Part 5 – Making the right generator choices

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Advancements in Generator Technology

Modern generators have seen significant improvements compared to older models. These upgrades include features like turbocharging, compactness, affordability, increased efficiency, and the ability to reach full capacity within seconds. Moreover, there is a wide range of fuel options available to cater to different needs.

Diesel generators are the most commonly used type due to their low fire risk and long-term stability. They are often the most cost-effective option in terms of upfront costs.

Natural gas generators are a popular alternative where natural gas supply is accessible. However, the engine size of a natural gas generator needs to be larger to compensate for the lower energy content of gas compared to diesel or gasoline. One advantage of natural gas generators is the elimination of the need for a fuel tank, as the fuel is supplied directly from the main gas line, ensuring a constant and uninterrupted supply.

It's worth noting that the installation of a natural gas generator can be costly if a sufficient gas main is not already in place. Additionally, disruptions in the main gas supply can lead to unexpected power outages, which are beyond your control.

Weight Considerations

A 100kVA generator typically weighs around 1.7 metric tons before factoring in fuel. The fuel tank size may vary based on requirements, but it is advisable to allocate one kilogram per liter of diesel to account for weight considerations.

The placement of the generator is crucial. If it is installed on the ground level, weight is not a significant concern. However, if the generator is placed within a building or on a rooftop, it is essential to ensure that the structure can bear the load.

Exhaust, Noise, and Heat Emissions

All internal combustion engines emit carbon monoxide (CO) and noise. Proper ventilation is necessary to vent the exhaust gases, and it is recommended to keep the exhaust pipe length no longer than 10 meters and positioned away from windows and air intake vents.

To reduce noise levels for outdoor use, acoustic hoods and weather-proof enclosures can be employed. Diesel generators can also be equipped with catalytic converters within the silencers to minimise both chemical and noise pollution. It is important to insulate these converters as they operate at temperatures ranging from 200°C to 300°C.

Since diesel generators are typically air-cooled, additional cooling and ventilation measures, such as forced air cooling, may be required in the immediate vicinity.

Remote Monitoring

Remote monitoring services provide valuable maintenance solutions by continuously monitoring the generator during operation. These services oversee weekly auto-start procedures, verify successful test runs, and send alerts for mains failure, common alarms, and low fuel levels via SMS or email notifications.

If you have any inquiries, please feel free to contact us.