14 kW Generac standby option in this roundup
- Runs on natural gas or liquid propane
- Includes a 200 amp automatic transfer switch and 5-year limited warranty
Cons:- Mobile Link premium subscription is required for remote monitoring
- At 451 pounds, it needs a permanent installation rather than routine repositioning
- Higher output may be unnecessary for homes with limited backup loads
Best for: Homeowners with higher electrical loads who want automatic, permanently installed backup on natural gas or liquid propane.
Not ideal for: Buyers seeking a portable generator, avoiding a monitoring subscription, or backing up only a smaller set of essential circuits.
- Power output:22 kW (22,000 watts)
- Fuel:Natural gas or liquid propane
- Voltage and frequency:240 volts, 60 Hz
- Transfer switch:200 amp automatic
- Connectivity:Built-in cellular; Mobile Link premium subscription required
- Weight:451 lbs
- Dimensions:46.4 × 26.3 × 30.7 in
- Warranty:5-year limited
Our verdict“Choose this Generac for automatic, higher-capacity whole-home backup when you have a suitable fixed fuel supply and installation plan.”
DuroMax XP13000EH 13,000-Watt Dual-Fuel Portable Generator
The DuroMax XP13000EH suits buyers who want substantial backup output without committing to a permanently installed standby system. It delivers 10,500 running watts, accepts gasoline or propane, and has a 50-amp transfer-switch-ready outlet for connection to a compatible home setup. Compared with the Generac 14 kW standby generator, the DuroMax requires manual setup and starting during an outage, but it can also move between home, RV, and job-site use. Its 500cc engine, electric start, and all-metal frame support a work-oriented design; the tradeoff is a hefty 234-pound unit that is not easy to reposition. The listed 3-hour runtime also calls for frequent refueling, making it less convenient for extended outages than the Westinghouse WGen10500DFc, which lists up to 19 hours at 25% load.
Pros:- Gasoline and propane fuel options provide operating flexibility
- 10,500 running watts can support substantial household loads
- Electric start and a transfer-switch-ready 50-amp outlet
- All-metal frame, copper windings, and no-flat tires
Cons:- Manual deployment and startup do not match an automatic standby generator
- Listed runtime is only 3 hours
- At 234 pounds, moving it can be difficult
Best for: Households that need a portable, high-output generator for essential home circuits and want to use it for RV trips or job sites as well.
Not ideal for: Homeowners who want automatic outage response, long intervals between refueling, or an easy-to-move generator.
- Starting wattage:13,000 watts
- Running wattage:10,500 watts
- Fuel:Gasoline or propane
- Engine:500cc OHV, 4-stroke
- Voltage and frequency:240 volts, 60 Hz
- Starting system:Electric start
- Runtime:3 hours, as listed
- Weight:234 lbs
Our verdict“Pick the DuroMax if you want portable dual-fuel output and accept manual setup and frequent refueling in exchange for flexibility beyond home backup.”
Westinghouse WGen10500DFc Dual-Fuel Portable Generator with Remote Electric Start and CO Sensor
Among the portable choices here, the WGen10500DFc stands out for pairing 10,500 running watts with a stated gasoline runtime of up to 19 hours at 25% load. That longer interval between refills gives it an advantage over the DuroMax XP13000EH, whose listed runtime is three hours, though actual runtime depends on load and fuel. The Westinghouse also runs on propane, starts by remote key fob or push button, and has a recoil backup, making it easier to bring online than a basic pull-start portable. A CO sensor, low-oil shutdown, overload protection, and fuel gauge add practical safeguards and operating information during an outage. It remains a portable generator rather than automatic whole-home standby: the transfer switch is sold separately, and the heavy-duty design may be hard to move. I’d choose it over the DuroMax for longer listed gasoline operation, not for hands-free outage coverage.
