Microinvertors – an innovative solution for solar power plants

Solar energy has become one of the key sources of renewable energy, and every year more and more people are choosing solar power plants to power their homes and businesses. Along with the growing popularity of solar energy, new technologies are developing that can increase the efficiency and reliability of solar power plants. One such innovative solution is microinverters.

What are microinverters?

Microinverters are compact electronic devices used in solar power plants to convert the direct current (DC) produced by individual solar panels into alternating current (AC) for use in homes and businesses. Unlike traditional inverters, which are connected to multiple solar panels in series, microinverters are installed on each individual solar panel.


Microinverters operating principle

The microinverters operate according to the Maximum Power Point Tracking (MPPT) principle. They continuously monitor and optimize the power output of each solar panel in the system. This makes it possible to achieve the best possible efficiency and to maximize the potential of each panel, even in variable light or partial shade conditions.

Benefits of using microinverters

Optimization at the individual panel level

Microinverters provide optimization at the individual solar panel level, which means that each panel operates independently of the others. This allows each panel to operate at maximum capacity, regardless of shading or pollution that could affect the performance of a single panel. Unlike grid inverters, where the overall performance of an entire group of panels can be reduced if one panel is inefficient, microinverters can optimize the power output of the entire system.

Increase in collected energy

By optimizing the performance of each individual panel, microinverters can maximize the overall energy collection of a solar power plant. This is especially useful in installations where panels have different orientations or are subject to varying degrees of shading throughout the day. If one panel is shaded, only its output will be reduced while the other panels continue to operate at full capacity.

Improved safety and reliability

Microinverters operate at lower DC voltages than traditional inverters. The maximum DC voltage is 24V (as at the output of an individual solar panel). This reduces the risk of electric shock during installation, maintenance or emergencies, making microinverter systems safer for installers, maintenance personnel and firefighters. In the event of an emergency, the performance of the entire system is not impaired. It is possible to disconnect one of the panels and perform replacement or repair work without shutting down the entire system.

Monitoring and diagnostics

Many microinverters have built-in monitoring capabilities that allow users to monitor the performance of each individual solar panel in real time via dedicated applications or interfaces. This feature detects any problems or malfunctions early, simplifies maintenance and helps maximize overall system performance. If a malfunction occurs, the performance of the entire system is not compromised.

Easy installation and scalability

Microinverters are generally easier to install than conventional inverters because they do not require complex calculations for selecting panel groups or laying high-voltage DC current wires. In addition, microinverter systems are more scalable, making it easier to expand the solar array in the future.


Microinverters can be used in systems with different panel orientations or on different parts of the roof. This gives great flexibility in the design and installation of solar power plants, and allows maximum use of the available space for the installation of solar panels.

Pick and install microinverters

When selecting microinverters for a solar power plant, there are several key aspects to consider. You should consider the maximum power that the microinverters can handle, as well as compatibility with the selected solar panels. It is important to choose high-quality and reliable microinverters from proven manufacturers.

Selection and installation of microinverters

Microinverters are installed by attaching them to the back of each solar panel. Ensure good ventilation to dissipate excess heat and prevent overheating. It is also important to properly connect the microinverters to the electrical grid and make the necessary electrical connections according to the manufacturer’s instructions.


Overall, microinverters are an innovative solution that improves the efficiency, flexibility and reliability of solar power plants. They maximize the use of solar energy by providing independent operation of each solar panel, and provide the ability to monitor and control performance. Therefore, microinverters continue to gain popularity among solar plant owners seeking maximum efficiency and optimal use of solar energy.

Frequently Asked Questions

What types of microinverters are there?

Microinverters can be single-phase or three-phase, depending on the number of phases in the power supply. They may also differ in power and other technical characteristics.

Can I install the microinverters myself?

For safe and proper installation of microinverters, it is recommended to contact professional solar installers. They have the experience and knowledge to properly integrate the microinverters into the system.

Can microinverters be installed on an existing solar power plant?

Yes, it is possible, but it would require replacing the serial inverter on each solar panel with a microinverter.

What size microinverter do I need for my solar power plant?

The size of the microinverter depends on the power of the solar panel. It is necessary to choose a microinverter with power corresponding to the solar panel power.

What are the advantages of using microinverters?

Microinverters provide higher efficiency, flexibility and reliability for solar power plants. They improve performance, resistance to shading and allow you to control the entire system.

What is the price of microinverters?

The cost of microinverters depends on their capacity, manufacturer and other specifications. Usually the price of microinverters is higher than that of traditional series inverters, but it pays off because of the improved performance of the solar power plant.

What is the life cycle of a microinverter?

The life cycle of a microinverter depends on the manufacturer and model. They are usually warranted for 10-25 years, but can last even longer if all operating recommendations are followed.

What kind of maintenance do microinverters need?

Microinverters usually require minimal maintenance. However, it is recommended that you periodically check their operation and performance. Some manufacturers provide monitoring software that allows you to monitor each microinverter in real time and detect possible problems.

Can microinverters work with battery systems?

Yes, microinverters can be used in conjunction with battery systems. They can convert DC current from solar panels both for direct use and for charging batteries, providing a more independent and sustainable energy source.

What is the efficiency of microinverters?

Microinverters typically have a high DC to AC conversion efficiency. They can reach efficiencies of over 95%, which maximizes the solar energy generated by the solar panels.

What factors should I consider when choosing microinverters?

When selecting microinverters, consider the capacity of the solar panels, grid requirements, budget, manufacturer’s warranty, manufacturer’s reputation, and other specifications. It is recommended to contact professionals or experts in the field of solar energy for specific recommendations and selection of the best option.

Can microinverters be integrated into an existing monitoring system?

Yes, microinverters can be integrated into an existing solar plant monitoring system. Many manufacturers offer special software solutions or platforms that allow you to integrate microinverters’ data and monitor their performance along with other system components.

What are the risks of using microinverters?

Although microinverters are generally reliable and safe, there are some risks that should be considered. Improper installation or wiring of microinverters can result in improper system operation or equipment damage. You should also consider the possibility of potential incompatibility with some models of solar panels or battery systems. Therefore, it is important to seek professional advice and follow the manufacturer’s recommendations when selecting and installing microinverters.

What is the future of microinverters?

Microinverters remain one of the leading technological solutions in the field of solar energy. As technology advances and becomes more affordable, the use of microinverters in solar installations is expected to increase. Their higher efficiency, flexibility and improved functionality make them an attractive choice for solar power plant owners.

Where can I buy microinverters?

Microinverters can be purchased from specialized solar energy suppliers as well as authorized dealers and manufacturers. It is recommended to turn to reliable suppliers who offer certified equipment and a warranty on their products. You can choose a model from our catalog or contact us for consultation.

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