Can You Convert Your Generator to Run on Natural Gas?

If you own a diesel or petrol generator, you may wonder if it’s possible to convert it to run on natural gas instead. The short answer is yes; switching a generator’s fuel source from diesel or petrol to natural gas is possible. This fuel conversion process can provide a number of benefits, from potential cost savings to reduced emissions. Let’s take a closer look at how you can convert your generator and the advantages of doing so.

The Conversion Process Explained

Converting a diesel or petrol generator to run on natural gas is a multi-step process requiring specialised knowledge and equipment. First, the fuel system components (like the fuel injectors or carburettors) need to be replaced with new parts designed for natural gas operation. This ensures the gas can be appropriately metered and mixed with the air intake.

Next, you’ll need to incorporate a natural gas regulator and mixer into the system. The regulator controls the flow of natural gas, while the mixer blends it with the incoming air before it enters the engine’s cylinders. The engine’s electronic control unit (ECU) must also be reprogrammed to adjust ignition timing and air-fuel ratios for natural gas combustion.

Finally, you’ll need to add natural gas storage, be it an on-site tank or a connection to a natural gas pipeline. Proper piping, valves and safety devices must be installed to ensure safe and reliable fuel delivery to the generator.

The entire conversion process can be complex, so it’s best handled by an experienced technician or engine conversion specialist. They’ll ensure everything is installed and calibrated correctly so your generator continues to operate efficiently and safely on natural gas.

The Benefits of Switching Fuels

So, why would you want to go through the time and expense of converting your generator? There are several potential benefits that make it worthwhile for many owners:

Cost Savings – Depending on your location and the relative prices of diesel versus natural gas, you could see significant fuel cost savings by switching to natural gas. This can improve your generator’s operating margins and provide a faster return on your conversion investment.
Reduced Emissions – Natural gas is a cleaner-burning fuel than diesel. Generators converted to natural gas typically produce lower levels of particulate matter, nitrogen oxides and carbon monoxide emissions. This can be useful if you’re operating in an area with stricter emissions regulations.
Energy Security – Natural gas is more widely available than liquid fuels in many parts of the world. By tapping into a local natural gas supply, you can ensure a more reliable and consistent fuel source for your generator, reducing the risk of fuel shortages or delivery disruptions.
Sustainability – As a relatively clean-burning fossil fuel, natural gas is sometimes viewed as a “bridge” fuel that can help facilitate the transition to renewable energy sources like solar and wind power. Converting your generator to natural gas can be a step towards more sustainable power generation.

Is a Conversion Right for You?

Whether converting your diesel or petrol generator to natural gas makes sense depends on your specific situation and needs. Factors like your generator’s age and condition, local fuel prices, emissions regulations, and access to natural gas infrastructure will all play a role.

If you decide to move forward, be prepared for an involved installation process. However, the payoff of lower fuel costs, reduced emissions, and greater energy security could make it a worthwhile investment for many generator owners. So, don’t be afraid to switch to natural gas – it might just be the upgrade your generator needs.

If you’re considering converting your diesel or petrol generator to run on natural gas, the team at S&A Generators is here to help. Our qualified technicians can assess your specific generator and provide expert guidance on the feasibility and potential benefits of a fuel conversion.

Contact us today to schedule a consultation. We’ll work closely with you to determine the best solutions to keep your power backup system running reliably and efficiently, no matter what fuel source you choose. Take the first step towards cost savings, reduced emissions, and greater energy security – reach out to S&A Generators now.

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Gas Generators for Backup Power and Standby Electricity in South Africa

Gas generators are powerful standby systems that help homes and businesses stay productive during load shedding by supplying electricity when the grid goes down. Unlike a traditional diesel power generator, gas generators burn fuel cleanly and often operate more quietly while reducing emissions. In this guide, we explain how electric generators work, compare fuel options, and share advice on how often generator service should be done to keep your system reliable and long-lasting.

Gas generators convert fuel into electricity using an internal combustion engine connected to an alternator. The engine burns a gas fuel, turning the crankshaft, which spins the alternator to produce usable power. Because of their design, gas units are often quieter, cleaner, and easier to maintain than older fossil-fuel options like diesel power generator sets. Gas generators are suitable for residential use, commercial buildings, and industrial operations that need reliable backup power.

Us taking a gas generator for a demo at an estate.

Gas vs Diesel power generators

When choosing between gas generators and a diesel power generator option, there are key differences to consider:

Fuel & emissions: Gas burns cleaner and emits fewer pollutants, while diesel can be more polluting.
Noise: Gas generators generally run quieter than diesel options.
Fuel cost: Gas is often cheaper to operate over time, though diesel may still be more efficient in some heavy-duty scenarios.
Maintenance: Diesel units are sturdy but may require more frequent servicing, while gas engines often have simpler maintenance routines.

A Kohler Gas Generator

Installation of Generator

The customer had opened a new branch in Tabankulu and needed a generator installed. We went out to the site first to do a site inspection and then quoted to do the installation. This installation took roughly 4 days. The installation included building of the bund wall and plinth for the generator to be put on. This had to be done in advance as the bund wall is built from bricks and cement, and it therefore needs time to dry. The generator was then rigged into position using the crane truck. Once the generator was in position, all the cables were run from the generator into the building and connected to the building’s DB board. The generator cables were then covered in sprag, which will protect them from being damaged by rain and other things. After all the cable work was complete, palisade fencing was then placed around the generator, as well as barbed wire as extra protection for the generator. A COC was then carried out by the electrician, this is to make sure that all electrical work is up to the right standard. A COC is always required when electrical work has been carried out.

This is the bund wall and plinth that was built. The generator was then placed on the plinth and inside the bund wall.

How often is generator service done

To keep your gas generators reliable during load shedding, regular maintenance is essential. Most systems should be serviced:

Every 6 months for standby units used weekly
Annually for light residential usage
After any long-running or heavy-load events

Routine checks typically include fluid levels, spark plug inspection, and load testing to prevent unexpected failure.

Choosing the right gas generators for your needs

When comparing generators, consider:

Your average load requirements
Fuel availability (gas vs diesel)
Long-term running costs
Whether noise and emissions matter for your location

Our team can tailor gas generator installations to meet residential or business needs, ensuring efficient backup power when the grid fails.

The generator cables were then run into the branch.

The cables from the generator.

The generator is enclosed by palisade fencing and barbed wire.

Reliable Backup Power Starts With the Right Generator Knowledge

To get the most out of your gas generators, plan regular maintenance and understand the differences between gas and diesel power generator systems. Knowing how electric generators work helps you choose the right model, and following advice on how often generator service should be done protects your investment. Whether you need standby power for your home or business, gas generators offer a reliable and often cleaner backup solution. Contact our team for personalised recommendations and installation support.