How Long Does A Generator Last?

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A standby generator will typically last around 25 to 30 years or 10,000 hours of run time.

Portable generators will typically last around 5 to 10 years or about 4,000 hours of run time.

That being said, how well you maintain your generator and in what situation you use it can influence these life expectancies a lot.

There are also big differences between certain generator brands. Especially in the portable generator category.

How long does a standby generator last?

According to Assurance Electrical Services, standby generators typically last around 25 to 30 years or 10,000 hours.

How well you maintain your standby generator, the brand, and how long you run the generator will influence the lifetime of the machine a lot.

Some of the more popular standby generator brands have warranties that range from 5 to 10 years or 2000 hours of service time. Whatever comes first.

At the very least, you will be able to enjoy your standby generator for these amounts of time.

Or you get a repair (if you don’t void your warranty).

How long does a portable generator last?

According to Assurance Electrical Services, a portable generator can last up to 10 years if you maintain it well.

This would come down to around 4,000 hours of service time.

However, there are big differences in the quality of different generator brands.

This and how often and long you run portable generators will influence their lifetimes a lot.

Portable generators tend to have 1 to 3 years of warranty although there are exceptions with 5 years warranty.

How to make your generator last longer

You can make your generator last longer by taking the following precautions:

  1. Change your generator oil in the right intervals
  2. Use the right fuel
  3. Keep your generator dry
  4. Store your generator the right way

There is still a limit to how long a generator can run continuously but these tips will help increase your generator lifetime.

1. Change your generator oil in the right intervals

Changing your generator oil in the right intervals helps reduce friction between the engine parts.

In turn, this will slow down wear and tear and help you get the most power out of your generator.

2. Use the right fuel

To make your generator last longer you need to use the right types of fuel.

This does not only mean using gasoline in a gas generator but also using fresh gasoline.

3. Keep your generator dry

A generator should not get wet if you want a long life expectancy.

Both while running and during storage.

While running, getting the generator wet would involve safety risks too.

4. Store your generator the right way

Storing your generator for optimal life expectancy is a combination of keeping it dry and not letting old fuel sit in the machine.

Letting your generator sit with old fuel can clog up the carburetor and make you have to replace this part.

FAQ

What is the life expectancy of a generator?

The life expectancy of a standby generator is typically around 25 to 30 years.

The life expectancy of a portable generator is typically around 5 to 10 years.

How long does a Generac generator last?

A portable Generac generator will typically last around 5 years and with good maintenance, potentially more.

A standby Generac generator will typically last around 25 to 30 years with good maintenance.

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Author:

Mats is the founder and head editor of Generator Decision. With a combination of critical thinking, tireless research, and a healthy interest in electronics he helps people find the right generators and how to use these. At this point in the journey, Mats has done research on hundreds of portable generators.