Generator Showdown: Non-Inverter vs. Inverter
Uncover the Pros, Cons, and Top Picks for Your Power Needs
- Introduction
- What is a Non-Inverter Generator?
- What is an Inverter Generator?
- Why Choose a Non-Inverter Generator?
- Why Choose an Inverter Generator?
- Making the Right Choice
- Conclusion
Introduction
Recently, a customer asked me whether a Victron inverter charger could work with a “dirty power” generator or a non-inverter generator. The answer is that most high-quality inverter chargers, including Victron, can handle these types of generators. However, in the past we’ve occasionally encountered in rare occasions issues where less reliable brand generators failed to connect or perform adequately with these chargers.
A conversation with a colleague highlighted another concern, one of his customers recently dealt with a situation where a non-inverter generator caused significant damage to his fridge.
One of my customers recently showed me a generator with a variable voltage adjustment button on the side, designed to change the voltage to meet specific requirements. While this feature can be useful for certain applications, it could pose a significant risk for those who are unaware of its presence or don’t fully understand how to use it. Without proper guidance, adjusting the voltage incorrectly could result in serious damage to sensitive devices. It’s a reminder of how crucial it is to thoroughly understand your generator’s features and limitations before using it and or purchasing one.
With that in mind, I want to get into the key differences between these two types of generators and why it’s essential to choose the right one for your setup.
Generators play a vital role in providing power during outages, for off-grid applications, or even at remote job sites. However, not all generators are created equal. The two main categories—non-inverter generators (conventional generators) and inverter generators—serve different purposes and cater to varying needs. Let’s take a look at the key differences, advantages, and disadvantages of each type to help you make an informed decision.
What is a Non-Inverter Generator?
A non-inverter generator generates AC power directly through a mechanical process, using a constant engine speed (usually 3,600 RPM) to produce electricity. This is the traditional type of generator that has been around for decades.
Key Features:
- Power Output: High wattage, suitable for running heavy appliances like refrigerators, air conditioners, or construction tools.
- Cost: Generally less expensive than inverter generators.
- Durability: Built tough for long-term heavy-duty use.
- Fuel Consumption and Noise: Consumes more fuel and produces more noise since it always runs at a fixed speed, regardless of load.
- Power Quality: Voltage fluctuations can occur, making the output less safe for sensitive electronics.
Popular Brands:
- Generac (e.g., GP Series)
- Honda (e.g., EM Series)
- Briggs & Stratton
What is an Inverter Generator?
An inverter generator takes raw AC power generated by the engine, converts it to DC (direct current), and then inverts it back to clean, stable AC power. This process produces electricity that is safer for sensitive devices.
Key Features:
- Power Quality: Clean and stable power, with less than 3% total harmonic distortion (THD), ideal for electronics like laptops and smartphones.
- Efficiency: Adjusts engine speed based on load, which reduces fuel consumption and noise.
- Portability: Typically lighter and smaller, making it a favorite for camping, tailgating, and RV use.
- Noise Level: Runs much quieter than non-inverter models.
- Cost: Generally more expensive due to advanced technology.
Popular Brands:
- Honda (e.g., EU Series)
- Yamaha (e.g., EF Series)
- WEN (e.g., 56200i)
Why Choose a Non-Inverter Generator?
- High Power Needs: Ideal for construction sites or powering large appliances during outages.
- Lower Cost: If budget is a primary concern, non-inverter models are more affordable.
- Durability: Built to handle demanding applications and heavy use over long periods.
Why Choose an Inverter Generator?
- Power Quality: Perfect for modern electronics, which require clean and stable energy.
- Fuel Efficiency and Quiet Operation: Great for camping, RVing, or home backup with noise restrictions.
- Portability: Light and easy to transport, ideal for small-scale or mobile applications.
Making the Right Choice
For our off-grid customers, especially during winter or in areas with significant obstructions like dense tree cover or mountains, generators play a critical role. They’re often essential for maintaining battery levels when solar panels can’t produce enough power.
When choosing a generator, there are key factors to consider. Do you prefer the convenience of a remote start? Imagine needing to start your generator during a cold, rainy, or snowy night, would you want to venture outside to turn it on manually? Remote start options, or even automatic start features, can make all the difference in such situations.
Additionally, understanding your system’s compatibility is crucial. Generators come with various start configurations, such as manual pull starts or electric starts, which are particularly important if you need to start the generator remotely or automatically. Options like two-wire, three-wire, or four-wire starts significantly affect the installation process and how smoothly the generator integrates with your system. Does your inverter/charger or solar system support these connection types?
If you’re considering purchasing a generator for your off-grid or grid-tied home as a backup power source, don’t hesitate to reach out. We’re here to provide expert advice to help you choose the right generator for your needs.
Conclusion
Both non-inverter and inverter generators have their advantages, depending on your needs. Non-inverter generators are rugged and reliable, making them ideal for handling heavy loads and performing in tough environments. On the other hand, inverter generators are compact, fuel-efficient, quiet, and designed to safely power sensitive electronic devices.
Before making a purchase, take advantage of the wealth of information available online to research your options thoroughly. Be cautious of brands you’ve never heard of or generators that seem suspiciously cheap, they might not offer the reliability or quality you need.
If you already own a solar system, it’s crucial to consider its compatibility with the generator you’re planning to buy. Key factors include the inverter/charger brand and capabilities, such as automatic generator start (AGS) options. Determine whether the generator supports the required connection type, two-wire, three-wire, or four-wire start. Addressing these critical questions before purchasing can save you from costly mistakes later.
At IOTG Solar, we prioritize helping you select the right equipment for your needs, whether it’s integrating a generator into your solar setup or choosing the best backup power solution.
Let us know your energy goals, and we’ll help you design a smarter, more efficient power solution that works for you.
IOTG Solar…
Keeping you powered through education.