Everything you need to know about photovoltaic inverters

Everything you need to know about photovoltaic inverters

What is a photovoltaic inverter?

In the photovoltaic system, the inverter represents a fundamental component for achieving considerable energy savings and, in some cases, obtaining an almost complete degree of autonomy. This electronic device is responsible for playing a crucial role in energy conversion: changing the direct current, produced by the panels under the action of the sun's rays, into alternating current. The latter is the one used in our distribution network, operating at 230 volts and a frequency of 50 Hz.

The main function of the inverter, therefore, consists in transforming the current to make solar energy compatible with the domestic and industrial electrical system. In addition to this essential task, it contributes to optimizing the performance of the photovoltaic system and guarantees greater safety, protecting it from possible damage due to overvoltages.

• Significant energy savings
• Possibility of obtaining a high degree of autonomy
• Essential conversion from direct current to alternating current
• Optimization of system performance
• Protection against overvoltage faults

Guide to Choosing the Best Photovoltaic Inverter

Selecting a photovoltaic inverter suited to your needs may seem complicated, but by following a few basic principles, you can make an informed choice. It is essential to understand that the decision must be made considering the specifics of your photovoltaic system and your needs.

Criteria for Choosing the Inverter

The first step in identifying the ideal inverter concerns the type of system: if the photovoltaic system is not connected to the electricity grid (stand alone system), the choice will mainly be between sine wave inverters and wave inverters. modified sinusoidal. Generally, modified sine wave inverters are cheaper, while maintaining good performance.

Importance of Power

The power rating is decisive when choosing the inverter. An inverter must be evaluated mainly on the basis of three parameters: continuous power, peak power, and efficiency. Making sure that the inverter has adequate power proportionate to that of the system is crucial. This means that the power of the inverter must always be higher than the power consumed by the system.

Conclusion for an Informed Choice

Identifying the photovoltaic inverter best suited to your needs requires attention to the technical characteristics and performance of the device. It is essential that the inverter can guarantee not only adequate power in relation to your system but also high efficiency over time. By following these basic criteria, it will be possible to select the inverter that best meets your needs, ensuring optimal operation of the photovoltaic system.

Photovoltaic inverter: Choosing the right model for every need

Photovoltaic inverter for domestic systems

When talking about photovoltaic inverters for domestic systems, it is essential to select the power of the inverter in line with that of the system. For example, for a 2.5 kW domestic system, it is recommended to install an inverter with a power between 2.5 and 3 kW. This ensures that the energy generated by the photovoltaic panels is adequately converted even in conditions of high energy production due to strong solar radiation. Choosing an undersized inverter could instead lead to inefficiencies in energy production and risk damage to the inverter itself.

Photovoltaic inverter for commercial system

In the commercial sector, where the systems generally have a power greater than 10 kW, the selection of the inverter becomes even more critical. If the system has a capacity of 10 kW, it is advisable to opt for an inverter with a power of 11 to 15 kW to avoid energy production problems and potential damage to the inverter mentioned above.

Key aspects in choosing a photovoltaic inverter

• Inverter capacity commensurate with the power of the system
• Adequate energy conversion, even in peak conditions
• Importance of preventing inverter damage and energy efficiency losses

The correct choice of the photovoltaic inverter is essential to guarantee the efficiency and safety of the system, both in domestic and commercial contexts.