What are Solar Microinverters?

Solar microinverter is a device in a pv power generation system. It generally refer to an inverter with a power of less than or equal to 1000 watts and component-level MPPT in a photovoltaic power generation system. The full name is a micro photovoltaic grid-connected inverter. “Micro” is relative to the traditional centralized inverter. The traditional photovoltaic inverter method is to connect all the DC power generated by all photovoltaic cells under sunlight in series and parallel, and then use an inverter to invert the DC power into AC power and connect it to the grid; the microinverter inverts each component. Its advantage is that it can independently control the MPPT of each component, which can greatly improve the overall efficiency, and at the same time avoid the DC high voltage, poor weak light effect, and barrel effect of centralized inverters.

As shown in the picture, Donnergy GT serial microinverter has 2 MPPT, 1 in 1, 2 in 1, single phase, 99.76% efficiency etc. features.

How does it work?

The main working principle of microinverters is to convert the direct current (DC) power generated by photovoltaic panels into alternating current (AC) power for home or commercial power grid use. Compared with traditional centralized inverters, microinverters are usually modular, and each photovoltaic panel is equipped with a microinverter, so each photovoltaic panel can work independently. Such a design helps to improve the overall efficiency, and can also avoid various problems generated in the centralized inversion process, such as shadows, hot spots, etc.

What are its advantages?

The advantages of microinverters include independent MPPT control for each component, which can greatly improve the overall efficiency. In addition, it can also avoid the problems of centralized inverters such as high DC voltage, poor weak light effect, and single series fault affecting the operation of all components. microinverters can achieve maximum power point tracking (MPPT) at the panel level, which has advantages over central inverters. In addition, they are also reflected in the following points:

1. Safety
   Traditional centralized inverters or string inverters usually have a DC voltage of hundreds of volts or thousands of volts, which are easy to catch fire and difficult to extinguish after catching fire. microinverters have a DC voltage of only tens of volts, all in parallel, which minimizes safety hazards.
2. Intelligent
   Component-level monitoring, the working status of each component can be seen in the ECU.
3. Efficient power generation
   The MPPT at the component level will not stop because one of the solar panels stops working, reducing the impact of shading on power generation; the weak light effect is good, because the starting voltage is low, only 20V, it can work even when the light is weak, and always maintain the highest power generation.
4. Long service life
   Usually, the design life of microinverter is 25 years, and that of traditional inverter is 10 years, which can reduce a lot of maintenance work
5. Convenient and beautiful
   There is no need to build a special distribution room. microinverter can be directly installed behind the component or on the bracket. Because it is a parallel structure, it can be directly installed when the scale is increased later without changing the previous configuration.
6. Expansion design
   If there is not enough budget at the beginning, and you want to experience the benefits of solar energy system, and then expand it according to the needs, what is a good solution? At this time, you can consider microinverter solar energy system. You can start with a few hundred watts and build an independent solar energy system for your own home. The inverter and solar panel are paired in a 1 to 1 or 1 to 2 form, and the same mode can be used for expansion in the future.
   In general, the performance is high efficiency, low cost of expanding solar panels, independent solar panels, and the output power will not be reduced when one of them is shaded. It is continuous, stable, efficient, and easy to expand.

Should I buy Solar microInverter?

microinverters are often used on the roofs of residential houses due to their characteristics. The end result is that microinverters allow you to generate more electricity from the same solar panels. The electricity generated in areas where trees or other obstacles block the solar panels is delivered to the grid for profit, so microinverters are worth investing in.

How to buy Solar system kits?

Microinverter power/solar panel power = quantity. For example, the 800W GT800TL can be connected to two solar panels with 400W input power. You can choose the microinverter solar system accessories we provide.