Best Generators

When you can't get power from the grid, a generator can keep you connected. Whether you're looking for a portable generator, inverter generator or a home generator, there are important things to consider before plugging in, to protect both your personal safety and electronics. Continue Reading...

73 listings

Best Generator

Gentrax 3.5kW Camping Inverter
4.1 from 196 reviews

The $1, 889 Gentrax 3.5kW camping inverter offers up to 8 hours of run time, and allows you to charge both sensitive and smaller electronics like phones, as well as larger appliances like fridges.

A reliable power source
Affordable yet quality performance
Can take a few pulls to start
Honda EU20i
3.7 from 53 reviews

Latest review: Hired this generator for two days from Herc. Assumed it was a 2-stroke because it smoked so much (way worse than a lawnmower). It has two settings - smoky ('ECO', lol) and smokier! Just as well I

3rd Best Generator
Gentrax 2.5kW Camping Inverter

This Gentrax camping inverter offers a max AC output of 2.5kW and 8 hours continuous running time, for a reasonable price of $1, 200.

Cromtech CTG2500i
4.1 from 22 reviews

This small, highly portable 2.4kVA inverter generator is designed for both recreational and domestic use. It can be used for camping and caravanning, and for powering small - or a few - appliances at home in the event of a blackout.

Yamaha EF2400IS
3.9 from 16 reviews

As Yamaha’s self-professed bestselling generator for caravans, RVs and motorhomes, this 2400-watt generator can power appliances like ACs, fridges and toasters, as well as personal electronics like phones and computers.

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Honda EU10i
4.5 from 11 reviews

This little $1, 499 inverter generator is designed with a max power output of 1 kVA, and only weighs 13 kg - making it a convenient option if you only have a few electronics to power.

Redback RB4
3.4 from 20 reviews

Latest review: We've had two of these generators. The first one was was great until the 500-ish hour mark when it stopped dead and would not go at all. We couldn't pull-start it and when we tried using the starter

Ark ArkPak

Ark ArkPak

 · includes 3 listings
2.7 from 55 reviews

Latest review: Too many of us with the same problem.. we all purchased the ArkPak.. a very expensive piece of crap.. was stored ready to go camping so was never used.. only checked now and then for charge.. it has

Honda EU30is
3.8 from 10 reviews

Latest review: EU 30is, electric start, with pull start as well. I run off grid, work away 3 weeks, home 1 week. This generator is my power supply. Runs inverter 2.5kva split system aircon in sea container, in

Adventure Kings Enclosed 2.0 kVA Inverter Generator

Latest review: Biggest piece of crap ever , had a dodgy spark plug from new and has never started properly, always needs start ya fool to even get a cough from it , DO NOT BUY , DO NT RECCOMEND AT

ALDI Inverter Generator

ALDI Inverter Generator

 · includes 6 listings
2.5 from 42 reviews

Latest review: Ran it for 4 hours, had a short break then started it to then encounter smoke and flames from the electronics. No response from Support - I've tried to contact them for 4

Genpower GX12025i 8.4kVA
3.9 from 9 reviews

Latest review: Starts frst go and fires up the whole house with no flat spots.runs all the houshold appliances ,tellys,computers and all the l.e.d lighting.runs continuously without cutting out for at least 6

Kipor GS2600 / GS2600H 2.6 kVA

Kipor GS2600 / GS2600H 2.6 kVA

 · includes 2 listings
2.8 from 21 reviews

Latest review: I have now owned this genset for six years. It does not undertake a huge workload, but probably typical of a lot of these smaller units. I was a little reluctant to buy it originally because of the

Kipor GS1000 1 kVA
4.0 from 7 reviews

Latest review: This unit has been in use for over 6 years - it had a life keeping up batteries on board a yacht running 1 to 2 hours nearly each day for 2 years a holiday for 1 year -and the last 3 maintaining a

Ryobi 1000 / 2000W Inverter

Ryobi 1000 / 2000W Inverter

 · includes 2 listings
2.7 from 15 reviews

Latest review: 2000 watt Ryobi generator very poor power out of it wld not even run a small microwave. Just over 2 years old appx. 50 hrs on wld not start big money to get it fixed. Never buy another Ryobi piece

