Best diesel generators for backup power.
Due to their dependability, durability, and fuel efficiency, diesel generators are a standard option for backup power. They are well-known for delivering continuous power production for prolonged durations, which makes them the perfect choice for use in isolated areas or during power outages where access to the power grid may be restricted.
Additionally, diesel fuel is more energy-dense than other fuels, which means that diesel generators can produce more power with less fuel. It makes them a cost-effective and efficient choice for backup power needs.
The best diesel generators for backup power will be covered in this post, considering things like power output, fuel efficiency, noise level, size and portability, and price.
Factors to take into account while choosing a diesel generator for backup power
To ensure you receive the most excellent diesel generator, consider several factors before selecting one for backup power. Some of the most important considerations include the following:
Power output requirements: The power output of a generator is measured in watts, and it is essential to choose a generator with a power output that meets your backup power needs. It would help if you considered the total wattage of the appliances and electronics you want to power during an outage and chose a generator with a power output that exceeds that amount by at least 20%.
Fuel economy: Diesel generators are renowned for their fuel efficiency, but to discover; the most effective model, it's crucial to analyze the rates at which various models consume gasoline. Over time, a generator with high fuel efficiency will cost you less than gasoline.
Noise level: Diesel generators can be pretty noisy, so it is essential to choose one with a noise level that is acceptable for your needs. Look for generators with noise levels below 70 decibels (dB) for residential use and below 60 dB for commercial use.
Size and portability: Consider the physical size and weight of the generator, as well as any portability features such as wheels and handles. A generator that is too large or heavy may be challenging to move or store, so choose one that is appropriate for your space and mobility needs.
Cost: Diesel generators can vary significantly in price, so it is essential to consider your budget when selecting one. Remember that a higher-priced generator may offer better features, durability, and reliability but may not be necessary for all backup power needs.
Top 5 diesel generators for backup power
Generator 1: Cummins Power Generation RS20A
The Cummins Power Generation RS20A is a powerful diesel generator with a reliable and efficient engine. This generator is designed for use in residential and commercial settings and can provide backup power to large homes and small businesses. The RS20A has a power output of 20 kilowatts (kW) and features an automatic transfer switch for a seamless transition to backup power during an outage.
Pros:
High power output for more extensive backup power needs
Automatic transfer switch for easy and seamless backup power activation
Efficient diesel engine for lower fuel consumption and longer run times
Quiet operation at 67 dB
Advanced diagnostics for easy maintenance and troubleshooting
Cons:
Higher cost compared to smaller generators
Large and heavy, which may make it difficult to move and store in smaller spaces
Overall, the Cummins Power Generation RS20A is reliable and efficient for backup power needs in residential and commercial settings. Its high power output and advanced features make it an excellent option for larger homes and small businesses that require a more powerful generator. However, its larger size and higher cost may not be necessary for all backup power needs.
Generator 2: Westinghouse WGen12000DF
The Westinghouse WGen12000DF is a dual-fuel generator that can run on gasoline or diesel, providing versatility and flexibility in fuel options. This generator has a power output of 12,000 watts (12 kW) and features a remote start key fob for easy and convenient activation. The WGen12000DF is designed for use in both residential and commercial settings and is equipped with an automatic voltage regulator to ensure stable and consistent power output.
Pros:
Dual fuel capability for added flexibility in fuel options
High power output for more extensive backup power needs
Remote start key fob for easy and convenient activation
Automatic voltage regulator for stable and consistent power output
Fold-down handles and never-flat wheels for easy portability
Cons:
Noisy operation at 74 dB
Higher fuel consumption on diesel compared to other generators
Large and heavy, which may make it difficult to move and store in smaller spaces
Overall, the Westinghouse WGen12000DF is a versatile and robust option for backup power needs in residential and commercial settings. Its dual-fuel capability provides added flexibility in fuel options. Its high power output and convenient remote start key fob make it a convenient and reliable choice for larger homes and small businesses. However, its noisy operation and higher fuel consumption on diesel may be drawbacks for some users.
