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10 Best Generac Generators 2025 in the United States

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Our Top Picks

#1

Winner

Generac Guardian 22kW Home Standby Generator with 200 Amp Transfer Switch, Durable All Aluminum, WiFi Enabled with G-Force Engine, Easy to Use, Whole House Power Backup, Smart Outage Solution - Bisque

The Generac 7043 22kW Air Cooled Guardian Series Home Standby Generator is a robust option for residential use, delivering high-quality 22,000 watts of power. It features True Power Technology, ensuring clean and stable power with less than 5% total harmonic distortion, making it safe for sensitive electronics. The generator operates on either natural gas or LP gas, providing flexibility depending on fuel availability.

The 200-amp NEMA 3R smart switch ensures whole-house protection, making it ideal for comprehensive coverage during power outages. Wi-Fi connectivity allows remote monitoring, so you can keep track of its performance and maintenance needs from anywhere, offering peace of mind even when you're not home. The electric start is user-friendly, and its fully enclosed design with automatic voltage regulation and overload protection enhances safety.

However, it's important to note that the unit is quite heavy, weighing 466 pounds, which affects portability. Installation should be handled by a licensed electrician, adding to the setup cost. Maintenance is somewhat simplified by the G-Force Engine, designed to reduce upkeep needs. The 5-year limited warranty offers long-term assurance. This generator is a strong contender for those seeking reliable, high-power output for their home.

Customer Highlights

A summary of real customer reviews to highlight what shoppers are saying!
Power Output (Wattage)
Though the generator is quite loud when running, it managed to power both 5-ton AC units and all normal house parts during summer testing.
Noise Level
Though the generator is quite loud when running, it managed to power both 5-ton AC units and all normal house parts during summer testing.
Start Type
The generator kicked off and ran just fine during unexpected power outages, automatically turning off once the power returned. It worked flawlessly during multiple outages, making it a very happy investment.
Maintenance and Service
Customer service is friendly, knowledgeable, and helpful, with real humans picking up within 5 minutes for each call.
#2

Generac Guardian 26kW Home Standby Generator, Durable All Aluminum, WiFi Enabled with G-Force Engine, Easy to Use, Whole House Power Backup, Smart Outage Solution - Bisque

The Generac 7290 26kW Air Cooled Guardian Series Home Standby Generator offers robust and reliable power for home use, making it an excellent choice for residential backup power. The standout feature is its substantial 26kW power output, which ensures it can handle significant electrical loads. It operates on natural gas or LP gas, giving you flexibility depending on fuel availability.

Additionally, the generator includes a Quiet-Test self-test mode that runs at a lower RPM to reduce noise and save fuel, which is a significant plus for maintaining peace and quiet around your home. The electric start system enhances ease of use, and the mobile Link Wi-Fi connectivity allows you to monitor the generator remotely, adding convenience and peace of mind. The 5-year limited warranty underscores its long-term reliability, and the unit is designed for easy installation by a certified and licensed electrician.

On the downside, its hefty weight of 518 pounds makes it less portable, so it's best suited for stationary home use rather than for those needing a mobile generator. Also, while it’s engineered to be quiet during tests, its noise level during regular operation may still be a consideration for some users. The maintenance and service alerts provided via Wi-Fi are helpful, but the initial setup may require professional assistance. Despite these minor drawbacks, its high output, reliable performance, and convenient features make it a solid investment for comprehensive home backup power.

Customer Highlights

A summary of real customer reviews to highlight what shoppers are saying!
Power Output (Wattage)
While the generator is quite loud up close, it effectively powers the entire house, including large appliances like 5-ton AC units.
Noise Level
While the generator is quite loud up close, it effectively powers the entire house, including large appliances like 5-ton AC units.
Maintenance and Service
For cold climates, consider purchasing a cold weather kit to maintain battery and oil filter warmth.
#3

Generac Guardian 24kW Home Standby Generator with 200 Amp Transfer Switch, Durable All Aluminum, WiFi Enabled with G-Force Engine, Easy to Use, Whole House Power Backup, Smart Outage Solution - Bisque

The Generac 7210 24kW Air Cooled Guardian Series Home Standby Generator is a robust solution for ensuring your home stays powered during outages. With a power output of 24,000 watts, it's capable of handling substantial energy needs. It runs on either natural gas or LP gas, giving you flexibility depending on your available resources. The generator's runtime will vary based on fuel type and load, but it's designed for long-term use with an efficient engine. One of its standout features is the Mobile Link Wi-Fi connectivity, allowing you to monitor the generator's performance and receive maintenance alerts remotely. This feature is particularly useful for peace of mind when you're not at home.