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Westinghouse WHXC2400i
4.0 from 6 reviews

Latest review: Bought the Westinghouse 2400i in may 2020, it starts o k takes only one or two pulls, sometimes three, no problem. Delivers about 2000 watts of power but not for long, than it cuts off. When on idle

Genpower SV5000
5.0 from 4 reviews

Latest review: Very quite, and light in weight, does all the things I need it to do very happy with it can’t wait to go camping and really give it a work out

Kipor KGE2500X / KGE4000X

Kipor KGE2500X / KGE4000X

 · includes 2 listings
5.0 from 4 reviews

Latest review: I bought mine 10 years ago - its now done 4000 hours. Starter rope broke at about 1500 hours, took a while to find a rope strong enough and narrow enough to fit, but that has been the only "can't

Yamaha EF2000iS
3.4 from 7 reviews

Latest review: I bought my ef 2000is for the blackout that lasted two weeks after the mount Dandenong storms in June this year. And again this October.It won't power the world but it will get you out of a jam

Fuji Micro F6200RI
2.3 from 15 reviews

Latest review: Ran ok for about the first 20 odd hours then it would crank and not start with remote unless manual choke was used. Always used clean fuel. After servicing and difficulty changing spark plug

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man pull starting gas generator for camping

How do generators work?

Generators work by converting mechanical energy into electrical power. They do this using two main parts. An internal combustion engine uses petrol, diesel or propane fuel, and powers an alternator, which produces an AC current that provides the electricity.

Why would I need a generator?

If you need back-up power at home, you can buy a generator for blackouts. This means you can switch on some lights and keep the fridge running even if the power lines are down.

The second main use of generators is as a portable power source while camping and caravanning. Inverter generators are handy as recreational or camping generators. They let you charge selected appliances and devices like your phone or laptop, even when you’re off grid.

You can also get generators for commercial and industrial use, but these are beyond the scope of this guide.

Camping and caravanning

If you’re packing a generator for a portable power source on your adventures, a portable inverter generator for camping is the best pick.

What is the difference between a generator and inverter generator?

A conventional generator or regular portable generator is also known as a single-phase generator. That’s because the alternator provides AC power that’s ready to use. This is the type of AC power that electricity companies provide to homes on-the-grid.

An inverter generator, on the other hand, is also known as a three-phase generator. It uses the alternator to produce AC power, but then converts this into DC power using a microprocessor, and then back into AC power. This has a number of advantages in a camping scenario, with relatively few downsides.

Pros

Inverter technology provides a clean, safe source of power that won’t damage sensitive personal electronics like phones and laptops.
They operate quietly, making them suitable for more populated campsites.
Small and lightweight, inverter generators are more travel-friendly than your standard portable generator.
They're more efficient than conventional portable generators, and produce less emissions.

Cons

Restricted in power output, many inverter portable generators won’t provide much more than 2,000 watts of power - inadequate to power large set-ups.
Can be expensive, necessitating frequent use to get your money’s worth.
They use a battery that needs to be charged using a 12V outlet, solar power or mains power.

Home back-up power supply

These conventional generators can be either portable or stationary generators. When properly set up, either of these will be capable of providing emergency power for your home when you need it. (An inverter generator isn’t suitable for home use, however).

Portable generators for home use

You can plug an extension cord into selected home appliances, to connect them to the generator. You don’t need to connect the generator to the main electrical switchboard.

However, using a portable generator for home use is generally not considered an effective long-term solution. Portable generators used to power a home can cause up to 25% total harmonic distortion, when 6% THD is considered the acceptable limit for a smooth current.

Pros

An affordable solution if power outages are rare in your area, or you’re only powering a few small appliances.
A transfer switch must be installed by an electrician to keep electricity safe - which makes it more expensive.

Cons

Clean power isn’t reliably available for your home using a portable generator, as the AC signal can become distorted easily.

For the power to be safe, you’ll also need to have a transfer switch installed by a licensed electrician.

A transfer switch ensures that the house won’t accidentally get electricity from both the generator and mains power at the same time, once the power comes back on. This overload of electricity damages appliances, and poses a fire or electrocution risk.

