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  Power (kW) & Energy (kWh) Explained


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Calculate Generator Running Cost

Use Waste Vegetable Oil as Fuel

Greenhouse Gas Calculator

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Silenced Diesel, Petrol & Bio-Gas Generators

If you do NOT have an Automatic Mains Failure (AMF) switch fitted to your premises, you MUST first turn OFF all mains fuse's, and preferably remove them, even if only testing your generator, removing the main fuses should be done when switched OFF (Not under Load), ONLY once that is done, then it is safe to test your equipment.  Then, people working on the state grid will not be in DANGER from electrocution from your tests!

How do I Calculate the correct size Generator for our power consumption ?

Click Here to Calculate different Appliances & see the Capacity Generator required !

See the Fuel Generators we recommend below:

Why Pay $400 a year to remain Grid Connected ?

When all Energy Retailers & Distributors can easily be replaced by a $1'000, 3.6kW, 58dB Silenced Genertor shown below!

A smart investor should be looking to purchase Large Capacity Energy Storage, then a Generator will Rarely need to be started, other than during extended Bad weather.

Off-Grid Customers commonly say there Generator only run for a few hours with 20kWh energy storage.

Why purchase a Fuel Generator ?

To Blackout-proof your premises OR to become Energy Independent as Generating your own Back-up Power, is usually the last step after Energy Storage purchase.

You might be thinking why ? The answer is simple, Quality LAB Batteries cost $250kWh (Lithium $500kWh) and SAVE what would normally un-used or Wasted Energy, that can be sold to the Retailers, where Generators cost from $300kW and Cost money to Operate, however a generator will also be Charging the batteries, reducing the running cost (...see FREE Fuel section below)


So, Assuming you already have Solar & Grid Connected. It is a lot Cheaper & Smarter to Store the energy you Generates than sell it for a feed-in tariff, Off-Grid people know this & most already have Energy storage.

If you are Grid connected and Don't have energy storage, a Generator Fuel Cost and the State Grid Power Rate is 300% more than any FIT rebate.

With Energy storage, a Generator will ONLY need to start when your battery energy gets low, and that will usually be for a short time early in the morning.  Energy storage only captures what would normally be waster energy !

A Hybrid inverter with an 'Auto Generator Start' (AGS) function, would ONLY be needed to charge or top-up your Battery bank to a pre-programmed time.

Diesel generators are cheap to purchase and operate, you don't actually need Solar, Aqua or Wind generation if you have a Diesel generator and Battery bank.  However a battery bank is the critical investment with all Off-Grid Solar & Gen-Set System, as mentioned above, it allows you to operate the Generator for short periods, providing maintenance free operation for many years, other than oil and filter changes.

FACT: In 2017 most Australian customers paid over 28 c/kWh for Electricity 24/7 (excluding off-peak), those that receive the measly solar feed-in Tariff (Rebate) of ONLY 6~8 c/kWh for there excess power - get ripped off after-sunset, as they get slugged with the full electricity rate of 28 c/kWh, that's over 300% more than the feed-in Tariff they receive!  So, who is really been taken for a ride ?

If you have Energy storage & Hybrid inverter, this is where a Diesel generator comes into play, as the auto-start switching gear will start & stop a generator as you program it, NOW you have the option to disconnect from the state grid, and save you the $320 year ($80 quarter) Connection Fee !

This 3.5kW Gen-set is super quiet (58dB), and weighs just 38kg, this unit will charge any battery bank and accomplish the same power production in approx. 1~4 hours depending on your battery bank size, and your daily kW consumption, the only cost will be Fuel.


A Diesel Generator engine can run on Clean Filtered/Process Waste Vegetable Oil (WVO) used as fuel.

A Petrol Generator engine can Run perfectly on Bio-Gas, harvested FREE from a small 3m3 organic Bio-Digester, & in-turn the bio-gas can be compressed into any LPG tank for better storage.

So, Stop what you are doing and grab your Power bill;

  1. Go here and Enter your Power bill details, to INSTANTLY see your INVESTMENT Pay-Back Period.
  2. To get a FREE Power evaluation, Fill in this Form & we will get back to you ASAP !
  3. This calculator Instantly evaluates Independent Power Grid-v-State Grid Cost.

We ONLY recommend a Generator be used for these reasons;

  1. If your Energy Storage voltage warns of Low voltage & all other form of generation fails !
  2. Best if your Generator runs on FREE GREEN FUELS from either;
    1. BioGas Harvested from a Bio-Digester, to run a 4stroke Gen-Set Petrol engine.
    2. Waste Vegetable Oil (WVO) used to replace Petrochemical Diesel, as WVO has far Less Pollution!
  3. If used with Battery Storage: A small 4.5kWh Generator should Not need to operate for more than a few hour at a time, and that commonly will only be early in the morning or during sustained bad weather, where generation by Wind & Solar has stopped.

