When it comes to generators, you have a lot of options. But which fuel type should you choose? Gasoline, propane, natural gas, or diesel? Here’s a brief overview of each option so that you can make an informed decision.

How Much Fuel Does a Generator Use? 

The fuel consumption of a generator can vary significantly depending on several factors, including the generator’s power output, load demand, efficiency, and the type of fuel being used. To determine the specific fuel consumption of a generator, you would need to refer to the manufacturer’s specifications for that particular model. The fuel consumption is often provided as a rate, such as gallons per hour (GPH), litres per hour (LPH), or cubic feet per hour (CFH).

For example, a small portable gasoline generator with a 1,000-watt output might consume around 0.1 to 0.2 gallons (0.38 to 0.76 litres) of gasoline per hour at half load. On the other hand, a more significant diesel generator with a 100-kilowatt output might consume approximately 10 to 15 gallons (38 to 57 litres) of diesel per hour at full load.

Similarly, the fuel consumption of natural gas and propane generators is typically measured in cubic feet or cubic meters per hour. The fuel consumption rates can vary depending on the generator’s size, load demand, and efficiency.

It’s important to note that these figures are general examples, and the actual fuel consumption can vary significantly based on the specific generator model and operating conditions. To determine the actual fuel consumption of a generator, it’s best to consult the manufacturer’s specifications or contact the generator supplier for accurate information.

What Affects the Diesel Generator Fuel Consumption Rate?

Several factors can affect the fuel consumption rate of a diesel generator. Understanding these factors can help optimise fuel usage and reduce costs. Here are the revised sentences:

  1. Energy Demand: The fuel consumption rate of a diesel generator is directly influenced by the amount of energy required. As the energy demand increases, the generator will consume more fuel to meet the load. Therefore, minimising the usage of machinery or appliances connected to the generator can lower the load and reduce fuel consumption.
  2. Generator Size and Efficiency: If the size of your generator is larger than necessary for your specific load or energy requirements, it may result in excessive fuel consumption. Consider replacing the large generator with a smaller, more efficient unit in such cases. A correctly sized generator will operate closer to optimal efficiency, resulting in lower fuel consumption and reduced fuel costs.

By considering these factors and optimising your generator usage, you can effectively manage and minimise the fuel consumption of your diesel generator, leading to cost savings and improved efficiency.


Gasoline Generators

The most common fuel type for portable generators is gasoline. It’s easy to find and convenient since it can be purchased at any service station. However, there are some downsides to using gasoline as a power source for your generator. First, it’s expensive and more expensive than other types of fuel. Second, gasoline produces more carbon monoxide than other types of fuel sources (although this isn’t as much a problem with modern engines). Third, if you don’t use your generator regularly then the gasoline might go bad over time (this also depends on how well it was stored). Finally, if you have an older model generator that doesn’t have an enclosed engine compartment then fumes from the exhaust will be released into the air over time which could pose health hazards if inhaled in large quantities over long periods of time (especially if there are no ventilation systems in place).

When to Use Gasoline Generators

Gasoline generators can be used indoors and outdoors and are good for short-term power outages. They are also more portable than propane generators, making it easier to move from one location to another if necessary. If you plan on using your generator regularly or for long periods of time, however, a petrol generator may not be ideal for you because it will require frequent refuelling.

Propane Generators

Propane generators use liquid propane (LP) fuel stored in a tank on the back of the generator. They tend to be more expensive than other types of generators, but they’re also more powerful and quieter than their counterparts when running at full capacity. Propane generators are ideal for powering large appliances such as refrigerators and freezers during an emergency situation when there’s no electricity available. They’re also good for powering whole homes or businesses that don’t have access to natural gas lines during an outage because they can run on either LP or natural gas fuel sources. The downside to these types of generators is that they require special safety precautions when operating them inside your home.

When to Use Propane Generators

Propane generators are better for long-term use because they don’t require refuelling as often as gasoline-powered ones. They also have fewer emissions than gasoline engines due to their lower compression ratio (compression ratio is the number of times an engine’s piston is compressed per cycle). Because propane is stored under pressure in its liquid form, it produces more energy per gallon than gasoline — 25 per cent more when burned at 100 per cent efficiency (which is rare). This means that propane-fuelled engines can run longer on a fuel tank than gasoline-powered ones before running out of fuel.


Diesel Generators

Diesel generators are less expensive than gas generators in the long run, especially if you go for a larger unit that will power your entire home or property for several days at a time. Diesel also runs at higher temperatures, which means it creates more exhaust heat than gas-powered engines do — a major drawback if you live in a hot climate where heat buildup can cause problems with electrical equipment and wiring over time. Diesel engines are also harder to start (and stop) when compared with a gas engines because they require more starting effort due to the compression required by their design; this makes them unsuitable for use as backup power sources in areas where frequent starts and stops are required.

When to Use Diesel Generators

Diesel generators are used for various applications and in various situations. They are very efficient and quiet, making them ideal for residential or commercial use. A diesel generator can be used for backup power or as a primary power source if the electric grid goes down. In some cases, they can even be used to provide reliable power during an emergency when electricity is unavailable from the local utility company.

Solar/Electrical Generators

These generators are made from renewable energy sources such as solar panels and wind turbines. The generator produces electricity from sunlight or wind, so it can be used even when there is no natural gas supply or when there is no access to gasoline or diesel fuel. These generators can be powered by batteries or by photovoltaic cells that are attached to solar panels on the roof of your home.

Natural Gas Generators

Natural gas generators are similar to diesel or petrol generators but they use natural gas instead of fuel oil or gasoline. Natural gas generators tend to be more expensive than other types of generators but they also last longer because there is less friction in their parts due to the low-viscosity nature of natural gas compared with diesel fuel and petrol. Natural gas generators produce less noise than other types of generators, which makes them ideal for use inside homes or offices where there’s noise restrictions like hospitals and schools. 

You may also want to consider the fuel consumption in the UK. This can help you choose the type of generator based on the fuel used. Please check the table below.

Diesel21.73 million metric tons
Petrol254.17 thousand barrels per day
Natural Gas      77 billion cubic meters

Choosing the right fuel type generator depends on your needs, considering portability, fuel availability, cost, efficiency, and environmental impact. Gasoline generators are convenient and portable but have higher operating costs. Diesel generators are durable and efficient but may be costlier upfront.

Natural gas generators offer continuous fuel supply and reduced emissions, but installation can be complex. Propane generators provide clean and reliable power, especially in remote locations. Dual-fuel generators offer the flexibility to switch between fuels. Assess your requirements carefully to make an informed decision and ensure an uninterrupted power supply when needed.

If you are interested in purchasing a generator, Bellwood Rewinds offer a range of generator services, from used generators to new generators and generator hire; we have got you covered. For more information, please get in touch with our team today.