Last Updated on September 6, 2023 by Pro Handyman Australia – Editorial Team
When it comes to reliable power solutions, a diesel generator stands out as one of the most efficient and long-lasting options available. Whether you’re dealing with frequent power outages, running a construction site, or planning an outdoor event, a high-quality diesel generator can make all the difference. This is particularly true in Australia, where the climate and conditions can be quite demanding.
But with numerous brands and models flooding the market, how do you make an informed choice? In this comprehensive review, we will guide you through the top picks for the best diesel generators in Australia, breaking down their features, performance, and value for money.
Our Choice for:
- Best Diesel Generator for Commercial Use
- Best Customizable Diesel Generator
- Best Portable Diesel Generator
- Best Versatile Diesel Generator
- Best Efficient Diesel Generator
Genpower GXS14000D 8.4kW: A Robust Choice for Commercial Needs
Power Output and Efficiency
The Genpower GXS14000D touts an impressive peak output of 8.4kW and a continuous rated output of 6kW, making it highly suitable for commercial use. While the peak output is suitable for initial heavy loads like motor startups, the ‘Continuous Rated Output’ is a more realistic metric for long-term planning. With a single-cylinder, 4-stroke, 460cc diesel engine that cranks out 13HP, this generator offers a sturdy blend of power and efficiency.
Electrical Outputs
Six single-phase 240V AC outputs and a 12V DC output make this generator versatile in terms of connecting multiple devices. However, sensitive electronic equipment should only be connected with a proper surge protector due to power fluctuations.
Voltage Regulation and Safety
The unit features a reliable single-chip digital AVR (Automatic Voltage Regulation) that stabilizes output voltage. For safety, the Genpower has fail-safe features like overload protection, low-oil shutdown, and over-temperature engine protection, ensuring peace of mind during operation.
Fuel Efficiency and Runtime
The generator’s fuel consumption rate is 280g/kWh, and it runs on commercially available diesel, making it a straightforward choice for those not wanting to deal with specialized fuels. The 15L fuel tank allows for 4 hours of operation at 100% load and extends to 6 hours at 50% load.
Noise Level and Enclosure
The noise level at 7 meters is 74dB, which is average for a generator of this size but not exactly ‘super silent’ as advertised.
Additional Features
It comes with two electric start keys and a toolkit, but it’s important to note that engine oil isn’t included, so that’s an additional purchase. Also, the generator requires professional electrical termination to your Distribution Board (DB).
Pros:
- High power output suitable for commercial use
- Multiple electrical output options
- Built-in safety and voltage regulation features
- Decent fuel tank capacity for longer run times
Cons:
- Not as silent as claimed
- Requires professional electrical termination
- Does not include engine oil
While the Genpower GXS14000D lacks in some features like true silent operation, its strong power output, and robust safety features make it a noteworthy contender in the Australian market. It appears to be designed with commercial utility in mind and, therefore, may not be the ideal choice for small residential needs.
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ANSHUL 7.5 KW Water-Cooled Diesel Generator: Customizable Power Solution
Engine and Power Output
The ANSHUL 7.5 KW generator comes equipped with a single-cylinder, 8HP engine with a bore size of 87 mm. It delivers a 7.5 KVA/7.5 KW power output at a single-phase voltage range of 230 to 415V. This makes it adaptable to various settings, from construction sites to temporary outdoor events.
Efficiency and Fuel Consumption
The fuel consumption rate of 200 grams/kW/hr at 70% load is reasonably efficient and aligns well with industry standards. The water-cooled mechanism is especially useful for long hours of operation, reducing the risk of overheating.
Electrical Components and Materials
This unit boasts a 100% copper alternator with Aluminium H-class insulation, making it durable and efficient. Components like the MICO (Bosch) fuel injection pump and NBC/SKF bearings suggest high-quality engineering, focused on longevity and reliability.
Customization Options
One standout feature is the customer’s ability to modify their order according to specific requirements, which can be a significant advantage for specialized needs. This shows the manufacturer’s flexibility in meeting diverse customer demands.
