I am with you. I also would like a response from noob or gunny about 230.40 ex 2 vs supply side connection. I keep saying it can be essentially the same thing but all i get is "no" without any specific response with reasons as to why I am wrong. Is it whether that set of SEC is serving only PV stuff? If so does adding a recep or ight turn it into 230.40 ex 2. Then as WW said, seems you get the benefits of supply side without it being one.I'm not really arguing with anyone. I just can't get the better of my curiosity. The post you quoted was a series of genuine questions, for you or ggunn. They remain unanswered for me.