Pros:- Up to 19 hours of runtime at 25% load on a 9.5-gallon gasoline tank
- Runs on gasoline or propane
- Remote key fob, push-button electric start, and recoil backup
- CO sensor, low-oil shutdown, and overload protection
Cons:- Transfer switch is sold separately
- Portable setup still requires manual deployment and connection during an outage
- Heavy-duty design may be difficult to move
Best for: Homeowners who want a portable dual-fuel backup with remote starting and longer listed gasoline runtime at a light load.
Not ideal for: Buyers who need automatic, unattended whole-home backup or expect a transfer switch to be included.
- Peak wattage:13,500 watts
- Running wattage:10,500 watts
- Fuel:Gasoline or propane
- Engine:500cc 4-stroke OHV
- Gasoline tank:9.5 gallons
- Runtime:Up to 19 hours at 25% load
- Starting system:Push-button electric start, remote key fob, recoil backup
- Warranty:3-year limited residential
Our verdict“Choose the WGen10500DFc for portable backup with remote starting and a longer stated light-load runtime, while accepting separate transfer-switch planning.”
Generac 14 kW Whole-Home Standby Generator with 200 Amp Transfer Switch and Cellular Connectivity
This 14 kW Generac is the fixed-installation choice for homeowners who value automatic outage response but do not need the 22 kW model’s higher output. Its included 200 amp automatic transfer switch handles the changeover when utility power fails, while natural gas or LP connects it to a home fuel supply rather than a portable generator’s refueling routine. Built-in cellular connectivity, maintenance alerts, cold-start features, and oil-level sensors support remote oversight and readiness. The tradeoff is that real-time Mobile Link updates require a premium subscription, and the 391-pound unit is large enough to call for a planned professional installation. Compared with the 22 kW Generac, this model offers less capacity for high-demand loads; compared with the Westinghouse WGen10500DFc, it trades portability and extended operation away from a fixed site for automatic starting and a permanent connection.
Pros:- Automatically detects outages and starts backup power
- Includes a 200 amp automatic transfer switch
- Runs on natural gas or LP
- Cellular monitoring, maintenance alerts, and cold-start features
Cons:- 14 kW output is lower than the 22 kW Generac for larger loads
- Real-time Mobile Link updates require a premium subscription
- Large, heavy unit may require professional installation
Best for: Homeowners seeking automatic backup for essential household loads, with an existing natural gas or LP supply and a permanent installation site.
Not ideal for: Homes with high simultaneous electrical demand, buyers seeking portable backup, or owners who do not want subscription-based remote updates.
- Power output:14 kW (14,000 watts)
- Fuel:Natural gas or LP
- Voltage and frequency:240 volts, 60 Hz
- Transfer switch:200 amp automatic
- Connectivity:Built-in cellular connectivity
- Engine:Internal combustion
- Weight:391 lbs
- Dimensions:46.4 × 26.3 × 30.7 in
Our verdict“Choose this model for automatic, fixed standby coverage of essential home loads when the 22 kW Generac offers more capacity than you need.”
How We Picked
I ranked these options by how well their format and capacity match the promise of whole-home backup, not by wattage alone. I weighed standby automation, transfer-switch details, stated output, fuel flexibility, monitoring, and practical usability. A permanently installed standby unit earns a higher place for buyers who want the home to restore power with little intervention; portable generators rank for flexibility and lower installation commitment, but they do not automatically power every circuit. The battery-based Jackery is included as an alternative for quiet, emissions-free-at-use backup, not as a like-for-like substitute for a high-output fuel generator.
Where product names point to different packages or omit details, I avoid assuming that a transfer switch, installation service, or particular home coverage is included. Ranking favors clear fit for a defined buyer and a credible balance of capacity, convenience, and flexibility. That is why the 22kW Generac with cellular monitoring leads, while the 26kW Generac is the premium-capacity choice and the portable models are separated by output and fuel options. All generators still need correct load planning, safe placement, and attention to manufacturer installation requirements.
