What is an Inverter Generator? Pros and Cons

By Alex McGill

Welcome to the world of cutting-edge power generation with inverter generators! If you’ve ever wondered, What is an inverter generator? you’re about to enter an electrifying realm of innovation. 

An inverter generator is a revolutionary device that combines advanced technology with efficient power production. It provides clean, stable electricity that’s safe for sensitive electronics, making it an ideal choice for both recreational and emergency use. In this comprehensive guide, we will delve into the workings of inverter generators, exploring their compact design, fuel efficiency, and impressive power output. 

Whether you’re planning a camping trip, hosting an outdoor event, or seeking a reliable backup power source, understanding the benefits and capabilities of inverter generators is essential. Say goodbye to power fluctuations and hello to a seamless power supply with these remarkable machines. Get ready to uncover the wonders of inverter generators and embrace a new era of portable power generation.

Core Lessons

  • Inverter generators provide reliable, clean power and are preferred over traditional portable generators due to their ability to deliver clean and quiet electricity.
  • They are smaller in size compared to traditional generators, making them ideal for camping trips or remote job sites where space is limited.
  • Inverter generators may not be able to generate enough power for larger appliances such as air conditioners or refrigerators and may not be suitable for high-demand applications like welding machines or industrial tools either.
  • Proper care and attention should be given to inverter generators to ensure safe and efficient operation, including wearing protective gear and monitoring usage.

What Is an Inverter Generator?

An inverter generator is a compact and advanced power solution designed to produce high-quality electricity. Unlike traditional generators, these devices generate AC power, which is then converted into DC power and “inverted” back to clean AC power. This process ensures a consistent flow of energy, making them ideal for sensitive electronic devices.

What Is An Inverter Generator

How Does an Inverter Generator Work?

Let’s delve into the details of how inverter generators generate power efficiently and quietly.

  1. Fuel Input:
    • Inverter generators typically run on various fuels like gasoline or propane.
    • The fuel is fed into the generator’s engine to initiate the power generation process.
  2. Engine Operation:
    • The generator’s engine operates by igniting the fuel-air mixture.
    • This combustion process is what produces the initial mechanical energy.
  3. Alternating Current (AC) Generation:
    • The engine is connected to an alternator that produces alternating current (AC).
    • AC is the standard form of electricity used in homes and businesses.
  4. Conversion to Direct Current (DC):
    • The generated AC is then converted to direct current (DC) using rectifiers.
    • This conversion is a crucial step for electronic devices that often run on DC power.
  5. Inversion to Clean Power:
    • Here’s where the magic happens: the DC power is inverted back to high-quality AC power.
    • This inversion ensures a smooth and stable power output, crucial for sensitive electronics.
  6. Advanced Electronics:
    • Inverter generators incorporate advanced electronics to control the speed of the engine.
    • This dynamic adjustment enables the generator to match the required power output, improving fuel efficiency.
  7. Variable Engine Speed:
    • Unlike traditional generators that run at a constant speed, inverter generators can vary their engine speed based on the load.
    • This feature contributes to reduced noise levels and increased fuel efficiency.
  8. Clean and Stable Power Output:
    • The final output is a clean and stable power supply, suitable for powering sensitive electronics like laptops and smartphones.
    • This makes inverter generators ideal for camping, outdoor events, or as a reliable backup power source.

Understanding how an inverter generator works sheds light on its efficiency, adaptability, and suitability for various applications.

What Is An Inverter Generator

How to Size an Inverter Generator?

When it comes to selecting the right inverter generator, ensuring the correct size is crucial for optimal performance. Sizing an inverter generator involves assessing your power needs and understanding the technical specifications. Let’s delve into the key factors to consider when determining the appropriate size for your inverter generator.

  1. Calculate Power Requirements: Begin by assessing the total power requirements of the devices you plan to run simultaneously. Add up the wattage of each appliance or electronic device to determine the peak power (starting watts) and the continuous power (running watts) needed. For instance if you plan to run a refrigerator (700W), a laptop (50W), and a light bulb (60W) simultaneously, the total running wattage would be 810W.
  2. Consider Surge Capacity: Inverter generators have a surge capacity that allows them to handle a momentary increase in power demand. Consider the appliances with high starting wattage, such as refrigerators or air conditioners, and ensure the inverter generator can handle the surge without overloading.
  3. Evaluate Total Harmonic Distortion (THD): For sensitive electronics like laptops and smartphones, it’s crucial to choose an inverter generator with low THD values. Lower THD values ensure a stable and clean power output, preventing potential damage to sensitive devices.
  4. Fuel Efficiency and Runtime: Evaluate the fuel efficiency and runtime of the inverter generator. Look for models that offer an optimal balance between power output and fuel consumption, especially if you plan to use the generator for extended periods.
  5. Portability and Noise Level: Consider the practical aspects of portability and noise level, especially if you intend to use the generator in various locations. Look for a compact and lightweight design without compromising on power output, and choose a generator with a noise level within acceptable limits for your needs.
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Thus, in sizing an inverter generator, a comprehensive evaluation of power requirements, surge capacity, THD values, fuel efficiency, and practical considerations like portability is essential. By carefully considering these factors, you can ensure that your inverter generator meets your specific needs and provides reliable power whenever and wherever it’s needed.

