EscapedAritst
New Member
I am building two homes that now have two similar solar systems. Each has four eg4 6500ex inverters (with pv and batteries, of course). One of these two systems is backed up by the utility and the other by a generator. My question is basically the same for both utility and generator backup power.
1. I run in SBU priority.
2. When the batteries are low, I want the utility/gen to charge them as well as supply loads (especially in the case of the generator version).
3. I want to be able to disconnect the solar system entirely and have the utility/gen supply 100% of the loads (for servicing or system failure).
4. I want a non-technical home owner to be able to make this switch.
So, it seems that a manual transfer switch would have to do three things.
1. Disconnect the inverters' output to the house
2. Disconnect utlity/gen's input to the inverters
3. Connect the utility/gen to the house
I'm pretty sure the first two above need to be successful before the third is connected. Does such a switch exist? It must but I can't find anything. Any help on a manual switch between a solar system and utility/gen would be appreciated.
1. I run in SBU priority.
2. When the batteries are low, I want the utility/gen to charge them as well as supply loads (especially in the case of the generator version).
3. I want to be able to disconnect the solar system entirely and have the utility/gen supply 100% of the loads (for servicing or system failure).
4. I want a non-technical home owner to be able to make this switch.
So, it seems that a manual transfer switch would have to do three things.
1. Disconnect the inverters' output to the house
2. Disconnect utlity/gen's input to the inverters
3. Connect the utility/gen to the house
I'm pretty sure the first two above need to be successful before the third is connected. Does such a switch exist? It must but I can't find anything. Any help on a manual switch between a solar system and utility/gen would be appreciated.