When it comes to sourcing reliable power solutions, understanding the difference between gas, diesel, and petrol generators is essential. Each power source has unique advantages and specific use cases, but how do you decide which is the right choice for your specific needs? Let’s delve into the details.


20kVA – (Generac) Three Phase Silent LPG/Natural Gas Generator – BP20S3-G

👉 Gas Generators – Economic, Quiet, and Efficient

Known for their quiet functioning and environmentally friendly features, makes Gas Generators ideal for residential and small commercial businesses. While their upfront cost might be higher, gas generators require less maintenance, which makes them a cost-effective choice as they continue to deliver steady power over extended periods.

What sets gas generators apart is their exceptional efficiency. A recent article by Engineering News highlights the benefits of gas generators, including significant energy savings, user control over the power supply, and the ability to avoid grid failures or load-shedding [Source: Engineering News]

Furthermore, gas generators can recover heat from their operation, which can be utilized in various industrial processes leading to substantial cost and environmental savings [Source: Engineering News]

💡 Browse our Gas Generators here: https://www.powerequipment.co.za/product-category/generators/gas-generators/


👉Diesel Generators – Robust, Efficient, and Powerful

Diesel generators are known for their durability, energy efficiency, and robust performance. Despite being a bit noisier and requiring more regular maintenance, they are often the go-to choice for larger commercial and industrial applications.

The significant fuel efficiency and longevity of diesel generators give them an edge, especially for sustained, high-demand use.


But did you know that diesel generators come in two forms – single-phase and three-phase?

👉  A Single-phase generator produces power through a single alternating current (AC) flow. This flow fluctuates and peaks at its ou

12.5kVA – Three Phase Silent Diesel Generator – BP12000S3

tput, generating the most power, then returns to a low output. The power cycle’s continual oscillation means the generator’s energy output dips before rising again.

This pattern makes single-phase generators more suitable for smaller applications, like powering a home or small business.


👉On the other hand, a three-phase diesel generator is like having three single-phase generators working in harmony within one unit. This generator uses three conductive wires, each producing an AC flow offset by 120 degrees.

This arrangement ensures a continuous power output, as one of the three flows is reaching its peak at any given moment. It’s like a relay race where there’s always a runner at full speed.

This feature makes three-phase diesel generators significantly more powerful. They can deliver up to 180% more capacity than a similarly sized single-phase generator, making them ideal for more substantial industrial applications.


So, whether you need a generator for smaller tasks or heavy-duty industrial work, diesel generators can cater to your power needs with their single-phase and three-phase options.

💡 Check our Diesel Generator options: https://www.powerequipment.co.za/product-category/generators/diesel-generators/ 


👉Petrol Generators – Portable, Versatile, and Highly Efficient

Petrol generators are champions of portability and versatility, making them an excellent choice for personal or small-scale applications.

Whether planning a camping trip, an outdoor event, or needing a backup power supply for a small home, a petrol generator is often the ideal choice.

But just like anything else, petrol generators have their pros and cons. On the plus side, petrol generators are smaller and lighter than diesel models, making them easier to move around and set up wherever needed.

Additionally, they’re often more fuel-efficient. That’s right, despite their small stature, petrol generators pack a punch in terms of power efficiency, burning less fuel per hour than a similar wattage diesel unit.

However, it’s important to be aware of some of their downsides too. Petrol, being more volatile than diesel and ignited by a spark, can pose higher safety risks.

Furthermore, petrol burns at higher temperatures than diesel, which can lead to more wear and tear on your generator’s engine over time. And while petrol generators are compact, they tend to operate at higher RPM (revolutions per minute) rates due to their smaller size, which can result in more noise.

So, if you’re considering a generator for a quiet environment, that’s something to keep in mind.


All said and done; it’s about weighing the advantages against the drawbacks.

💡 Discover our Petrol Generator range: https://www.powerequipment.co.za/product-category/generators/petrol-generators/



Remember, there’s no one-size-fits-all when it comes to power solutions. We’re here to guide you in choosing the perfect generator for your needs, helping you understand the ins and outs of each option.

Whether it’s a gas, diesel, or petrol generator, each has its strengths and caters to different power needs. Understanding these differences is essential to making an informed decision aligning with your power requirements.

With recent advancements in gas generator technology, these generators can offer exceptional efficiency and additional benefits such as heat recovery.


We aim to help you choose the perfect power solution that suits your needs. Explore our extensive range of generators today, and take the first step toward a reliable and effective power solution.


2 Responses

  1. I am interested in acquiring a generator for my house. All equipment on, we consume close to 8 kW.
    Pls give indication of fuel consumption and price on a suitable generator, pls include gas, petrol and diesel generator prices.

    Thank you.
    Kind regards,
    Kobus de Beer

    1. Hi Kobus,

      Thank you for your message! Our team will be in contact with you to assist you further.

      APE Social Media Team.

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