How to Choose an Inverter Generator?

Inverter generators are essential for reliable, portable power. Selecting the right one involves considering various factors to meet your specific needs.

  • Power Output: Determine your power requirements. Look for an inverter generator with a suitable wattage range that accommodates your devices and appliances.
  • Portability: Assess your mobility needs. Opt for a generator with a compact design and ergonomic handles for easy transportation.
  • Noise Level: Consider the noise factor. Look for an inverter generator with a low decibel rating to ensure quiet operation, making it ideal for camping or residential use.
  • Fuel Efficiency: Evaluate fuel consumption. Choose a generator with advanced fuel efficiency technology to maximize runtime on a single tank.
  • Clean Power Output: Ensure stable power for sensitive electronics. Look for an inverter generator with <3% Total Harmonic Distortion (THD) for clean and safe power to protect your devices.
  • Run Time: Assess the duration of operation needed. Select a generator with an optimal run time based on your usage patterns and the availability of fuel.
  • Parallel Capability: Plan for future expansion. Consider an inverter generator with parallel capability if you anticipate increased power needs, allowing you to connect two generators for additional power output.
  • Outlets and Ports: Check the available outlets and ports. Ensure the generator has the right type and number of AC and DC outlets to accommodate your devices and charging needs.
  • Brand Reputation: Research brands and customer reviews. Choose a reputable manufacturer known for reliability and customer support to ensure long-term satisfaction.
  • Warranty: Protect your investment. Select an inverter generator with a solid warranty that covers key components, providing peace of mind and support in case of issues.

By carefully considering these factors, you can confidently choose an inverter generator that aligns with your power needs and lifestyle.

What are the Uses of Inverter Generators?

Inverter generators have found widespread applications across various domains, owing to their unique features and capabilities.

  1. Powering Sensitive Electronics: Inverter generators excel in delivering clean and stable power, making them ideal for sensitive electronics such as laptops, smartphones, and medical equipment. The low Total Harmonic Distortion (THD) ensures a reliable and safe power source, preventing potential damage to delicate devices.
  2. Camping and Outdoor Activities: Portable and compact, inverter generators are a go-to choice for outdoor enthusiasts. Their quiet operation, fuel efficiency, and lightweight design make them perfect companions for camping trips, tailgating events, and other recreational activities where a reliable power source is essential.
  3. Backup Power for Homes: Inverter generators serve as excellent backup power solutions during grid outages. The ability to provide a consistent and clean power supply ensures that essential appliances and devices continue to operate seamlessly, offering homeowners peace of mind during unexpected power disruptions.
  4. Construction and Job Sites: The robust design and portable nature of inverter generators make them valuable assets on construction sites and job locations. They power tools and equipment, offering a reliable source of energy where traditional power sources may be unavailable or impractical.
  5. Energy-Efficient Operation: With their ability to adjust the engine speed based on the required load, inverter generators optimize fuel consumption. This not only contributes to cost savings but also reduces the environmental impact, making them an eco-friendly choice for power generation.

In summary, the uses of inverter generators are diverse and extend beyond conventional power generation. Their adaptability, efficiency, and reliability make them indispensable in various scenarios, catering to the evolving needs of both residential and commercial users.

Pros and Cons of Inverter Generators

When considering a power source for your needs, it’s crucial to weigh the advantages and disadvantages. Inverter generators have become increasingly popular, offering specific benefits and drawbacks.


  • Inverter generators produce power with low harmonic distortion, ensuring a stable and clean electricity output, making them ideal for sensitive electronics.
  • These generators automatically adjust their engine speed based on the required load, resulting in improved fuel efficiency, making them more environmentally friendly and cost-effective.
  • Inverter generators operate at lower noise levels compared to traditional generators, providing a quieter and more comfortable environment, which is particularly beneficial for recreational use and camping.
  • Compact and lightweight designs make inverter generators easy to transport, enhancing their suitability for various outdoor activities and on-the-go power needs.
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  • Inverter generators tend to have a higher upfront cost compared to conventional generators, which can be a factor for budget-conscious consumers.
  • While suitable for powering small to medium-sized electronics and appliances, inverter generators may not provide sufficient power for heavy-duty applications or large-scale events.
  • The advanced technology in inverter generators can lead to increased complexity in terms of maintenance and repairs, potentially requiring specialized attention.