Generator 3: Generac Protector Series RG08015ANAX
The Generac Protector Series RG08015ANAX is a powerful diesel generator that is designed for use in commercial and industrial settings. It has a power output of 8 kilowatts (kW) and features a durable and reliable Yanmar engine. The RG08015ANAX is equipped with a weather-resistant enclosure for outdoor use and is also designed with advanced monitoring and diagnostic features for easy maintenance.
Pros:
Durable and reliable Yanmar engine for long-lasting performance
Weather-resistant enclosure for outdoor use
Advanced monitoring and diagnostic features for easy maintenance
Automatic voltage regulation for stable and consistent power output
Multiple available fuel connections for added versatility in fuel options
Cons:
Lower power output compared to some other commercial-grade generators
Higher cost compared to some smaller generators
Noisy operation at 73 dB
Overall, the Generac Protector Series RG08015ANAX is a reliable and durable option for backup power needs in commercial and industrial settings. Its advanced monitoring and diagnostic features make maintenance easy, and its weather-resistant enclosure allows for outdoor use. However, its lower power output and higher cost may not make it necessary for all backup power needs, and its noisy operation may be a drawback for some users.
Generator 4: WEN DF1100T
The WEN DF1100T is a dual-fuel generator with various fuel sources, including diesel and gasoline. It has an 11,000-watt (11 kW) power output with an electronic start for simple activation. The automated voltage regulator that is a feature of the DF1100T, which is intended for use in residential and commercial settings, ensures stable and reliable power production.
Pros:
Dual fuel capability for added flexibility in fuel options
High power output for more extensive backup power needs
Electric start for easy and convenient activation
Automatic voltage regulator for stable and consistent power output
Wheels and fold-down handles for easy portability
Cons:
Noisy operation at 78 dB
Higher fuel consumption on diesel compared to other generators
Limited monitoring and diagnostic features for maintenance
Overall, the WEN DF1100T is a versatile and robust option for backup power in residential and commercial settings. Its dual-fuel capability provides added flexibility in fuel options. Its high power output and electric start make it a convenient and reliable choice for larger homes and small businesses. However, its noisy operation and higher fuel consumption on diesel may be drawbacks for some users, and its limited monitoring and diagnostic features may make maintenance more challenging.
Generator 5: Cat RP12000E
The Cat RP12000E is a powerful diesel generator that is designed for use in both residential and commercial settings. It has a power output of 12,000 watts (12 kW) and features a reliable and efficient Cat engine. The RP12000E is equipped with an automatic voltage regulator for stable and consistent power output and also features a low oil shutdown for added safety.
Pros:
Durable and reliable Cat engine for long-lasting performance
Automatic voltage regulation for stable and consistent power output
Low oil shutdown for added safety
Large fuel tank for extended run time
Wheels and fold-down handles for easy portability
Cons:
Noisy operation at 80 dB
Higher cost compared to some smaller generators
Limited monitoring and diagnostic features for maintenance
Overall, the Cat RP12000E is a reliable and robust option for backup power in residential and commercial settings. Its durable Cat engine ensures long-lasting performance, and its automatic voltage regulation and low oil shutdown features provide added convenience and safety. However, its noisy operation and higher cost may not make it necessary for all backup power needs, and its limited monitoring and diagnostic features may make maintenance more challenging.
Conclusion:
When choosing a diesel generator for backup power, there are several important factors to consider. These include power output requirements, fuel efficiency, noise level, size and portability, and cost. It's important to carefully assess these factors to determine the best generator for your needs.
After reviewing the top 5 diesel generators for backup power, we recommend the Cummins Power Generation RS20A as the best option. It provides a balance of power output, fuel efficiency, and portability, making it a versatile and reliable choice for both residential and commercial settings.
For those with higher power output needs, the Cat RP12000E offers a robust and durable option. The WEN DF1100T provides added versatility with its dual fuel capability, while the Westinghouse WGen12000DF offers a convenient and efficient standby power option. The Generac Protector Series RG08015ANAX rounds out the top 5 with its advanced monitoring and diagnostic features for easy maintenance.
Overall, it's essential to carefully consider your specific backup power needs and assess the features and benefits of each generator before making a decision. By doing so, you can ensure that you select the best diesel generator for your backup power needs.
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