understanding the distinction: genset vs generator

Generators are essential for ensuring a steady electrical supply, particularly in times of crises or in regions frequently hit by power failures.

As we explore further into the realm of power production, we encounter certain jargons that may be puzzling for novices. For instance, you might have come across the terms "genset" and "generator" which are frequently used synonymously.

Are gensets the same as generators? Or do they represent different aspects of power generation? This piece seeks to provide an in-depth comparison between gensets and generators, unraveling their operation processes, varieties, pros and cons. And compare them to help you clearly understand differences between the two.

What is a genset and how to work

Short for "generator set", typically refers to pairing of a primary driving source, most commonly an engine, with electricity generator.  

The genset works as a coordinated system in which fuel is used for the engine to drive the generator to generate electricity. However, genset is more than just an engine and generator. Most gensets include other components as part of a complete system. These ancillary components often comprise cooling and lubrication systems, operational management control panels, and enclosures for noise reduction. In certain instances, an automatic transfer switch (ATS) may be incorporated, which alternates the power source between the grid and the genset during power failures.

Essentially, genset is a completely enclosed power generation unit that provides a seamless, powerful and efficient source of electricity through the combined work of its components. Whether powering remote workplaces, replenishing the grid during peak loads, or meeting emergency backup needs, gensets are outstanding examples of the engineering marvels we have at our disposal.

Main types of gensets

Gensets are available in varied types, each presenting its own sets of pros and cons. Comprehending these variations is pivotal in selecting a unit that caters to your distinct requirements.

Gasoline genset

Gasoline gensets are a common choice for home backup power and small-scale operations.

Pros: Gasoline gensets generally have lower upfront costs and are lighter and more compact than other models, making them a favorite for portable use. Gasoline is also widely available, so refueling these gensets is often convenient.

Cons: Typically, gasoline powered generators tend not to last as long as other kinds, especially under continuous usage. From an operational cost perspective, petrol is usually pricier than its counterparts like diesel and natural gas. Moreover, gasoline not only has a relatively brief storage duration but also poses a significantly high fire risk, leading to prospective storage and safety concerns.

Diesel gensets

Diesel generators serve as the pillars of energy production and are frequently utilized in spaces such as industrial locations and large-scale commercial establishments.

Pros: Diesel gensets are recognized for their long service life, high fuel efficiency and rugged performance, and they can operate under heavy loads for extended periods of time. Diesel fuel has a long shelf life and the power generation design does not require any form of ignition system, making these gensets relatively safer.

Cons: Diesel gensets have higher upfront costs compared to gasoline gensets. Additionally, although many modern models are equipped with sound insulators and emissions controls, they are noisier and emit more emissions.

Propane and natural gas gensets

Propane and natural gas fueled gensets are in a class of their own, appreciated for their environmental advantages and practicality.

Pros: These gensets burn cleaner and emit far fewer pollutants than gasoline and diesel gensets. Fuels, especially natural gas, are often readily available through utility lines, eliminating the need for fuel storage. Additionally, propane has an unlimited shelf life.

Cons: Propane and natural gas gensets are generally less fuel efficient and cannot compete with diesel gensets in terms of power output. The upfront costs can also be high and rely heavily on a constant supply of fuel, making them less suitable for remote areas without reliable natural gas connections.

Hybrid genset

Hybrid gensets, which combine traditional generators with renewable energy sources such as solar or wind, and battery storage systems, are an emerging category.

Pros: These gensets offer improved fuel efficiency, environmental benefits and the possibility of operating in remote off-grid locations. Through integration of multiple energy sources, they have capability to supply power even during times when single energy source may be in short supply or not accessible.

Cons: Hybrid gensets typically have high initial setup costs, and their operation can be complex, requiring advanced control and management systems. Depending on the combination of power supplies, they may also require a significant amount of installation space.

Bear in mind that choosing genset involves considering aspects like power requirements, operating conditions, local fuel supply, and financial limitations. Consequently, performing a needs evaluation prior to making any decisions is invariably prudent.

What is generator and how does it work

A generator is also a powerful device that is usually a compact mobile unit that offers convenience and flexibility. Constructed for in an array of scenarios, from leisurely camping expeditions to compact construction locales, these generator conventionally run on either gasoline or diesel fuels.

Just like the variety of generators available, there exist distinct kinds of generators, each offering unique operational characteristics. The primary classifications include portable generators and inverter generators.

Main types of generator

Portable generator

Designed for mobile and temporary power supply, ideal for camping, workplace and emergency home use.

Pros: These generators are generally cost-effective and simple to set up. Capable of being powered by multiple fuel types (including gasoline, diesel, and propane), they deliver considerable energy output which makes them perfect for operating hefty machinery or numerous devices concurrently.

Cons: On the downside, portable generators are noisy and less fuel efficient. They often produce "dirty" power, which means the power output can be erratic and can damage sensitive electronic equipment.

Inverter generator

In contrast, inverter generator is a new type of generator that uses advanced technology to produce "clean" electricity.

Pros: Inverter generators are compact, lightweight, quieter and energy efficient. They produce a stable, clean power curve that is safe for sensitive electronics such as laptops and smartphones. Some models have a paralleling feature, allowing you to connect two identical devices to get double the power output.

Cons: The initial cost of an inverter generator can be much higher than a portable model. They also typically have lower power output, making them less suitable for heavy-duty applications without parallel configurations.

Backup generator

Finally, we should mention a backup generator, a permanently installed device that automatically provides power during a power outage.

Pros: A backup generator can power an entire home or a large portion of a commercial facility and run automatically when a power outage is detected. These units can run on natural gas or propane, sources that do not degrade over time, creating a reliable long-term backup solution.

Cons: These generators are more expensive to purchase and install. They are not removable and require professional installation in accordance with local codes and standards.

What is the difference between genset and generator

Gensets vs generators: which one should you choose?

In regards to whether a generator or a genset is superior, the response isn't definitive.  Both possess pros and cons that ought to be assessed per the unique circumstances and needs.

gensets are recognized for their high capacity power supply, making them suitable for larger energy needs. It can run uninterrupted for a long time, and the diesel engine improves its independence and service life. However, its large size and heavy weight make it difficult to install and move. It also requires adequate ventilation space and generates a certain amount of noise.

Generators, on the other hand, may not provide as much power as gensets, but they offer more convenience for home use and are energy efficient.

In short, the choice between a generator and genset depends on unique energy needs and operating conditions. Considering the pros and cons of both options, it is recommended to seek expert advice from BISON and check the features and technical specifications of the models available on the market.