The inclusion of a 200-amp transfer switch means it offers comprehensive whole-house protection, seamlessly switching power sources during an outage. Installation should be done by a certified electrician, ensuring proper setup and safety. The start type is electronic, simplifying the process of getting the generator running. Maintenance is made easier with the 5-year limited warranty and reduced maintenance needs of the purpose-built G-Force engine. However, the generator is quite heavy at 455 pounds, making it less portable and more of a permanent installation.

This generator is built with high-quality materials and assembled in the USA, which speaks to its durability and craftsmanship. For those needing reliable, high-capacity backup power for their homes, this generator is a strong contender, though it requires professional installation and is not designed for portability.

Customer Highlights

A summary of real customer reviews to highlight what shoppers are saying!
Noise Level
The generator is too loud to converse next to while running, but it successfully powered both a 5-ton AC and the entire house during testing.

Buying Guide for the Best Generac Generators

When it comes to picking a Generac generator, it's important to understand your power needs and the different features that can make a generator more suitable for your specific situation. Generac offers a variety of generators, each designed to meet different requirements, from home backup power to portable power solutions. By understanding the key specifications and how they relate to your needs, you can make an informed decision and choose the best generator for you.
Power Output (Wattage)Power output, measured in watts, indicates how much electrical power the generator can produce. This is crucial because it determines what and how many devices or appliances you can run simultaneously. Generators come in different wattage ranges: low (up to 3,000 watts), medium (3,000 to 7,000 watts), and high (over 7,000 watts). For basic needs like running a few lights and small appliances, a low-wattage generator may suffice. For running multiple large appliances or whole-house backup, a medium to high-wattage generator is necessary. Assess your power needs by listing the essential devices you want to power and their wattage requirements.
Fuel TypeGenerators can run on various types of fuel, including gasoline, propane, natural gas, and diesel. The fuel type affects the generator's runtime, efficiency, and convenience. Gasoline is widely available but has a shorter shelf life. Propane and natural gas are cleaner and have longer shelf lives, with natural gas offering the convenience of a continuous supply if you have a gas line. Diesel is efficient and has a longer shelf life but is less common for residential use. Choose a fuel type based on availability, storage, and your preference for convenience and maintenance.
RuntimeRuntime refers to how long a generator can operate on a full tank of fuel. This is important for ensuring continuous power during outages. Generators with longer runtimes are more convenient as they require less frequent refueling. Runtime can vary based on the load and fuel type. For occasional use or short outages, a generator with a shorter runtime may be sufficient. For extended outages or continuous use, look for a generator with a longer runtime to minimize interruptions.
PortabilityPortability is a key factor if you need a generator that can be easily moved or transported. Portable generators are typically smaller, lighter, and equipped with wheels and handles. They are ideal for outdoor activities, job sites, or temporary power needs. Stationary or standby generators are larger and permanently installed, providing automatic backup power for homes or businesses. Consider how and where you will use the generator to determine if portability is a priority.
Noise LevelNoise level, measured in decibels (dB), indicates how loud the generator will be during operation. This is important for comfort and compliance with local noise regulations. Generators can range from very quiet (below 60 dB) to quite loud (above 80 dB). For residential areas or camping, a quieter generator is preferable to avoid disturbing neighbors or wildlife. For construction sites or remote locations, noise may be less of a concern. Consider where you will use the generator and choose a noise level that suits your environment.
Start TypeGenerators can have different start types, including manual recoil start, electric start, and automatic start. Manual recoil start requires pulling a cord, which can be physically demanding. Electric start uses a push-button or key, making it easier to operate. Automatic start is typically found in standby generators and activates automatically during a power outage. Choose a start type based on your preference for ease of use and the generator's intended application. For frequent or emergency use, electric or automatic start is more convenient.
Maintenance and ServiceRegular maintenance is essential to keep your generator running smoothly and extend its lifespan. Some generators come with features that make maintenance easier, such as low-oil shutoff, maintenance reminders, and easy-access panels. Consider the availability of service centers and replacement parts for the brand you choose. If you prefer minimal maintenance, look for generators with user-friendly features and good manufacturer support. Regularly check and follow the maintenance schedule to ensure reliable performance.

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