Noise Level
The set is explicitly stated as “non-silent,” so expect higher noise levels during operation, which could be an issue in noise-sensitive environments.
Pros:
- Efficient water-cooling system for prolonged usage
- High-quality components for longevity and reliability
- Customizable order for specialized needs
- Competitive fuel consumption rates
Cons:
- Not a ‘silent’ generator, potentially limiting its usability in quieter settings
The ANSHUL 7.5 KW water-cooled diesel generator set offers reliable performance with the flexibility for customization, making it a suitable choice for various commercial applications. However, the non-silent nature and lack of clarity about included accessories might be points of consideration.
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Jai Enterprises 5 KW Non-Silent Diesel Water-Cooled Generator: Compact Yet Powerful
Power and Voltage
Jai Enterprises’ 5 KW diesel generator offers an output voltage of 415 Volts. For its size and weight (80 kg), the unit packs a decent punch in terms of wattage, being well-suited for small to mid-sized applications.
Portability
The unit is described as portable, which is a strong selling point for those who need power on the go. Weighing in at 80 kg, it’s light enough to be moved around but robust enough to handle various tasks.
Water-Cooling System
The water-cooled feature is a plus, enhancing the generator’s performance and durability, especially under extended use. This cooling method is generally more efficient than air-cooled systems, making the unit ideal for long hours of operation.
Noise Level
This is a non-silent model, which is a critical factor to consider for those planning to use it in residential areas or quiet environments. While the generator is portable and can be moved, its noise level could be a limiting factor for some users.
Build Quality
No specific mention of the materials used for construction or internal components is a minor red flag. For long-term investment, understanding the build quality is crucial.
Pros:
- Portable design for easy transportation
- Efficient water-cooling system
- Adequate wattage for varied applications
- Suitable for 415V electrical systems
Cons:
- Non-silent, may not be ideal for noise-sensitive environments
- Lack of details about build quality
The Jai Enterprises 5 KW generator offers an excellent blend of portability and power, backed by the efficiency of water cooling. However, the non-silent operation and lack of details on build quality and what’s included may require potential buyers to consider these factors closely.
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ANSHUL 7.5 KW Air-Cooled Diesel Generator Set: A Workhorse for Versatile Needs
Power Output and Efficiency
The ANSHUL 7.5 KW generator delivers a robust 415 volts and operates at 1500 RPM, offering ample power for multiple applications. Its fuel consumption is 200 grams/kw/hr at a 70% load, making it a relatively efficient choice in the diesel generator category.
Build Quality and Components
The generator features an alternator with 100% copper and aluminium H-class insulation, along with quality bearings from NBC/SKF. The MICO (Bosch) fuel injection pump and EN9 connecting rods suggest longevity and reliability. These features indicate the manufacturer’s commitment to quality, which sets this generator apart from many competitors.
Cooling Mechanism
Unlike its water-cooled counterparts, this unit opts for an air-cooled system. Air cooling is generally easier to maintain but can be less efficient in extreme conditions, which may make it less suitable for prolonged heavy-duty use.
Customizability
The product description notes that customers can modify their orders according to specific requirements. While customizability is a rare feature in this product range, it’s essential to note that modifications would likely affect performance metrics.
Noise Level
The unit is non-silent, so if noise is a concern for your setting, you may need to consider this factor seriously.
Pros:
- Robust power output suitable for various applications
- Quality components for longer service life
- Customizability offers adaptability for specific needs
- Fuel-efficient for its size and capacity
Cons:
- Non-silent operation may limit its usage in quiet environments
- Air-cooling system may not be ideal for extreme or long-duration use
In summary, the ANSHUL 7.5 KW Air-Cooled Diesel Generator Set is a high-performing, customizable, and well-built option for those who can tolerate a bit of noise and are not running the generator in harsh conditions for extended periods.
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Briggs & Stratton P4500 Power Smart Series: A Reliable and User-Friendly Inverter Generator
Performance and Power
With 4500 starting watts and 3700 running watts, the Briggs & Stratton P4500 provides ample power for RV and campsite use. The inverter technology assures smoother, cleaner energy output, making it ideal for powering sensitive electronics.