What are Different Types of Generators?

Generators play a pivotal role in providing a reliable power source during outages or in locations without access to the grid. Understanding the different types of generators is crucial for making informed choices based on specific needs and requirements.

Generator TypeDescription
1. Portable GeneratorsIdeal for temporary power needs, these generators are compact and versatile, making them suitable for camping, construction sites, and emergency situations. Example: Honda EU2200i
2. Standby GeneratorsInstalled permanently and automatically provide backup power during outages. Commonly used for homes, businesses, and critical facilities.
3. Inverter GeneratorsDeliver clean and stable power, making them suitable for sensitive electronics. They are also fuel-efficient and quieter than traditional generators. Example: Yamaha EF2000iSv2
4. Diesel GeneratorsKnown for their durability and fuel efficiency, diesel generators are often used for large-scale applications, such as industrial and commercial settings. Example: Cummins QSK60
5. Natural Gas GeneratorsUtilize natural gas as a fuel source, offering a cleaner and more cost-effective solution for continuous power needs. Commonly used in residential and commercial applications.
6. Wind GeneratorsHarness wind energy to generate electricity, making them a sustainable option for remote areas. Typically used in conjunction with battery storage systems.
7. Solar GeneratorsConvert sunlight into electricity through photovoltaic cells. An eco-friendly solution for both residential and commercial purposes. Example: Goal Zero Yeti 3000

Understanding the characteristics and applications of each type of generator is essential for making informed decisions based on specific power requirements and environmental considerations.

What is the Difference between an Inverter and a Generator?

When it comes to a stable power supply, understanding the disparities between an inverter and a generator is crucial. These devices play distinct roles in providing electricity, each with its own set of advantages and limitations.

Primary FunctionConverts DC (Direct Current) to AC (Alternating Current), providing a steady power output.Produces electrical power by burning fuel or utilizing other mechanical methods. Offers a continuous power supply.
PortabilityGenerally lightweight and portable, making them suitable for outdoor activities and camping.Tends to be bulkier and heavier, limiting mobility and portability.
Fuel DependencyOften powered by batteries, solar panels, or a vehicle’s electrical system.Relies on conventional fuels such as gasoline, diesel, or propane for operation.
Noise LevelOperates quietly, producing minimal noise during its functioning.Can be noisy, emitting sound due to combustion engines or other mechanical components.
EfficiencyHigh efficiency as it only produces the power needed, reducing fuel consumption.Continuous running, which may result in fuel wastage during periods of low power demand.
CostInitial cost might be higher, but the long-term savings on fuel expenses can offset this.Generally has a lower upfront cost, but ongoing fuel expenses can accumulate over time.

In summary, the choice between an inverter and a generator depends on specific needs, with inverters excelling in portable and efficient power supply, while generators offer a continuous and cost-effective power source.

You can read the difference between an inverter and a traditional generator that will help you choose the best out of them. Moreover, if you are interested in Honda generators but are perplexed about their cost, you can read why Honda generators are so expensive here.

Maintenance Tips for Inverter Generators

When it comes to ensuring the longevity and optimal performance of your inverter generator, a proactive approach to maintenance is key. Here are some essential tips to keep your generator running smoothly:

  1. Regular Oil Checks:
    • Ensure you check the oil level consistently to prevent engine damage and maintain optimal lubrication.
  2. Air Filter Inspection:
    • Regularly inspect and clean the air filter to promote efficient airflow and protect the engine from dust and debris.
  3. Fuel System Maintenance:
    • Stale fuel can clog the system. Periodically drain and replace the fuel to prevent carburetor issues.
  4. Spark Plug Examination:
    • Check the spark plug for signs of wear or deposits. Replace it if necessary to guarantee a reliable ignition.
  5. Battery Care:
    • If your inverter generator has a battery, ensure it’s charged regularly to avoid starting issues during crucial times.
  6. Inspect for Leaks:
    • Regularly check for fuel or oil leaks. Addressing these issues promptly can prevent more significant problems down the line.
  7. Run the Generator Regularly:
    • Even if you’re not using it frequently, run the generator for a short period to keep the internal components lubricated and in good working condition.
  8. Keep It Clean:
    • Remove dirt, debris, and dust from the generator’s exterior regularly to prevent overheating and ensure efficient cooling.
  9. Store Properly:
    • If not in use for an extended period, store the inverter generator in a cool, dry place and follow the manufacturer’s guidelines.
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Remember, a well-maintained inverter generator not only lasts longer but also provides reliable power when you need it most.

