Top 8 Best Generators in NZ

When it comes to ensuring that you have a reliable source of power, especially in times of emergencies or when off the grid, having a quality generator can be a game-changer.

In New Zealand, where power outages due to weather events or other reasons can occur, having the best generator is essential for peace of mind. With a wide range of generators available in the market, choosing the right one can be overwhelming.

In this post, we will explore some of the best generators in New Zealand, highlighting their features, benefits, and how they can meet your power needs effectively. Whether you are looking for a portable generator for outdoor adventures or a standby generator for your home or business, we’ve got you covered with the top recommendations.


How to Choose the Best Generator for You

Choosing the best generator for your needs involves considering a range of factors such as energy requirements, fuel type, portability, noise level, and more. Here’s a comprehensive guide to help you make an informed decision.


Determine Your Power Needs:

Start by listing all the appliances and devices you want to power with the generator. Check the power consumption of each item, which is usually given in watts (W) or kilowatts (kW), and add them up to find out your total power requirement. Remember to account for starting watts (surge watts) which are higher than running watts for many appliances, especially those with electric motors.


Choose the Type of Generator:

Portable Generators: Suitable for recreational uses, job sites, and as a backup for home essentials during a power outage.

Inverter Generators: Provide clean power for sensitive electronics, are quieter, and are more portable but generally have less power.

Standby Generators: Permanently installed and automatically turned on during a power outage to supply power to your entire home or business. They are more expensive but much more convenient.


Fuel Type:

Generators can run on various fuels, each with its pros and cons.

Gasoline: Readily available but not ideal for long-term storage as it can degrade.

Diesel: Higher fuel efficiency, and longer shelf life, but the generators tend to be more expensive.

Propane (LPG): Clean burning, long shelf life, but may provide less power.

Natural Gas: Unlimited supply if you have a connection, but it requires a permanent installation.

Dual-Fuel / Tri-Fuel: Offer flexibility but may be more expensive upfront.


Consider Run Time and Fuel Efficiency:

Look at the fuel tank size and run time at a given load. The greater the tank size and the more efficient the generator, the longer it will run without needing refueling.


Evaluate Portability:

If you need to move the generator around, consider the weight and whether it comes with wheels and handles.


Noise Level:

Measured in decibels (dB), the noise level is a critical factor, especially in residential areas or camping. Inverter generators are typically quieter than conventional ones.


Check for Features and Outlets:

Prefer generators with features like automatic start, multiple outlets, fuel gauge, low oil shut-off, and a volt meter.


Safety and Compliance:

Ensure the generator has safety features such as circuit breakers and meets local emissions regulations. Look for certifications from organizations like the Environmental Protection Agency (EPA) or the California Air Resources Board (CARB).



Some generators require more maintenance than others. Consider how easy it is to perform routine maintenance like oil and filter changes.


Transfer Switch:

For a standby generator, you will need a transfer switch, which should be installed by a professional to safely connect the generator to your home’s electrical panel.

READ NEXT: Best log splitters | Portable Power Stations


The Best Generators NZ


1. Newman Generator Best Generator

The Newman Generator 6500W stands out as a compact and portable power solution, ideal for situations that require reliable energy on the go. Its considerable 25L fuel tank capacity allows for an extensive running time of up to 10 hours, minimizing the need for frequent refueling and ensuring consistent operation.

At the core of this generator is a robust 439cc engine, adept at delivering up to 6000 watts of power, making it suitable for a wide array of applications. The built-in low oil shut-off sensor serves as a safeguard, enhancing the longevity of the generator by preventing engine damage due to low oil levels.

Starting the generator is a breeze thanks to the easy-start system, eliminating the common frustration associated with ignition during urgent scenarios. Durability is further reinforced with a steel frame construction, which ensures that the Newman Generator 6500W can withstand the rigors of use in various environments.


2. TSB Gasoline Generator

TSB Gasoline Generator NZThe generator is an impressive fusion of portability and endurance, thanks to its lightweight aluminum wire construction. This feature not only facilitates ease of transport and storage but also contributes to its overall practicality. The 15L fuel tank complements this portability by offering prolonged operation times, reducing the disruption caused by regular refueling.

For environments where noise is a concern, this generator excels with its low noise level operation. This characteristic ensures it can be used in residential areas or during late hours without causing significant disturbance. Its 210cc 4-stroke air-cooled engine strikes an exquisite balance between efficient fuel consumption and reliable power output.

Power needs of various scales are met by the generator’s 3.0kW max power output, making it a versatile choice capable of running a range of appliances and power tools. This makes it an ideal addition to any home or worksite where efficient and unobtrusive power generation is valued.


3. Heron Petrol GeneratorPetrol Generator

The Heron 8.2kW /17HP Petrol Generator is a robust and efficient option for those seeking a reliable power source during outages or emergencies. Its compact design belies its strong output, ensuring that it doesn’t occupy excessive space while delivering substantial energy.

Ease of monitoring is a key aspect of this generator, facilitated by a digital multifunction display that keeps track of operational hours and output voltage. This user-friendly feature promotes better management of power usage and maintenance scheduling.