Convenience and User Interface
The generator starts easily with a push-button electric start and an automatic choke, a welcome feature for users who dread manual starts. A multifunctional display panel keeps track of power usage, fuel level, and run time, acting as your energy dashboard.
Safety Measures
The unit is equipped with CO Guard carbon monoxide shutdown technology, a vital safety feature that auto-shuts the generator if CO levels become dangerously high.
Portability and Design
Weighing just over 52 kg and featuring a telescoping handle, the generator offers excellent maneuverability. The protective shell minimizes noise—proven to be 60% quieter than Briggs & Stratton’s standard generator.
Outlet Variety and Runtime
The unit provides an impressive array of power outlets: four 120V, 20A outlets, a 120V, 30A RV outlet, and two USB ports. Coupled with up to 16 hours of run time at a 1/4 load, this generator is built for sustained, diverse use.
Pros:
- Efficient performance with smooth power output for sensitive electronics.
- User-friendly features like push-button start and a multifunctional display panel.
- Enhanced safety features, including CO Guard technology.
- A range of power outlets to keep multiple devices running.
- Long runtime and efficient fuel use.
Cons:
- May not be suitable for larger power needs, given its 3700 running watts.
- The 3-year limited warranty is competitive but not exceptional.
The Briggs & Stratton P4500’s robust power, coupled with user-centric design choices and safety features, makes it a top pick for both recreational and emergency use. With its well-rounded performance metrics, it is an excellent investment for mid-range power requirements.
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Westinghouse iGen2200 Portable Inverter Generator: A Compact Powerhouse for Home and Leisure
Power Output and Efficiency
Boasting 1800 rated watts and 2200 peak watts at less than 3% THD, the Westinghouse iGen2200 offers a robust yet clean power source. Its 4-stroke OHV Westinghouse engine automatically adjusts to produce only the power you need, enhancing fuel efficiency.
Noise Level and Fuel Consumption
Operational noise is extremely low, at 52 dBA, which is quieter than average conversation levels. This feature makes it ideal for residential areas or camping sites. Its “Economy Mode” coupled with a 1.2-gallon gas tank ensures up to 12 hours of run time, making it one of the most fuel-efficient units in its class.
Portability and Design
Weighing a mere 24 kg and equipped with a built-in carrying handle, the unit epitomizes portability. Despite its compact size, it houses two 120V 20 Amp outlets and two USB outlets, offering versatility for various power needs.
Safety and Compliance
The generator comes with a low oil shutdown and overload protection, adding layers of safety for users. It is EPA and CARB compliant and backed by a 3-year limited warranty.
Parallel Capabilities
The unit is parallel capable, meaning you can combine it with other compatible Westinghouse inverter generators for increased power. This is especially useful for users with larger energy needs.
Pros:
- High efficiency with less than 3% THD for clean, stable power.
- Ultra-quiet operation suitable for community-friendly use.
- Lightweight and easy to carry.
- Multiple outlets for versatile power options.
- Safety features including low oil shutdown.
Cons:
- Limited fuel capacity may require refilling on longer jobs.
- Parallel capability requires a separate Westinghouse parallel cord, not included in the box.
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Generac RD01523ADAE Protector Series: Robust and User-Friendly Diesel Standby Generator
Performance and Efficiency
Generac’s RD01523ADAE is no lightweight, offering an impressive 15,000 watts of power—adequate for both residential and business needs. The True Power Electrical Technology ensures a stable and clean energy supply, ideal for sensitive electronics. It operates on diesel, which is generally more energy-dense than other fuel types.
User Interface and Control
One of the standout features is the Two-Line LCD Multilingual Digital Evolution Controller. This allows easy monitoring of the generator’s status and breaker position through an external window, reducing the need to open the enclosure. The multilingual interface is a thoughtful inclusion, making it more accessible to a broader range of users.
Durability and Build Quality
The aluminum enclosure is not only sound-attenuated but also UL 2200 listed, promising both quiet operation and durability. Given that it comes with a 5-year limited warranty, this unit seems built to last.
