Household-sized small power plants are becoming more common in the country, and their growing number is causing unpleasant problems and an overloaded network more and more often.Therefore, it does not matter whether, when we install a solar system, we connect it to a single- or three-phase grid system.But what is the difference between one and three phases, and what are their advantages?We are after them now.LXXXVI of 2007 entered into force on January 1, 2008.law, the amendment to the Electric Energy Act (VET), which introduced the concept of a household-sized small power plant.With this, however, we not only got to know the concept, but the law also provided for its establishment processes and authorization procedure.However, together with the introduction of the amendment, not only the installation, operation and operation of the HMKE were recorded, but the construction and design of the associated network were also regulated in the government decree.The design of the low-voltage network was later clarified by a new law.After April 30, 2021, it was also stipulated that household-sized small power plants above 2.5 kVA can no longer be connected to a single-phase network, but only to a three-phase network.In other words, a single-phase generating unit can be connected to a low-voltage network below 2.5kVA, and if we have a system consisting of several inverters, it can also only be functional with a three-phase system.According to the rules, consumer connections can be grouped based on performance, such as:However, we should know that performance can be significantly affected by:What is the difference between one phase and three phases, which is why we should consider a possible network development before building the HMKE?It is clear from the characteristics that three-phase networks are more appropriate and safer for the design of solar systems, which is why experts recommend the creation of a three-phase network in all cases, even if the system is below 2.5 kVA.Such systems not only provide reliable operation for the solar panel system, but also guarantee reliable operation for high-performance devices, such as saunas, air conditioners, and electric hobs.On the low-voltage network, the three phases are available to the public everywhere.In other words, if we are already thinking about building a solar system, it is worth developing our own network within our property due to the network overload and the subsequent connection of potential large consumers.Even though, according to the performance of our system, we could even think of a single-phase network.The author of the article is Best Solar Kft., a key player in the solar sector, which has gained extraordinary experience and expertise not only in the residential but also in the corporate market.© ingtal.com - 1999 - 2022