The inclusion of an AVR (Automated Voltage Regulator) system is a critical advantage, offering protection to connected electrical devices. It achieves this by maintaining a consistent voltage level, preventing fluctuations that could potentially cause harm, making the Heron generator a safe choice for powering sensitive electronics and heavy-duty appliances alike.


4. Deal Mart Petrol Generator

Deal Mart

The Deal Mart Petrol Generator is ideal for those seeking a balance between portability, dependability, and affordability. Designed for versatility, it’s a fitting choice for residential use or powering needs while on the move. At the heart of this generator is a 7.5hp single-cylinder 4-stroke engine that runs efficiently on petrol.

The convenience of use is greatly enhanced by the electronic ignition system, which ensures a hassle-free start. This feature is particularly beneficial during time-sensitive situations where quick power generation is crucial. Compactness is another attribute of the Deal Mart Generator, allowing for straightforward transportation to various locations without requiring significant storage space.

Equipped with a single-phase engine, boasting a 223cc displacement, and a fuel capacity of 15L, the generator is designed for sustained operation, minimizing the frequency of refueling stops. This combination of features makes the Deal Mart Petrol Generator a practical and easy-to-use power source that meets the needs of a variety of users.


5. Newman Generator 6500w 3 Phase 

Electric Start

This generator is a well-rounded, sturdy companion for those who require power without the commitment of a permanent installation. It’s been designed with portability in mind, featuring a compact frame that is easy to maneuver. The convenience of the electric start with a remote means it can be activated from a distance, adding a layer of ease to its operation.

Transportability is further enhanced by the included wheels and handle kit, making it ideal for occasional use when you need power at various locations. The generator operates on a three-phase system and is fitted with a reliable NGK spark plug, ensuring a smooth performance.

Functionality is key, with a voltmeter to monitor power output and a tough semi-enclosed steel frame that provides durability. Safety features such as voltage overload and low oil protection safeguard the generator and your appliances. Offering a variety of power outputs—three-phase 400V 32A and single phase 220-240V AC, 12V DC—and with a 25L fuel capacity, it delivers a continuous running time of 10 hours at 75% load. All of these robust capabilities come with a relatively quiet operation, with a noise level of 72db at 7 meters at 75% load, making it a considerate choice in noise-sensitive environments.


6. Hyundai Portable Generator 

Solar Battery

The Portable Generator Power Station Solar Battery Charger caters handsomely to the needs of the modern adventurer and those who seek a backup power option. With a significant 81600mAh battery capacity, the flexibility to charge via solar input, home outlets, vehicles, or USB, highlights its adaptability to various scenarios and environments.

Connectivity is at the forefront, as this power station is armed with a comprehensive array of ports including USB, USB-C, AC, and DC outputs, essentially acting as a central charging station for a wide range of electronic devices. The intelligently integrated LCD Display is a thoughtful addition that provides real-time battery monitoring, facilitating effective power management and planning.

Designed for versatility, eco-friendliness, and practicality, the power station is an indispensable tool not just for outdoor use or emergencies, but also for daily applications where additional power sources are required. Its multi-faceted charging options and ease of use solidify its status as a top-tier choice in portable power solutions.


7. Gentrax Inverter Generator

Gentrax 2.0KW

The Gentrax inverter generator is engineered to be a reliable source of power for a variety of situations, including home use during outages, as well as outdoor events like camping or tailgating. The convenience of petrol operation combined with the simplicity of an electric start facilitates quick and effortless activation.

Delivering a steady 1700 watts of continuous output, this portable power unit is capable of handling a broad range of electrical needs. Its 4.5L fuel tank capacity contributes to its endurance, offering up to 9 hours of uninterrupted operation, making it a dependable ally for longer-duration activities or as a backup power source.

Compact and efficient, the Gentrax generator is tailored for those who value a blend of portability, sustained performance, and the peace of mind that comes from having a steady supply of power at their fingertips.


8. EcoFlow RIVER Pro Portable Power StationPortable Power Station

The EcoFlow River Pro is a compact and robust portable power station designed to keep your devices powered while you’re mobile. Boasting a substantial 720Wh capacity, this unit provides ample energy for a variety of electronics. It’s outfitted with multiple outlets — 2 AC, 2 USB, and one 12V DC — to accommodate the charging needs of devices such as laptops, phones, tablets, and cameras.

An intuitive LCD screen grants immediate access to essential information, displaying the current battery level and estimated remaining runtime, which helps in planning your power usage. The EcoFlow River Pro offers a green charging option via solar input; it can fully recharge in 4.5 to 9 hours when connected to two 110W solar panels in parallel, depending on the sunlight conditions.

This power station neatly bridges the gap between portability and power, making it a top choice for professionals on the go, outdoor enthusiasts, and anyone in need of reliable off-grid power.



What is the best generator to run a house in NZ?

The best generator for a house in NZ is typically a standby generator, with popular choices being those from brands like Newman, Hyundai, and EcoFlow RIVER offering sufficient kW to cover household needs.

What is the best generator for a caravan in NZ?

For caravans in NZ, inverter generators are preferred for their quiet operation and portability. Models from Yamaha and Honda, such as the Newman, Hyundai, and EcoFlow RIVER are well-regarded options.

Which is the most reliable generator?

Hyundai and EcoFlow RIVER are often considered the most reliable generator brands, known for their durability, efficiency, and consistent performance across various models.