The global portable generator industry has the potential of generating almost $5 billion by 2022. The whole generator market expects more profits by 2024.

This growing popularity is due to frequent power outages. The ever-increasing population creates a rise in electricity consumption.

Get a generator and keep your lights on!cAre you shopping for a generator for your home or business? Which features are essential?

What capacity do you need? Here’s a guide to help you know how to choose a generator. We definitively ranks 5 of the best Generac portable generators on

1. Know Your Power Requirements

Learning how much power you’ll need is essential. It’ll help you narrow down your options.

The measurement of a generator’s power output is in watts. Learn the number of watts a backup generator offers. This determines how many appliances and lights you can run at once.

Ensure you know the maximum and rated output of a generator before purchasing one. Maximum output is the number of the highest amount of watts a generator can produce.

It doesn’t depend on the period in which the generator can sustain such power. Rated power is the number of watts a generator can produce for an unlimited amount of time.

You can relate the maximum output to short bursts of power. The consistency and quality of a generator’s power determine its efficiency.

Begin by noting down the appliances you need running while the power’s down. Add up their watts to estimate your power requirements.

You may find your essentials’ output’s about;

  • 60-300 watts for computers
  • 60-600 watts for lights
  • 300 watts for television
  • 600-1,200 watts for microwave
  • 700-1,200 watts for refrigerator
  • 1,500 watts for the portable heater

Ensure you also know if the generator should run a whole building or sections. Portable generators range from 3,000 – 10,000 watts.

Standby generators range from 5,000- 30,000 watts. Once you know your power needs at home or business, you can find the right generator.

2. Type of Fuel

The most typical fuel types for standby generators are diesel, natural gas, and propane. Gasoline is a poor option for standby systems.

It has a relatively brief life of stability. When selecting diesel, propane, or natural gas, you should consider the cost.

The cost also depends on the size of the generator. Availability of the fuel depending on your location is another essential factor.

Diesel and propane are readily available. But, they may need refilling during a lengthy power outage.

Propane might not be an option within the cities in some states.  For portable generators, diesel engines are more efficient than gasoline ones.

Diesel generators are durable and need maintenance less often. They’re ideal for operating large systems.

But, gasoline generators are perfect for emergency usage. Diesel can be expensive, but the engines use less fuel.

They also produce more harmful gases than gasoline engines. Generators diesel for sale offer different types of generators to suit all your needs.

3. Type of Generator

There are three primary types, including standby, portable, and inverter.


You install standby generators permanently. They automatically kick on when the power’s down.  Also, standby systems can run on propane or natural gas.

They’re expensive, ranging from $3,000 to $6,000 depending on the watts. You incur more costs due to labor.

Standby generators need an experienced electrician to install them. They supply more power than portable and inverter generators.

When a standby generator needs maintenance, it’ll inform you. It runs a self-diagnosis process. If your power goes out often, then you need a standby system.


You can move around portable systems. They’ve different sizes depending on the location you want to place them.

If you need a generator for outdoor business activities, buy a small size. But, if you need one for your home, you can buy a bigger size.

Portable generators are less expensive than standby systems. They typically use gasoline, which you must store in large quantities.

Add a stabilizer to your fuel to prolong storage. You can use portable systems anywhere. This makes them ideal for outdoor activities.

Ensure you place a portable generator at least 20 feet away from your house or any other structure. Again, keep them in enclosed spaces.

Remember to keep the exhaust facing away from the house. All these are necessary as safety precautions.

Portable systems produce high levels of carbon monoxide. This gas kills about 149 people every year in the United States.

Some systems also offer electric starting. Portable generators range from $400 to $1000.


You can also move around inverter generators. But, they’ve more complex engines than portable models.

Thus, inverter systems cost more than portable generators. They produce fewer emissions and function more efficiently.

But, remember to follow the same safety precautions, even with these models. Inverter models range from $500 to $4000.

4. How to Choose a Generator Depending on Noise

If you don’t want much noise, you can opt for inverter generators. They’re quieter than the others because they throttle up and down.

Thus, matching demand instead of running at full power every time. Inverter models are ideal for recreation or home use.

Standby systems can be loud. Your installation technician can help you with town permits like noise restrictions.

You can also choose a standby generator with advanced technology. This will help with the noise issue.

5. Warranty Duration

The standard warranty for generators ranges from 1-5 years. This depends on the type of generator.

Commercial generators have a warranty duration ranging from 2-5 years. But, an industrial generator may have a warranty period ranging from 1-2 years.

Industrial generators come with optional upgrades. Understand the duration and coverage of the generator before buying.

Other Factors to Consider

  • Voltage Need
  • Size
  • Cost
  • Installation costs
  • Maintenance costs
  • Durability

Some factors depend on the type of generator you want. But, it’s good to check them separately to get the right home or business generator.

Do It Right!

All these factors will help you know how to choose a generator. The essential thing is to buy a generator that suits all your home or business needs. Check out our blog for more informative and entertaining articles.