I won't continue but let me mention one thing. My day job is in industrial automation and deal with some serious power including one 1000 Hp motor running of 6 Kv, another 2000 Hp motor running of a 6 Kv variable frequency drive weighing 7,5 tons (the drive not the motor) and several other 200 Hp plus motors on regular 400 V, not to mention the rest of the smaller ones.
Solar panels alone, we have more than 3 Mw (3000 kw) installed so, that's a lot of energy to keep under control and many RCD's, so, I really need to know something about the field