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10 Best Home Backup Generators 2025 in the United States
#1
Winner
EF ECOFLOW Portable Power Station DELTA 2, 1024Wh LiFePO4 (LFP) Battery, 1800W AC/100W USB-C Output, Solar Generator(Solar Panel Optional) for Home Backup Power, Camping & RVs
The EF ECOFLOW Portable Power Station DELTA 2 boasts an impressive power output of 1800 watts, with a starting wattage of 2700 watts, making it capable of powering 90% of home appliances. It's exceptionally flexible with its expandable capacity from 1kWh to 3kWh, ideal for various uses such as home backup power, camping, or RV trips. The unit uses a lithium iron phosphate (LiFePO4) battery, which is known for its safety and long lifespan of over 3000 charge cycles, ensuring durability and reliability over several years.
Rating
9.9
Chosen by1,167
Power Output (Wattage)
Noise Level
Automatic Transfer Switch (ATS)
Most important from
3605 reviews
#2
Westinghouse 14500 Peak Watt Tri-Fuel Home Backup Portable Generator, Remote Electric Start, Transfer Switch Ready, Gas, Propane, and Natural Gas Powered
The Westinghouse Outdoor Power Equipment 14500 Peak Watt Tri-Fuel Home Backup Portable Generator is a versatile and powerful option for home backup power. With a peak wattage of 14,500 and running wattage of 11,500 when using gasoline, it can easily handle the needs of larger homes. The generator also supports propane and natural gas, offering flexibility depending on fuel availability. It runs for up to 19 hours on a full 9.5-gallon gasoline tank, which is impressive for extended power outages. However, run time is shorter with a propane tank, at around 7 hours.
Rating
9.8
Power Output (Wattage)
Fuel Type
Run Time
Most important from
1755 reviews
#3
Westinghouse 12500 Watt Dual Fuel Home Backup Portable Generator, Remote Electric Start, Transfer Switch Ready, Gas and Propane Powered
The Westinghouse 12500 Watt Dual Fuel Home Backup Portable Generator is a robust option for those needing reliable power during outages. It boasts a significant power output with 9500 running watts and 12500 peak watts on gasoline, and slightly lower on propane. The dual fuel capability is a strong advantage, offering flexibility depending on fuel availability. With up to 12 hours of run time on a 6.6-gallon fuel tank, it can handle prolonged power interruptions.
Rating
9.7
Power Output (Wattage)
Fuel Type
Run Time
Most important from
24725 reviews
Top 10 Best Home Backup Generators 2025 in the United States
#1
Winner
9.9 score
EF ECOFLOW Portable Power Station DELTA 2, 1024Wh LiFePO4 (LFP) Battery, 1800W AC/100W USB-C Output, Solar Generator(Solar Panel Optional) for Home Backup Power, Camping & RVs
EF ECOFLOW Portable Power Station DELTA 2, 1024Wh LiFePO4 (LFP) Battery, 1800W AC/100W USB-C Output, Solar Generator(Solar Panel Optional) for Home Backup Power, Camping & RVs
Power Output (Wattage): 1800 Watts
Fuel Type: Solar Powered
Portability: 27 pounds
Chosen by 1167 this week
Westinghouse 14500 Peak Watt Tri-Fuel Home Backup Portable Generator, Remote Electric Start, Transfer Switch Ready, Gas, Propane, and Natural Gas Powered
Westinghouse 14500 Peak Watt Tri-Fuel Home Backup Portable Generator, Remote Electric Start, Transfer Switch Ready, Gas, Propane, and Natural Gas Powered
Power Output (Wattage): 14500
Fuel Type: Gasoline, Natural Gas, LPG
Run Time: 19 hours
Automatic Transfer Switch (ATS): Yes
Portability: 230 pounds, relatively heavy
Westinghouse 12500 Watt Dual Fuel Home Backup Portable Generator, Remote Electric Start, Transfer Switch Ready, Gas and Propane Powered
Westinghouse 12500 Watt Dual Fuel Home Backup Portable Generator, Remote Electric Start, Transfer Switch Ready, Gas and Propane Powered
Power Output (Wattage): 9500 running, 12500 peak on gasoline
Fuel Type: Dual Fuel (gasoline, propane)
Run Time: up to 12 hours on 6.6-gallon
Automatic Transfer Switch (ATS): transfer switch ready
Portability: 210 pounds
Generac Guardian 10kW Home Standby Generator with 100 Amp Transfer Switch, Durable All Aluminum, WiFi Enabled with G-Force Engine, Easy to Use, Whole House Power Backup, Smart Outage Solution - Bisque
Generac Guardian 10kW Home Standby Generator with 100 Amp Transfer Switch, Durable All Aluminum, WiFi Enabled with G-Force Engine, Easy to Use, Whole House Power Backup, Smart Outage Solution - Bisque
Power Output (Wattage): 10000 watts
Fuel Type: Natural Gas or LP Gas
Automatic Transfer Switch (ATS): 100-amp transfer switch
Portability: 338 pounds
Westinghouse 28000 Peak Watt Home Backup Portable Generator, Remote Electric Start with Auto Choke, Transfer Switch Ready 30A & 50A Outlets, Gas Powered, CO Sensor,Blue
Westinghouse 28000 Peak Watt Home Backup Portable Generator, Remote Electric Start with Auto Choke, Transfer Switch Ready 30A & 50A Outlets, Gas Powered, CO Sensor,Blue
Power Output (Wattage): 28000 peak, 20000 running
Fuel Type: Gasoline
Run Time: 11 hours
Portability: 599 pounds
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DuroMax XP13000EH 13,000-Watt Dual Fuel Portable Generator - Gas & Propane, Electric Start, Whole Home Backup Power, Transfer Switch Ready, RV & Emergency Ready
DuroMax XP13000EH 13,000-Watt Dual Fuel Portable Generator - Gas & Propane, Electric Start, Whole Home Backup Power, Transfer Switch Ready, RV & Emergency Ready
Power Output (Wattage): 13000 watts
Fuel Type: GASOLINE / PROPANE
Automatic Transfer Switch (ATS): ATS-ready outlet
Portability: No-flat tires, foldable handle
Westinghouse 13500 Peak Watt Tri-Fuel Home Backup Portable Generator, Remote Electric Start, Transfer Switch Ready, Gas, Propane, and Natural Gas Powered
