Did you know that the first electric generator was a simple dynamo? Yes, the same principle is used on bikes today. Generators still work on the same principle by converting mechanical energy to electrical energy. Now, where does the generator get its mechanical energy from? Usually, most generators rely on energy conversion from one form to another. For thermal engines, they can either use natural gas or gasoline. So, what is there to know about natural gas vs gasoline generator?
The main difference stems from their fuel. Natural gas generators uses natural gas to generate electricity, whereas gasoline generators use liquid gasoline as fuel.
How Do Generators Work?
An electrical generator works by converting mechanical energy to electrical energy. It relies on an engine to produce the mechanical energy, which then translates to an alternator through coupling.
The engine burns fuel like gasoline, propane, natural gas, or diesel. The rapid combustion causes the air in the engine to expand, pushing pistons. A crankshaft connected to the engine turns, coupled to the alternator.
Now, what is unique to natural gas vs gasoline generators?
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Natural Gas Generators
The natural gas generators burn a compressed mixture of air and fuel. A spark plug lights up the mixture, and the expansion causes the pistons to turn the crankshaft.
Natural gas generators come in two main types:
1. Standby
These generators are permanently installed and get their gas from the local utility company. Since the gas bill is high, these standby generators only swing into action for a short time during emergencies.
2. Prime
These have no supply from the local utility company. Therefore, if you use one, you must order the fuel by truck. These generators can handle bigger loads than standby and also run longer.
Uses Of Natural Gas Generators
Natural gas generators are suitable for places where power outages are not an option. Hospitals, nursing homes, and other big facilities are a few examples. This is advantageous over gasoline generators because the price of gas rises in emergency situations.
Pros
- There is never a need to refill the fuel tank, especially if you are on the utility line.
- Natural gas is cheaper than gasoline.
- Natural gas generators work well even in wet conditions; hence there is no issue of wet stacking in the exhaust system.
- More environmentally friendly.
- Natural gas is more available, even during disasters.
- More convenient, you can rely on the interstate gas pipeline network that spans the entire country.
Cons
- Natural gas is explosive.
- Compared to gasoline generators, natural gas engines are less efficient.
- Require frequent maintenance.
Factors to Look Into Before Buying a Natural Gas Generator
As you prepare to get your natural gas generator, here are a few things to consider:
- Runtime– How long do you want your generator to run? If you need more running hours, get a higher-capacity storage tank for your prime generator.
- Load capacity– A bigger load demands a larger capacity generator. The load is a summation of every appliance you could have running in your home.
- Durability – Get a generator with protective features like low oil shutdown and overload protection. This way, it becomes easier to protect your generator from damage.
- Cost– How much do you plan to spend on a generator? This will include the initial installation and the running cost.
- Noise levels– Get a generator with an engine so quiet that a wedding can proceed without disturbance.
- Maintenance – Remember, natural gas generators need more maintenance and potentially more downtime.
Gasoline Generators
On the other hand, gasoline generators rely on gasoline to produce electricity. The air-fuel mixture from the carburetor flows into the engine through an inlet duct. A spark plug ignites the mixture, which expands, causing the engine’s pistons to move.
Gasoline generators can also deliver a wide output range, from as low as little as 1000 watts (and lower) to as much as 15000 watts (and higher).
Uses of a Gasoline Generator
Gasoline generators tend to be compact. Therefore, they make the perfect backup power sources for commercial, residential, agricultural, and industrial applications.
Furthermore, gasoline gensets are portable devices. Therefore, they make the perfect addition to an outdoor activity like camping or when you choose to travel across the country with your RV.
Over the last few years, gasoline generators have seen a rise in their market share. Now, manufacturers are fulfilling customers’ needs who do not want to experience sudden power outages.
Pros
- Compact, lightweight, portable.
- Require little maintenance.
- Are more affordable to run.
- More portable.
- Gasoline is fairly attainable.
- More efficient than natural gas generators, thus providing more usable power.
- Compared to natural gas, gasoline generators are safer.
Cons
- When used long run, gasoline generators are expensive.
- Combustion of gasoline leaves a larger carbon print than gas.
Factors to Consider Before Buying a Gasoline Generator
As you prepare to make your purchase, consider the following factors:
- Fuel tank size– The size of the tank will determine the generator’s runtime.
- Noise level– If you will be using your generator for tailgating or camping, then the lower the noise levels, the better.
- EFI– If you want to avoid having a clogged carburetor now and then, you can choose a gasoline generator with an electronic fuel injection system.
- Wheel kit– Since most compact generators move, get one with a wheel kit to help you move it more conveniently. However, if you go for permanent installation, you may not necessarily need the wheels.
FAQs - Natural Gas vs Gasoline Generator
Is a natural gas generator worth it?
A natural gas generator is worth it if you want to keep your home powered through hurricanes.
Which is cheaper; gasoline or natural gas?
In the US, natural gas is cheaper than gasoline. However, gasoline generators are more fuel-efficient than natural gas engines and require less maintenance. Therefore, gasoline generators are cheaper in the long run.
How long will a generator run on natural gas?
The generator’s runtime will depend on the size of the tank. You can run for long hours if you have more storage or a connection to the utility line.
What is the most efficient fuel for a generator?
Diesel is the most efficient fuel for generators. It is also safer and easily attainable.
Can a natural gas generator power a house?
Yes, if the generator’s power rating is higher than your total load demand, then you can use your generator to power your house.
Are natural gas generators loud?
Compared to gasoline and diesel generators, natural gas generators are quiet.
Final Thoughts: Natural Gas vs Gasoline Generator
As you settle the score between the features of natural gas vs gasoline generators, it is clear that both come in handy in different situations. Some are best suited for home and emergency applications, while you can use others to go camping. Either way, generators come in handy when you need a reliable power backup. Whether it’s gasoline or natural gas, get the one that suits your needs and matches your budget in preparation for darker days.