| whole home backup generator | Fuel types |
|---|---|
| Jackery Solar Generator 5000 P | — |
| Generac 10 kW Whole-Home Stand | Natural gas or propane |
| Generac 22kW Whole-Home Standb | Natural gas or propane |
| Westinghouse WGen20000TFc Tri- | Gasoline, propane, and natural gas |
| Westinghouse WGen20000c 28,000 | — |
| Generac GP9500E Tri-Fuel Porta | Gasoline, liquid propane, natural gas |
| Westinghouse WGen10500TFc Tri- | Gasoline, propane, natural gas |
| Westinghouse WGen9500DF Dual F | Gasoline or propane |
| Westinghouse WGen11500TFc Tri- | Gasoline, propane, natural gas |
| Generac 26kW Whole Home Genera | Natural gas, propane |
| Generac 22 kW Whole Home Stand | — |
| DuroMax XP13000EH 13,000-Watt | — |
| Westinghouse WGen10500DFc Dual | — |
| Generac 14 kW Whole-Home Stand | — |
Factors to Consider When Choosing Whole Home Backup Generators
Before choosing a model, decide what whole-home backup means for your household: keeping every circuit available, or keeping selected essentials running during an outage. The right choice depends on peak loads, fuel access, installation constraints, and how much work you are willing to do when the power goes out.
Define the Loads You Need to Keep Running
Write down the appliances and systems you expect to use at the same time, including heating or cooling equipment, a well pump, refrigeration, lighting, and medical devices. Their starting demand can exceed their normal running draw, so simply adding labeled operating watts may understate what a generator must handle. Ask an electrician to assess the loads and identify whether a transfer switch or load-management system can keep demand within the generator’s capacity. A portable generator may support a selected-circuit plan even when it cannot carry every household load at once. The common mistake is treating a high peak-watt number as proof that all circuits can run continuously. Match the generator to your actual outage plan, not the phrase “whole home” on a product listing.
Choose Between Automatic Standby and Portable Backup
A standby generator is permanently installed and paired with transfer equipment so it can restore power automatically when utility service fails. That convenience suits households where outages are frequent, mobility is limited, or manual setup is undesirable. Portable units offer more flexibility and can be moved or stored, but someone must position, connect, and operate them according to the manufacturer’s instructions. They should run outdoors, away from doors, windows, and vents, because exhaust can be deadly. Buyers sometimes compare a portable generator’s wattage directly with a standby unit without accounting for the transfer equipment and labor needed to use it safely. Decide how much automatic operation matters before comparing model specifications.
Plan Fuel Supply and Replenishment
Fuel flexibility matters most when outages last longer than expected or local supplies become hard to reach. Tri-fuel portable models can accept gasoline, propane, or natural gas, while dual-fuel models provide two options; the usable output and runtime can vary by fuel. A standby system is generally tied to a permanent fuel connection, so confirm the required supply, local availability, and installation conditions before purchase. Gasoline may be easy to obtain but requires safe storage and regular attention, while propane needs suitable storage capacity and natural gas depends on a functioning supply line. Do not assume a fuel-compatible generator will deliver identical performance on every fuel. Build a realistic replenishment plan around the longest outage you want to cover.
Check Transfer Equipment, Installation, and Local Rules
The generator alone does not determine which parts of a home can receive power; the transfer switch, panel arrangement, and installation design matter too. Product listings in this roundup vary in whether a transfer switch is explicitly included, so verify the exact package rather than relying on a model-family name. Standby installation can involve electrical work, fuel-line changes, permits, clearances, and placement rules. Portable generators also need a suitable connection method, and a qualified electrician can help prevent dangerous backfeeding. Buyers often budget for the machine but overlook site preparation and connection hardware. Get a written installation scope before selecting a standby model or assuming a portable unit can plug into a home panel.
Compare Output, Starting Demand, and Load Management
Starting watts describe short bursts needed by motor-driven equipment, while running watts indicate the sustained load a generator can support. Compare the relevant figures for the fuel you plan to use, and check whether your largest appliances may start at the same time. Load management can let a smaller standby system support more circuits by sequencing high-demand equipment rather than running everything simultaneously. That may be a better fit than buying the largest unit if your household can tolerate brief limits on some appliances. Conversely, a large portable generator does not automatically provide whole-home connection or automatic circuit control. Ask an installer to explain how the system handles simultaneous starts and what loads will be shed.
