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.
