10 Best Generac Generators 2025 in the United States

The Generac 8917 GP18000EFI is a robust gas-powered generator suitable for residential use, especially for whole-home backup. With a powerful 18,000-watt output and 22,500-watt starting wattage, it can handle heavy loads and multiple appliances simultaneously. The electric start feature is convenient and user-friendly, eliminating the need for manual pulling.

One of its standout features is the COsense technology, which provides crucial protection against carbon monoxide, enhancing safety during use. Additionally, the generator includes TruePower Technology, which ensures a stable power supply for sensitive electronics, making it versatile for various applications. The large capacity fuel tank offers up to 9 hours of runtime, reducing the frequency of refueling during extended power outages.

The Generac 816cc EFI engine is designed for efficiency and performance, but being a fuel-powered engine, it requires regular maintenance like oil checks and changes to keep it in top condition. Portability is a significant plus, thanks to the heavy-duty, never-flat wheels and durable steel tube cradle, although the generator's substantial weight of 443 pounds might still make it a bit challenging to move around. Some drawbacks include its noise level common to gas generators, which can be quite loud, and the initial cost, which might be on the higher side. A point of note is its compatibility with a Homelink Manual Transfer Switch, making it an effective alternative to a permanent home standby generator. Ideal for homeowners needing reliable power backup, the Generac 8917 GP18000EFI offers a blend of power, safety, and portability, albeit with the usual maintenance requirements and noise levels associated with gas generators.

The Generac 7705 GP15500EFI portable generator is a robust option for those seeking reliable power for emergency backup or job sites. With a formidable 15,500 running wattage and 19,300 starting wattage, it is capable of handling substantial power needs. The 816cc Electronic Fuel Injection Engine ensures efficient performance, and the COsense technology adds a critical safety layer by detecting hazardous carbon monoxide levels.

Its 11-hour runtime is supported by a 5-gallon steel fuel tank, making it suitable for extended use without frequent refueling. The electric start feature simplifies operation, and the hour meter helps in tracking maintenance intervals, enhancing the generator's longevity. The low-oil level shutdown feature further protects the engine from damage.

Portability, although aided by heavy-duty wheels, might be challenging due to its substantial weight of 450 pounds. This model is 49-state compliant, ensuring broad usage applicability. Those needing a reliable and powerful generator for commercial or residential use will find this model a strong contender, though its significant weight should be considered.

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.