Hello.
Admittedly, the fast is old, but I can't look at what things are written on the electrode.
First and foremost, gentlemen - SolarEdge only works with optimizers and some knowledge is needed to plan and execute these installations.
Secondly, Fronius does not and will not have a better efficiency, because the SE forces the optimal voltage on the optimizers, which allows the energy conversion efficiency to be kept constant and as high as possible. I will not mention that each module works separately, and this should be enough for people familiar with the topic of serial connections.
Third, how can you write nonsense that something is better because it works in a wider range of tensions. The purpose of the inverter is to signal any system malfunctions. There are standards that the inverter has to meet in order to connect it to the network, failure to meet the standards may result in power failure, a penalty, and in the worst cases, compensation proceedings for failure of devices in the network. SE inverters also have the ability to change the voltage range, but you must not do it !!!
Fourth, the inverters have 2 parameters as to the voltage supplied after DC, the first is the start voltage, the second is the MPP range. Usually the starting point is higher than the operating range, but not over 300V in a single-phase inverter !!! Good single-phase inverters start max from 180 V, and there are those that start below 100 V, while three-phase inverters usually start around 250 V, above 300 V, these are really sporadic cases, even it's hard for me to quickly give an example.
I can understand everything, but how can an admin speak in subjunctive mode and advise adding modules to a system that he does not know at all. It would be appropriate to at least look at the generally available datasheets and instructions. You can, also always call the equipment distributor and ask, and not blindly give inappropriate advice on the basis of "usually, it ...". SolarEdge is a completely different idea of operation and has nothing to do with all "usually" that have become commonplace in the photovoltaic industry.
Gentlemen, I'm sorry for the tone, but I have been assembling installations for over 6 years and my blood is flooding when I read something like that.
Regards