Is 1kW equal to 1kVA ?

In the case of 100% efficiency 1kVA = 1kW, which is an ideal case, but is not actually possible due to losses, so in a working environment 1kW is not equal to 1kVA as follows.

kW, is the amount of "Actual power" an electrical system has. This shows you how much power is being converted into useful, working output.

kVA, on the other hand is the measure of "Apparent power".

So, kW is how much power you can work with, kVA tells you how much is being used in the system overall, commonly the approx. value less .80.

The total losses in a Transformer depend upon volt-ampere (VA) only, and Not on the power factor of the load. That is why the transformer rating is given in kVA and not in kW.

For an average home, the required KVA should be at least 3 KVA ~ 5 KVA. With this power in a generator, you will comfortably be able to run all your household appliances directly off the Generator.

However, if you are Only using a Generator to Charge Energy Storage, nearly any Generator will work, as the Load is commonly drawn of the Energy Storage, whilst the Generator is operating.

We highly recommend you purchase either of the 6kW Solar Generator or the Red 4.5kW Fuel Generator below, and if you set-up a Micro Power Grid with 20kWh of Energy Storage, you would rarely need to start a Fuel generator to keep your premises operating during extended Bad weather!

NB: All single phase Power is calculated by multiplying 240V x 15A =3'600W (3.6kW), however using a larger generator allows for Faster Charging of Large capacity Energy Storage!

800W Generator.

4.2kW Generator.

4.5kW Generator.

AU$450, 800W, Air cooled, 1 cylinder, Silenced (56dB @7mt), Petrol or  Convert it to Vapour Bio-Gas, just like LPG, this little Trojan can operate Whisper Quiet all day long on a few litres of fuel.

AU$1'450, 4.2kW, Air cooled, 1 cylinder, Silenced (58dB @7mt), Petrol or convert to Vapour LPG or Bio-Gas Fuel yourself.

4.50kW Silenced 58dB @7mt, forced Air Cooled, Economic Petrol Generator.

6kW SOLAR Generator.

6kWh Diesel Generator.

8kWh Diesel Generator.

6kWh SOLAR Generator !

Totally Silent as operates of a 5.12kWh LiFePO4 Battery, Charges by Solar, Wind Turbine, Vehicle, Fuel Generator or State Grid.

AU$1'950, 6kW, 1 cylinder, Air cooled Silenced (74db @7mt) Diesel Generator, backed by an *Australian 500 hour or 1 year warranty.

8kW, Water cooled, V-twin cylinder, Silenced (70db @7mt) Diesel Generator.


10kWh Generator.

10kWh Generator.


10kW, Water cooled, 3 cylinder, Silenced (68db @7mt) Generator, Quanchai engine, backed by an *Australian 1'200 hour or 1 year warranty.

10kW, Water cooled, 4 cylinder Diesel Silenced (70db @7mt), Large Diesel Tank for Long-run   Operation, P.O.A.


A Great Australian Made Product that Protects all engines from Overheating!

ENGINE GUARD in Real Time Test on Prado Landcruiser. 

Be smart and safe, install Automatic Mains Failure (AMF) switch gear:

An Automatic Mains Failure (AMF) switch is designed to automatically start your generator in the event of mains power failure or low battery bank voltage, and to automatically shut down the generator when the mains/battery power is restored.

Features of a good synchronised AMF panel are:

  • Load Manager, Reverse power protection, Earth fault, Auto manual synchronisation, Volt meter, Frequency meter, All should comes in a single panel.
  • Automatic start and stop of the generator and changeover the EB/generator lines.
  • Auto/manual selector is available.
  • Auto delay in start of Gen-Set.
  • Gen-Set stop with delay of 3 minutes.
  • Alarm for fail to start.
  • 4ST switch control for healthy start and stop of Gen-Set.
  • Manual start & stop switch.
  • Available with emergency stop switch.
  • Auto Low Lube Oil Pressure (LLOP), High Water Temperature (HWT) & Low Fuel (LF) Sensors-Relay protections.
  • Control wires and safety sensors according to their generators’ standard.
  • Checklist to find the fault and to correct.

Automatic Transfer Switch (ATS):

An ATS disconnects the home/business from the power grid when the generator starts.  A cheap residential, single phase ATS mains board mounted switch/system costs upwards of $150, a small price to pay for a first level of safety, these should be installed by a licensed electrician!

Safety wise an advanced Transfer Switch (ATS), provides automatic switching of your premises from Solar, Battery, generator or to state grid supply and back again.

Using LPG, CNG, LNG as Fuel for Generators:

LPG, CNG are all clean dry fuels, and produce less Greenhouse gas than Diesel or Petrol.

