10 Best Home Backup Generators 2026 in the United States
#1
Winner
Generac 18kW Home Standby Generator, Cellular Connectivity, Easy To Use, Whole House Power Backup, Smart Outage Solution
The Generac 18kW Home Standby Generator is designed to provide reliable, whole-house backup power during outages, making it a strong choice for homeowners wanting to keep essential systems like heating, cooling, and refrigeration running smoothly. With an 18,000-watt output, it can comfortably handle most residential power needs. It runs on fuel such as natural gas or propane, and its smart fuel and ignition controls help optimize usage, which can save money and reduce emissions over time.
Rating
10.0
Chosen by1,291
Fuel Type
Noise Level
Automatic Transfer Switch (ATS)
Most important from
1 reviews
#2
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
10.0
Power Output (Wattage)
Noise Level
Automatic Transfer Switch (ATS)
Most important from
4787 reviews
#3
Generac Guardian 10kW Home Standby Generator with 100 Amp Transfer Switch - Automatic Whole House Backup Power for Storms, Emergencies, and Outages, WiFi Enabled, Runs on Natural Gas or Liquid Propane
The Generac 7172 10kW Air Cooled Guardian Series Home Standby Generator is a strong choice for homeowners looking to maintain power during outages. With a power output of 10,000 watts, it provides ample energy for essential appliances and systems in your home, ensuring comfort and safety. Its ability to run on either natural gas or LP gas adds flexibility in fuel choice, which is a plus for many users.
Rating
9.7
Power Output (Wattage)
Noise Level
Automatic Transfer Switch (ATS)
Most important from
35 reviews
Top 10 Best Home Backup Generators 2026 in the United States
#1
Winner
Generac 18kW Home Standby Generator, Cellular Connectivity, Easy To Use, Whole House Power Backup, Smart Outage Solution
Generac 18kW Home Standby Generator, Cellular Connectivity, Easy To Use, Whole House Power Backup, Smart Outage Solution
Power Output (Wattage): 18000 watts
Fuel Type: natural gas or propane
Automatic Transfer Switch (ATS): yes
Portability: limited
Chosen by 1291 this week
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
Generac Guardian 10kW Home Standby Generator with 100 Amp Transfer Switch - Automatic Whole House Backup Power for Storms, Emergencies, and Outages, WiFi Enabled, Runs on Natural Gas or Liquid Propane
Generac Guardian 10kW Home Standby Generator with 100 Amp Transfer Switch - Automatic Whole House Backup Power for Storms, Emergencies, and Outages, WiFi Enabled, Runs on Natural Gas or Liquid Propane
Power Output (Wattage): 10000 watts
Fuel Type: Natural Gas or LP Gas
Automatic Transfer Switch (ATS): 100-amp transfer switch
Portability: 338 pounds
DuroMax XP16000iH 16,000-Watt Dual Fuel Portable Digital Inverter Generator - Gas & Propane, Remote Electric Start, Whole Home Power Backup, Transfer Switch Ready, RV & Emergency Ready
DuroMax XP16000iH 16,000-Watt Dual Fuel Portable Digital Inverter Generator - Gas & Propane, Remote Electric Start, Whole Home Power Backup, Transfer Switch Ready, RV & Emergency Ready
Power Output (Wattage): 16000W start, 13000W running
Fuel Type: Gasoline, Propane
Run Time: 10 hours
Automatic Transfer Switch (ATS): Transfer switch ready
Portability: Limited, 368 pounds weight
Generac Guardian 22kW Home Standby Generator with 200 Amp Transfer Switch - Automatic Whole House Backup Power for Storms, Emergencies, and Outages, WiFi Enabled, Runs on Natural Gas or Liquid Propane
Generac Guardian 22kW Home Standby Generator with 200 Amp Transfer Switch - Automatic Whole House Backup Power for Storms, Emergencies, and Outages, WiFi Enabled, Runs on Natural Gas or Liquid Propane
Power Output (Wattage): 22000 watts
Fuel Type: Natural or LP Gas
Automatic Transfer Switch (ATS): 200 amps
Portability: Stationary
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Honda EU7000IS 7,000 Watt Inverter Portable Backup Generator, Super Quiet, Electric Start
Honda EU7000IS 7,000 Watt Inverter Portable Backup Generator, Super Quiet, Electric Start
Power Output (Wattage): 7000
Fuel Type: Fuel Powered
Run Time: 6.5 hours
Portability: 270 pounds
DuroMax XP13000E 13,000-Watt Gas Powered Portable Generator - Electric Start, Whole Home Backup Power, Transfer Switch Ready, RV & Emergency Ready
DuroMax XP13000E 13,000-Watt Gas Powered Portable Generator - Electric Start, Whole Home Backup Power, Transfer Switch Ready, RV & Emergency Ready
Power Output (Wattage): 13000 watts
Fuel Type: Gasoline
Automatic Transfer Switch (ATS): transfer switch ready
Portability: Portable, foldable handle, wheels
WEN 14,500-Watt 120V/240V Tri-Fuel Generator for Gas, Propane, and Natural Gas, Transfer-Switch Ready with Electric Start, Wheel Kit, and CO Watchdog (TF1450X)
WEN 14,500-Watt 120V/240V Tri-Fuel Generator for Gas, Propane, and Natural Gas, Transfer-Switch Ready with Electric Start, Wheel Kit, and CO Watchdog (TF1450X)
Power Output (Wattage): 14500 starting, 11500 running watts
Fuel Type: Gasoline, Propane, Natural Gas
Run Time: 12 hours at half load
Automatic Transfer Switch (ATS): Supports transfer switches
Portability: Wheel kit, weighs 247 pounds
Kohler 26RCAL-200SELS Air-Cooled Standby Generator with 200 Amp Transfer Switch Single Phase, 26,000-Watt
Kohler 26RCAL-200SELS Air-Cooled Standby Generator with 200 Amp Transfer Switch Single Phase, 26,000-Watt
Power Output (Wattage): 26000
Fuel Type: Liquid Propane, Natural Gas
Automatic Transfer Switch (ATS): 200 amp
Portability: Not portable
#10
Generac 12,500 Starting Watt Tri-Fuel Portable Generator - Electric Start - Gas, Propane or Natural Gas - Home Backup, Jobsite, or RV - Quiet Operation - Long Runtime - 50-State Compliant
Generac 12,500 Starting Watt Tri-Fuel Portable Generator - Electric Start - Gas, Propane or Natural Gas - Home Backup, Jobsite, or RV - Quiet Operation - Long Runtime - 50-State Compliant
Power Output (Wattage): Running 9500W, Starting 12500W
Fuel Type: Gasoline, Propane, Natural Gas
Run Time: Up to 10.5 hours half load
Automatic Transfer Switch (ATS): No
Portability: Portable, 227 lbs, heavy-duty wheels
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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.