Safety Tips for Inverter Generators

When it comes to using inverter generators, ensuring safety is paramount. Follow these tips to keep yourself and your equipment protected.

  • Proper Ventilation is Key: Ensure your inverter generator operates in a well-ventilated area to prevent the buildup of harmful fumes, protecting both you and the generator.
  • Regular Maintenance Matters: Keep your generator in top shape by performing routine checks on oil levels, fuel filters, and spark plugs to guarantee smooth and safe operation.
  • Grounding for Safety: Ground your inverter generator properly to reduce the risk of electric shock. Use a grounding rod and cable for an added layer of protection.
  • Distance from Structures: Maintain a safe distance between the running generator and any structures to minimize the risk of fire hazards and ensure adequate airflow.
  • Carbon Monoxide Awareness: Stay alert to the dangers of carbon monoxide. Position your generator far from living spaces, and use carbon monoxide detectors in enclosed areas.
  • Load Management: Avoid overloading your inverter generator. Check the rated capacity and distribute the load evenly to prevent damage and enhance overall safety.
  • Emergency Shut-off Knowledge: Familiarize yourself with the emergency shut-off feature on your generator. It’s crucial for quick response in case of malfunctions or emergencies.
  • Weather-Proofing Precautions: Shield your inverter generator from adverse weather conditions using appropriate covers or enclosures to safeguard against water damage and rust.
  • Training and Education: Equip yourself with the necessary knowledge by reading the user manual thoroughly. Understanding the proper operation can prevent accidents and ensure longevity.

Remember, these safety tips are essential for maximizing the benefits of your inverter generator while minimizing potential risks.


We conclude what is an inverter generator on the note that inverter generators are a great tool for many uses – from camping to construction sites. They’re reliable, efficient and can be used safely with the right precautions in place. But the best part about them is that they provide consistent power in any situation – no matter where you are or what you need it for.

Take this story as an example: A family was camping on a remote beach, far away from any outlet. Without an inverter generator, their trip would have been ruined – but instead, thanks to their trusty generator, they were able to enjoy their time in nature without worrying about power shortages. That’s the beauty of these machines; like a lighthouse beacon in a stormy night, inverter generators provide steady light when you need it most!


  1. Development of 500 W PEM fuel cell stack for portable power generators
  2. Modeling low-bandgap thermophotovoltaic diodes for high-efficiency portable power generators
  3. Biomechanical energy‐driven hybridized generator as a universal portable power source for smart/wearable electronics
  4. Portable fuel cell power generator

Frequently Asked Questions

How loud is an inverter generator?

The noise level of an inverter generator depends on the model. Generally, they are much quieter than traditional generators and can produce a sound ranging from 45 to 60 decibels – about as loud as a normal conversation.

How much does an inverter generator cost?

The cost of an inverter generator can vary widely, so it’s wise to shop around. In general, you get what you pay for – so don’t be penny-wise and pound-foolish! Prices range from a few hundred dollars up into the thousands.

How long does an inverter generator last?

An inverter generator typically lasts from 5 to 10 years, depending on use and maintenance. Regular servicing and proper storage will help it last as long as possible.

Does an inverter generator require regular servicing?

Yes, an inverter generator requires regular servicing to ensure it runs smoothly and efficiently. Despite the extra cost and effort, this will save you money in the long run as it will prevent more serious issues down the line.

Can an inverter generator be used in extreme weather conditions?

Yes, an inverter generator can be used in extreme weather conditions. It’s designed with advanced technology to handle tough weather and keep running smoothly. Plus, the quiet operation won’t disturb anyone even when it gets really cold or hot outside.

What is the difference between a regular generator and an inverter generator?

Inverter generators stand out from regular generators in various ways. They excel in being quieter during operation, boasting higher fuel efficiency, and delivering cleaner power—especially crucial when powering sensitive electronics or medical devices.

What’s the advantage of an inverter generator?

An inverter generator represents a newer breed of portable power sources, featuring electronic enhancements. Its automatic adjustment of engine speed based on electrical demand, unlike the constant speed of traditional generators, significantly reduces both fuel consumption and noise levels.

What will a 2000 watt inverter generator run?

A 2,000-watt inverter generator has ample capacity to power various small household items such as toaster ovens, coffee makers, lights, and computers.

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