What’s the difference between LPG, CNG, LNG, and Hydrogen?

Can you convert a 60 Hz generator to 50 Hz?

In general, most commercial generators can be converted from 60 Hz to 50 Hz. The general rule of thumb is 60 Hz machines run at 1800 Rpm and 50 Hz generators run at 1500 rpm. With most generators changing the frequency will only require turning down the rpm of the engine.  In some cases, parts may have to be replaced or further modifications made.

How do I determine what size Generator I need?

Getting a generator that can handle all your power generation needs is one of the most critical aspects of the purchasing decision.  Whether you are interested in prime or standby power, if your new generator can't meet your specific requirements then it simply won't be doing anyone any good because it can put undue stress on the unit and even damage some of the devices connected to it.  Determining exactly what size of generator to get is often difficult and involves a number of factors and considerations.  To get more detailed information on this subject, please use our expanded Calculator on Sizing a Generator

Utility transformers:

 Can increase a Generators 240volts of electrical up to thousands of volts, which is more than enough to kill a utility line person making outage repairs kilometres away, and could also cause extensive damage to utility equipment, home appliances and your generator etc.

HISTORY of the Diesel engine:

History shows that the invention of the Diesel engine was not based solely on one man's idea, but was the culmination of many different ideas that were developed over time.

In 1806, Claude and Nicéphore Niépce (brothers) developed the first known internal combustion engine, that later was successfully operated on pulverulent solid fuel (coal dust), as far as we know there is currently only one of these Coal Dust engines operational in the world, and is located in a museum in Australia.

In 1885, the English inventor Herbert Akroyd Stuart began investigating the possibility of using paraffin oil (very similar to modern-day diesel) for an engine.

In 1891, it is reported that Herbert Akroyd Stuart built an internal combustion engine that operated on heavy fuel oil.

In 1892, Akroyd Stuart patented a water-jacketed vaporizer to allow compression ratios to be increased but primarily to reduce auto-ignition problems at higher loads and compression ratios. In the same year, Thomas Henry Barton at Hornsbys built a working high-compression version for experimental purposes, whereby the vaporizer was replaced with a cylinder head, therefore not relying on air being preheated, but by combustion through higher compression ratios.   It ran for six hours—the first time automatic ignition was produced by compression alone, however such a claim is not substantiated by any source and since until 1907 hot-bulb engines were supposed to be charged with fuel at the intake stroke, although separately from air, such an engine would have been prone to failure, poor performance or extreme malfunctioning due to pre-ignition.[citation needed] [21]

Herbert Akroyd Stuart was a pioneer in developing compression ignition aided by retained heat of combustion in the bulb, Rudolf Diesel however, was subsequently credited with the true compression ignition engine relying solely on heat of compression and not any other form of retained heat. Higher compression and thermal efficiency along with injection timing of fuel and vaporization of fuel through injection system and not by heated surface is what distinguishes Diesel's patent of 3,500 kilopascals (508 psi).

In 1892, Diesel received patents in Germany, Switzerland, the United Kingdom and the United States for "Method of and Apparatus for Converting Heat into Work".[22] In 1893, he described a "slow-combustion engine" that first compressed air thereby raising its temperature above the igniting-point of the fuel, then gradually introducing fuel while letting the mixture expand "against resistance sufficiently to prevent an essential increase of temperature and pressure", then cutting off fuel and "expanding without transfer of heat".[citation needed] In 1894 and 1895, he filed patents and addenda in various countries for his Diesel engine; the first patents were issued in Spain (No. 16,654), France (No. 243,531) and Belgium (No. 113,139) in December 1894, and in Germany (No. 86,633) in 1895 and the United States (No. 608,845) in 1898.[23] He operated his first successful engine in 1897.[24]

On February 17, 1894, the redesigned engine ran for 88 revolutions - one minute; with this news, Maschinefabrik Augsburg's stock rose by 30%, indicative of the tremendous anticipated demands for a more efficient engine. In 1896, Diesel rushed to have a prototype running, in order to maintain the patent. The first engine ready for testing was built on December 31, 1896; a much different engine than the one they had started with. In 1897, between deal signing, and brainstorming episodes they succeed, the engine runs; 16.93 kW with an efficiency of 16.6%, he is granted the patent. By 1898, Diesel had become a millionaire. His engines were used to power pipelines, electric and water plants, automobiles and trucks, and marine craft. They were soon to be used in mines, oil fields, factories, and transoceanic shipping.[25]

* Warranty: Based on any faults & bad workmanship associated during the Manufacturing process, excludes any damage associated with non approved fuel usage and incorrect operation, maintenance procedures, and any damage caused during shipping.

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