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Articles Generators Informational Topics

How Do You Ground A Portable Generator To Your House (2 Easy Fixes)

Having a non-grounded generator is very dangerous, so how do you ground a portable generator in your house?

To have a backup emergency power supply, most people rely on having a portable generator that can be easily opted for anywhere they require.

Still, the main part is most people do not ground it; what about the negative consequences if your generator isn’t grounded? What could be the side effects?

Secure the grounding because it will keep your appliances and unit safe and ensure your safety by preventing electrocution or fire.

How Do You Ground A Portable Generator to Your House

To solve your query about grounding your portable generator, we suggest this handy guide using various methods along with advantages and benefits.

Before starting with the methods, it is better to brief you about grounding and its significance.

So, let’s get started with what is meant by grounding a generator and why you need to ground a generator.

The easiest is grounding a generator using a ground rod, or cable to a grounding bolt on your generator. 

How Do You Ground A Portable Generator In Your House?

Portable generators require grounding to keep your system appliances safe from negative consequences.

To solve the query of how to ground a portable generator to your house, you will require a ground wire whose one end is to be connected with the generator’s ground bolt and the other to a ground clip that is directly connected to the house ground.

Because of grounding, the excess of the current will not cause electrocution but flow towards the earth, keeping your appliances, unit, and yourself safe from getting harmed.

So let’s head for the methods of grounding so that you can protect yourself from electrocution caused by excess electricity coming out of your generator.

What Is The Grounding Or Earthing Of The Generator?

Grounding and earthing are interchange terms used for connecting any device or unit to the ground to promote a low resistance path for the flow of electric current.

Grounding prevents electrocution, shocks, and fire by changing the excess current direction from places it should not go rather than converting that towards the ground. 

When you ground your generator, you ensure the safe and least resistant pathway for excess voltage that may occur due to lightning or bad weather condition or in terms of a faulty electronic that leads to extra voltage to cause electrocution to the person using the device.

So to keep your appliances safe, keep a portable generator in connection to the ground by grounding techniques that will prevent harmful consequences for humans, the unit, and devices.

In simpler words, grounding a generator will keep the user and the unit safe from any possible harm of electric shock or electrocution caused by bad weather or faulty connections. Now that you are familiar with the purpose of grounding electrical appliances or generators at home you must be curious to know the benefits of grounding a portable generator in detail.

Let’s proceed with the advantages of grounding a portable generator.

Methods For Grounding A Portable Generator: 

Dealing with electrical connections can be critical, or using a portable generator that isn’t grounded.

It will result in a high chance of dangerous situations, including electrocution and fire.

Let’s learn how to ground the generator using various methods. 

Method 1:

To ground your portable generator, you must be careful not to ground it separately because that might cause issues.

Make sure you ground it on your home’s electrical supply; for that purpose, you need some requirements to get the generator grounded. 

  • Small alligator clip 
  • Grounding wire 
  • Ground screw opener 
  • Plier 

For safety purposes, you can opt for 

  • Goggles 
  • Insulated gloves
Locate The Grounded Bolt:

On the side front of the generator, you may find a small bolt marked as a grounding bolt, which is used for grounding your generator to keep the electrical supply safe. 

Connecting Wire To Grounded Bold:

To start with the process, take the grounding wire and connect one part of the wire to the grounding screw; for that, you would be required to unscrew the part and properly remove it and place the wire in the form of a loop. 

Secure Connection:

After that, use using a wrench to secure the screw back. In this way, the wire one ends gets connected with the generator.

Ground Connection:

Then take the wire’s other end and connect it to a small alligator clip using a plier. You can connect it to the alligator clip or the ground housing.

Still, the clip is useful because it will easily get attached to the housing ground system.

When the connection is secured, you can take it and connect it to the ground housing without any inconvenience. 

End Result:

So finally, you have grounded your generator.

Remember to place the generator at the corner of the house to avoid any harmful accidents.


Using a metal rod also helps ground your generator, especially that generator you use in your RV or any other building.

Before dropping, ensure that you get all the requirements to avoid inconveniences.

  • Hammer 
  • Ground rod for generator
  • Six gauges of solid copper wire 
  • Copper ground clamp 
  • Wrench 
Pound The Ground Rod;

It would be best if you took a grounding rod approximately 7 to 10 feet long to start grounding your generator.

Take the rod, place it in the ground, and pound it using a hammer for about 3 feet. Keep on doing the process till the desired length goes under the soil.  

Connecting The Grounded Wire:

Once you have placed the rod in the ground 3 feet below its length, you need to take six gauge solid copper wires to secure it around the tip of the ground rod with the help of a copper clamp.

Remove the insulation and surround it, making a loop around the rod. It will connect both conductors, resulting in a secure connection. 

Securing The Wire:

With the help of a wrench, properly secure the connection, so the wire gets properly connected with the metal ground rod. 

Generator Ground Connection:

Take the wire end, remove the insulation about an inch, and use the bare wire to get around the bolt using a wrench to secure the connection.

Once the first end of the wire is connected, take the second end, take it towards the generator grounding bolt, and unscrew it.

Once both sides’ connections are secured, your grounding is completed. 

End Result:

Your generator is now safe to operate, keeping you safe from getting electrocuted and reducing the chances of fire.

Benefits Of Grounding Your Portable Generator

Given below are the key benefits that you will get by grounding your portable generator. If you don’t feel the urge to read the benefits and want to head straight for methods of grounding, you can do so by skipping the benefits and moving to our methods section given under the advantages section.