Account for Noise, Maintenance, and Outage Routine
Think beyond the day of purchase: generators need upkeep, and their location affects neighbors, household comfort, and safe operation. Fuel-powered units require scheduled maintenance and may need checks or service after extended use; standby systems also need a qualified installation and a maintenance plan. Battery systems avoid engine noise and exhaust during operation, but their backup duration depends on stored energy and the ability to recharge. Portable models add hands-on tasks such as setup, fuel checks, and securing the unit. A common mistake is choosing solely by capacity while ignoring who will operate the equipment during bad weather or at night. Pick the routine your household can realistically manage, then check service access and manufacturer maintenance requirements.
Frequently Asked Questions
Can a portable generator actually power my whole house?
It can support many household loads, but that does not mean every circuit can run at once or that the generator connects safely without additional equipment. The result depends on generator output, appliance starting demand, a transfer switch or approved connection, and how loads are managed. High-output models such as the WGen20000 series offer more headroom than smaller portables, yet still need a planned electrical setup. Ask an electrician to map the circuits and confirm the safe connection method before buying. If automatic, broad coverage is the priority, compare a permanently installed standby system instead.
Should I choose a 22kW or 26kW standby generator?
Start with a load calculation, not the difference in the model numbers. A 26kW unit may provide more capacity for simultaneous household demands, but it can be unnecessary if a 22kW system with suitable load management covers the circuits you need. The fuel supply, transfer-switch package, installation conditions, and expected starting loads also affect the choice. Ask the installer to show which loads each option can support together and what would be shed. This makes the decision about real household use rather than a capacity label alone.
Is a tri-fuel generator worth choosing over a dual-fuel model?
Tri-fuel flexibility can help if you want a backup plan across gasoline, propane, and natural gas, especially when one supply may be unavailable during a prolonged outage. It is less useful if you already have a dependable preferred fuel and do not plan to switch. Check output and operating guidance for each fuel because performance can differ, and confirm that your home’s gas connection is suitable before relying on it. Dual-fuel models still provide a useful fallback while keeping the choice simpler. The best fit is the one that matches fuel you can store or access safely.
What should I verify before ordering a standby generator package?
Confirm whether the listed package includes the transfer switch, monitoring hardware, and any other components you expect, since similar model names can refer to different bundles. Ask about installation labor, permits, fuel-line work, electrical upgrades, site preparation, and commissioning. Also verify the required clearances and whether local rules affect where the unit can be placed. A product listing rarely settles those site-specific details. Get the full equipment list and installation scope in writing before committing.
Can the Jackery Solar Generator 5000 Plus replace a fuel-powered whole-home generator?
It may suit a household seeking quiet, battery-based backup for selected loads, but do not assume it will operate every home circuit or provide the same duration as a fuel-powered generator. Check the system’s usable capacity, output limits, expansion options, and charging time against the appliances you need during an outage. Solar recharging depends on sunlight, panel placement, and weather, so it may not replenish energy quickly during poor conditions. A fuel generator can keep producing power while fuel is available, while a battery system draws from stored energy until recharged. Compare the outage duration and loads you need covered before treating either format as a substitute for the other.
Conclusion
For most buyers seeking automatic household coverage, I recommend the Generac 22kW Whole-Home Standby Generator with Cellular Monitoring as the best overall fit in this lineup. The best value for flexible backup is the Westinghouse WGen10500TFc: it combines tri-fuel options with remote electric start, though it remains a portable unit and needs a safe connection plan. For premium capacity, consider the Generac 26kW model after an installer confirms your loads and fuel setup. The best option for beginners is a professionally specified standby package with a clearly confirmed transfer switch, such as the Generac 14kW package listed with a 200-amp switch; buyers should still get the installation scope in writing. For high-output portable needs, compare the WGen20000TFc and WGen20000c, while the Jackery makes more sense for quiet battery backup of selected loads. Choose based on the circuits you need, the fuel and installation you can support, and how much manual involvement your household can accept.