  • An automatic transfer switch instantly connects the generator to your house when there’s a power outage, and disconnects it again when the electricity comes back on. Without it, the generator keeps feeding power to your house along with mains power. This causes an overload of electricity that can damage appliances, as well as bring a risk of fire and electrocution.
  • A manual transfer switch does the same job, but you’ll have to remember to manually turn it on and off before and after a power outage.

Stationary or permanent generators

If you're asking the question, 'which generator is suitable for home use?' generators that are made to be permanent generators for home standby use are better for long-term use than portable generators. They are usually powered by natural gas - mains gas or LPG.

Pros

These have a built-in automatic transfer switch. You won't have to turn the generator on and off when there's a blackout.
Generally purpose-built to be the right size to power your heavy-duty household appliances.
A natural gas power source doesn't need refuelling.
If you have solar panels, solar energy can be stored in a generator.

Cons

While they are heavy-duty and reliable, standby generators are expensive, especially when you add on installation costs.
Can be tricky to find the right place to put it - it should be outdoors in a well-ventilated spot, but not left exposed to the elements where it can get wet.

What size generator will I need?

A generator’s size is measured in kVA, which refers to the maximum amount of power it can provide.

To calculate the kVA you need, follow these steps.

  • Find out the wattage of each of the appliances or devices you want to power using the generator at the same time.
  • Add up all these wattages. Include both the starting watts (if provided) and running watts. Some heavy-duty appliances have a start-up wattage four times that of the running wattage.
  • Calculate the total wattage, then divide by 1, 000 to get the kW needed, e.g. 3000 watts is 3kW.
  • The kW divided by the power factor is the kVA you need. For example, if the power factor is 1, then the kVA required to power 3kW worth of appliances is 3kVA (3kW divided by a 1 power factor).

It’s always better to have extra watts for leeway when picking a generator size. This allows for small surges in the current.

What else to look for in a generator

Fuel capacity

If you’re out and about, you don’t want to be preoccupied with constantly refuelling your petrol generator. Check the tank capacity, and divide this by how much petrol is used per hour. This will tell you how many hours you can go until the petrol runs out.

Continuous running time

If the generator you want doesn’t have specs provided for petrol usage per hour, the continuous running time gives a rough indication of how long you can go before refueling.

Note that long running times, e.g. 9 hours for small inverter portable generators, are usually prescribed by manufacturers based on Eco mode. Eco mode may have special conditions, for example that you can only use it at a quarter of the maximum power load.

Portability

If you are taking your generator with you on-the-go (e.g. for camping or caravanning) portability is especially important. This is influenced by the weight, and any handles or a trolley to make it more ergonomically friendly.

Clean electricity

Some electronics, like personal electronics, are frequency sensitive. This means that if the power supply is not smooth, and fluctuates, they can be damaged as a result.

An inverter generator naturally cleans up the electricity with its 3-phase generator system. Pure sine waves make the current even safer for sensitive electronics. Power does not surge unexpectedly, and the inverter will match the wave of electricity as closely as possible. Look for pure sine wave technology, rather than modified sine waves, which aren't the same.

Safety features

These are really important in a generator, when you’re dealing with high voltages. At worst, lack of safety precautions can result in electric fires and electrocution.

Important features include a manual or automatic transfer switch, overload protection - disconnects the power if the combined wattage of electronics exceeds the maximum load; surge protection - protects electronics from voltage spikes, and waterproofing - which is especially important for home standby generators outside.

Price

Generators do not come cheap. However, due to the safety risks outlined above, this is not something you want to skimp out on, as it's not worth the danger to personal safety, or the cost of replacing expensive whitegoods if they get damaged.

An inverter generator that’s $400 would be considered affordable, but they are often pricier, and can be thousands of dollars. A home backup generator will start at around $2, 000 for a small, air cooled generator, up to $15, 000 for a large capacity water-cooled generator. This doesn’t include installation costs.

The bottom line

When buying a generator, ultimately you should balance convenience, capability and cost. The generator should be easy to use for the purpose you bought it for, capable of safely powering all your appliances and devices without risk, and worth its price for long-term use. If all these boxes are ticked, power on and read some reviews to find the right generator today.