Prevent Electrocution:

In areas where the weather conditions are stable or where lightning is often seen, the generator might get an excess of voltage that can cause your electrical appliances to get damaged and can also damage your generator by that, will cause electrocution, but with grounding all these extra voltages are supplied to the ground without causing harm to human or any electrical device operating in your home.  

Prevent Fire:

The benefit of grounding your generator is to make it a safe operating device that prevents hazardous fire conditions caused by all the faulty electronics or, in the case of, any lightning.

Fire by a single spark can damage anything around it, so it’s better to go for grounding than deal with fire issues. 

Ensure Safety:

Grounding your portable generator will prevent electrocution and chances of fire, and keep your generator safe from getting damaged by extra voltages.

Grounding provides human safety and ensures the unit from getting damaged and safe from theft. If you live in areas with chances of theft, then grounding will also prevent your device from getting stolen by thieves because of its secured connections. 

Improve Fuel Efficiency:

Having a grounded portable generator will cause less fuel usage while providing a standard voltage to run your device and keeping its use in safe hands. It also helps in stabilizing the voltage, resulting in fuel efficiency.

Timely maintenance not only emphasizes cleaning but will ensure the generator runs in fuel economy mode and saves you extra cost for dealing with issues when you forgot to maintain them. 

Low Noise:

It is observed that when you ground a generator, the noise produced decreases, so it not only protects you from electrocution or electric shock or any hazardous condition but also reduces noise pollution keeping your daily life activities carried on without interference of unnecessary noises. 

Prevent Power Surge:

High voltage may cause a shock by enhancing the power surge—current flow quickly through your body and back to the generator, resulting in shock.

The portable generator is grounded with a grounded rod to prevent and protect you from getting shocked. 

Stabilize Voltage Level:

Grounding helps in the stabilization of the voltage levels during the running process.

Despite any lightning conditions, the extra voltage would be supplied to the ground, rather than creating disturbances in your generator and causing damage to the electrical devices connected to it.

Provide The Least Resistance:

It is important to know that the ground is the least resistant pathway, which ensures a safe route for the current without causing any harmful effects like electrocution and high chances of fire.

So, grounding your portable generator will ensure you’re for the passage of excess of the current that is generated by the hyper voltage generation.

 How To Know If Your Generator Needs Grounding?

Grounding your generator is significant for safety concerns but not all generator requires grounding and more importantly not all generator support the option for grounding. You would first have to know if your generator can be grounded or not and then proceed with the grounding procedure.

The quickest way to know about the grounding compatibility of your generator is to check its user manual. It would be written in black and white if your generator supports the grounding facility. If you don’t have access to your user’s manual or if it is not clearly mentioned that grounding is required or not then you don’t have to worry as you can manually check that.

You can check out the transfer switch to know about the grounding requirements. If a generator support grounding then there will be an option for a neutral ground conductor available on the transfer switch of your generator. If you don’t find such an option or outlet in your transfer switch then it means your generator doesn’t support grounding.

·        Tools Needed For Grounding A Portable Generator

Grounding portable generators require certain tools that are mandatory and skipping out any of these tools will hamper the whole process and you would have to start a new one with complete tools in your hand. The tools required for grounding a portable generator are given below:

Mandatory Tools

  • Grounding Rod
  • Copper Grounding Wires
  • Clamps/ Protective Fittings
  • Pliers
  • Wrench
  • Hammer

Optional Tools

  • Soldering Iron
  • Shovel
  • Water

Let’s now discuss the use of each of the compulsory tools to understand their application and significance during the grounding process.

Grounding rod or more specifically copper grounding rod is the main element to be used and is the rod by which the electrical current will be transferred to the ground. To ground a portable generator copper rod is the most suitable tool and you would have to use a 4 feet long copper rod to dissipate the electricity into the ground.

The standard copper grounding rod used in houses is 8 feet deep but if you don’t have 8 feet copper rod available then you can make do with a 4 feet-deep rod. The deeper the rod is the safer it will be for the people standing on the ground. This doesn’t mean you would unnecessarily have to go with very deep rods beyond 8 feet as electricity won’t be electrocuting people if it is buried under 4 or 8 feet of depth. For rocky surfaces, if making a straight drive into the ground is not feasible then you can drive the rod at an angle of 45 degrees into the ground.

After driving the copper rod into the ground using the hammer you would have to use the copper grounding wire to connect with the copper rod and the grounding bolt on your generator. That is to say, connect one terminal of the grounding wire with the grounding bolt of the generator and the other terminal with the copper grounding rod in the ground. You would have to use a hammer or mallet for the purpose of driving a connection with a grounding rod.

To fixate the wire with a grounding bolt and rod you would be using pliers, a wrench, and clamps. If you don’t want to use the clamps you can also make do with wire strippers.


Portable generators are a great option for a powerful power backup supply in emergency conditions and blackouts, but having a secure, grounded connection provides safety and efficient usage. Grounding makes it safe to use your generator despite bad weather or lighting issues. What if you don’t do grounding? Never compromise because it may lead to electrocution and high chances of fire that can harm you and your loved ones. Do we hope you might get how important it is to have a grounded generator and also learn the methods for how you ground a portable generator to your whole house? Check your generator manual before dropping to keep the general specification into consideration.

See Also:

What Size Generator Do I Need For A 200 Amp Service
What Size Generator Do I Need For A Freezer And Refrigerator

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About the author

Anthony Miller

Hello Guys! I am Anthony Miller, a high dynamo, communicative author, and editor of the Renewable Cop, always providing amazing, engaging, informative, unique, highly researched, and verified content based on all sorts of generators. Read more.

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