Which is better micro inverter or string inverter?

When it comes to solar power systems, choosing between a micro inverter or a string inverter is an important decision that will affect the performance and efficiency of your system. Both types of inverters have their own unique advantages and disadvantages, and it's important to understand them before making a decision.

What is a micro inverter?

A micro inverter is a small inverter that is mounted on each individual solar panel. The micro inverter converts the DC electricity produced by the solar panel into AC electricity that can be used in your home or business. Each micro inverter operates independently, so if one panel is shaded or not performing at its best, it doesn't affect the performance of the other panels.

What is a string inverter?

A string inverter, on the other hand, is a larger inverter that is mounted on a wall or other central location. It is connected to a string of solar panels, which are wired together in series. The string inverter converts the DC electricity produced by the entire string of panels into AC electricity that can be used in your home or business.

Advantages of micro inverters

One of the biggest advantages of micro inverters is their ability to maximize the output of each individual solar panel. Because each panel has its own micro inverter, shading or other issues with one panel won't affect the performance of the others. This can result in higher overall energy production and a more efficient system.

Micro inverters also offer greater flexibility when it comes to system design. Because each panel has its own inverter, you can install panels in different orientations and at different angles without affecting the performance of the system as a whole.

Another advantage of micro inverters is that they typically come with longer warranties than string inverters. This is because micro inverters are designed to last longer and are less likely to fail than string inverters.

Advantages of string inverters

One of the biggest advantages of string inverters is their lower cost. Because you only need one inverter for an entire string of panels, they are generally less expensive than micro inverters.

Another advantage of string inverters is their simplicity. With only one inverter to worry about, there is less maintenance and fewer potential points of failure in the system.

Finally, string inverters are generally more efficient than micro inverters when it comes to large systems. This is because micro inverters have a small amount of energy loss due to the DC to AC conversion process, which can add up over a large number of panels.

Which one is better?

So which type of inverter is better? The answer depends on your individual needs and circumstances. If you have a small system with only a few panels, or if you have shading issues or panels with different orientations, micro inverters may be the best choice. They will offer the highest energy production and greatest flexibility.

If you have a larger system with many panels, or if cost is a major consideration, a string inverter may be the better choice. They are generally less expensive and more efficient in large systems.

Ultimately, the choice between a micro inverter or a string inverter comes down to your specific situation. It's important to work with a reputable solar installer who can help you choose the right type of inverter for your needs and ensure that your system is installed correctly for maximum efficiency and performance.