Westinghouse 13500 Peak Watt Tri-Fuel Home Backup Portable Generator, Remote Electric Start, Transfer Switch Ready, Gas, Propane, and Natural Gas Powered
Power Output (Wattage): 13500 peak, 10500 running on gasoline
Fuel Type: Tri-Fuel (Gasoline, Propane, Natural Gas)
Run Time: 19 hours
Automatic Transfer Switch (ATS): ATS-ready
Portability: Portable, 230 pounds
DuroMax XP13000HX Dual Fuel Portable Generator - 13000 Watt Gas or Propane Powered - Electric Start w/ CO Alert, 50 State Approved, Blue
DuroMax XP13000HX Dual Fuel Portable Generator - 13000 Watt Gas or Propane Powered - Electric Start w/ CO Alert, 50 State Approved, Blue
Power Output (Wattage): 13000
Fuel Type: GASOLINE / PROPANE
Automatic Transfer Switch (ATS): Yes
Portability: Portable
Westinghouse 12500 Peak Watt Tri-Fuel Home Backup Portable Generator, Remote Electric Start, Transfer Switch Ready, Gas, Propane, and Natural Gas Powered
Westinghouse 12500 Peak Watt Tri-Fuel Home Backup Portable Generator, Remote Electric Start, Transfer Switch Ready, Gas, Propane, and Natural Gas Powered
Power Output (Wattage): 12500 watts
Fuel Type: Natural Gas, Propane, Gasoline
Run Time: 12 hours
Noise Level: 74 dB
Automatic Transfer Switch (ATS): Yes
#10
8.0 score
Honda 664240 EU2200i 2200 Watt Portable Inverter Generator with Co-Minder
Honda 664240 EU2200i 2200 Watt Portable Inverter Generator with Co-Minder
Power Output (Wattage): 2200 starting, 1800 running watts
Fuel Type: Gasoline
Run Time: 9.6 hours
Noise Level: 48 to 57 dBA
Portability: 46.5 pounds
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Buying Guide for the Best Home Backup Generators
Choosing the right home backup generator is crucial to ensure that your home remains powered during outages. A backup generator can provide peace of mind and keep essential appliances and systems running smoothly. To make an informed decision, you need to understand the key specifications and how they align with your needs. Here are the main factors to consider when selecting a home backup generator.Power Output (Wattage)Power output, measured in watts (W), indicates how much electricity the generator can produce. This is important because it determines how many and which types of appliances and systems you can run simultaneously. Generators typically range from 5,000 to 20,000 watts. For basic needs like lights, refrigerator, and a few small appliances, a generator with 5,000 to 7,500 watts may suffice. For whole-house coverage, including HVAC systems, you might need 10,000 to 20,000 watts. Assess your power needs by listing essential devices and their wattage requirements to choose the right generator.
Fuel TypeHome backup generators can run on various fuel types, including gasoline, propane, natural gas, and diesel. The fuel type affects the generator's runtime, maintenance, and availability during emergencies. Gasoline is widely available but has a shorter shelf life. Propane and natural gas are cleaner and can be stored for longer periods, with natural gas offering the convenience of a continuous supply if you have a gas line. Diesel is efficient and has a long shelf life but can be harder to find. Choose a fuel type based on availability, storage, and your preference for maintenance and environmental impact.
Run TimeRun time refers to how long a generator can operate on a full tank of fuel. This is crucial for determining how often you will need to refuel during an outage. Generators with larger fuel tanks or those that run on natural gas can provide longer run times. For short outages, a generator with a run time of 8-12 hours may be sufficient. For extended outages, look for generators that can run continuously for 24 hours or more. Consider your typical outage duration and how often you can refuel when choosing a generator with the appropriate run time.
Noise LevelNoise level, measured in decibels (dB), indicates how loud the generator will be during operation. This is important for maintaining a comfortable environment, especially if the generator is close to living areas. Generators can range from 50 dB (quiet) to over 80 dB (loud). For residential areas, a quieter generator (50-60 dB) is preferable to avoid disturbing neighbors and household members. If noise is not a major concern, you may opt for a louder generator with higher power output. Consider the placement of the generator and your tolerance for noise when making your choice.
Automatic Transfer Switch (ATS)An Automatic Transfer Switch (ATS) allows the generator to automatically switch on and off during a power outage, ensuring a seamless transition. This is important for convenience and safety, as it eliminates the need for manual intervention. Some generators come with an ATS, while others require a separate purchase. If you want a hassle-free experience and immediate power restoration, choose a generator with an ATS. For those who don't mind manually starting the generator, this feature may not be as critical. Consider your preference for convenience and the importance of uninterrupted power when deciding on an ATS.
PortabilityPortability refers to the ease with which you can move the generator. This is important if you need to transport the generator to different locations or store it when not in use. Portable generators are typically smaller and have wheels for easy movement, making them suitable for temporary power needs and smaller homes. Stationary generators are larger, permanently installed units that provide more power and are ideal for whole-house coverage. Consider whether you need a generator that can be easily moved or if a permanent installation better suits your needs.