Advanced Features
The Isochronous Electronic Governor maintains precise frequency and voltage regulation, a feature usually reserved for higher-end models. The Smart Battery Charger is another boon, ensuring your battery remains ready for action.
Pros:
- High power output for versatile applications.
- Clean and stable energy ideal for sensitive electronics.
- Advanced control features with multilingual support.
- Durable and quiet aluminum enclosure.
- 5-year limited warranty.
Cons:
- Quite heavy at over 650 kg, requiring a sturdy foundation for installation.
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Introduction to Diesel Generators
Diesel generators are a staple for backup power solutions, both in residential and commercial settings. Unlike their gasoline counterparts, they offer better fuel efficiency and are often designed for longer run times. In Australia, where power outages can be frequent due to extreme weather conditions or remote locations, having a reliable diesel generator can make the difference between persevering through an outage and suffering significant losses.
Key Features to Consider
When shopping for a diesel generator, it’s essential to look at several key features that will determine its efficiency, usability, and suitability for your needs. Top among these are wattage and fuel efficiency. A higher wattage means the generator can power more or bigger appliances. Fuel efficiency, often measured in run-time per litre of diesel, is a clear indicator of how economical the generator will be to operate.
Noise level is another significant factor, particularly for residential areas or public events. Newer inverter technology has led to quieter diesel generators, so look for those if noise is a concern.
Portability and Design
One of the design aspects that contribute to a generator’s ease of transport is its weight and dimensions. In Australia’s diverse geography, from coastal cities to Outback communities, portability can be crucial. Look for models that come with wheel kits, handles, or even lifting eyes if the generator is particularly heavy.
Some generators also come with rugged design features that make them more suitable for outdoor or challenging conditions, like weather-resistant coatings or reinforced frames.
Starting Mechanism
Generators typically come with two types of starting mechanisms: manual and electric start. Manual starts require pulling a cord to crank the engine. It’s generally reliable but can be physically demanding. Electric starts, on the other hand, usually involve the push of a button, making them more user-friendly but reliant on a battery, which can fail if not maintained.
Both have their pros and cons. Manual starts are often considered more reliable in the long term and don’t have the additional failure point of a battery. Electric starts offer ease of use and quick power-up but might require a battery replacement down the line. Choose based on your comfort level with physical exertion and maintenance tasks.
FAQ Section
What are the advantages of a diesel generator over a gasoline generator?
Diesel generators typically offer better fuel efficiency, which means they can run for a longer period on the same amount of fuel. They also generally require less maintenance than gasoline generators.
What should I consider when it comes to wattage?
The wattage you need depends on what you plan to power with the generator. Make a list of essential appliances or equipment and add up their wattage requirements. Always go for a generator with slightly more wattage than you calculate you’ll need, to account for power surges.
Is noise level important?
Yes, especially if you plan to use the generator in a residential area or for extended periods. Newer models with inverter technology are quieter than traditional generators.
How does the starting mechanism affect my choice?
Generators come with manual or electric start options. Manual starts are generally more reliable but require physical effort. Electric starts are easier but rely on a battery, which can fail if not maintained.
How important is portability?
If you intend to move the generator between different locations, consider its weight, dimensions, and whether it comes with features like wheel kits or handles for easier transport.
What does “fuel efficiency” actually mean for a generator?
Fuel efficiency is generally measured by how long the generator can run on a given amount of fuel. Look for models that can run for extended periods on a single tank of diesel.
What should I look for in terms of safety features?
Safety features like automatic shutdown when low oil levels are detected or if there’s a risk of overheating can prevent damage to the generator and any connected appliances.
Conclusion
Choosing the best diesel generator involves considering a variety of factors such as wattage, fuel efficiency, noise level, portability, and starting mechanisms. Each feature comes with its own set of pros and cons that align differently with individual needs. Whether you’re looking for a long-lasting power source for your business or a reliable backup for home emergencies, there’s a diesel generator out there designed with your requirements in mind. By understanding the key features and how they match up to your specific needs, you can make an informed decision that ensures you’re never left powerless.