Arob
New Member
I'm considering installing a new system on my garage and tying into my existing Enphase system. I won't do a critical loads subpanel, the Span Panel already serves that function and is technically a subpanel. I don't plan to sell back to grid, but I need a grid-tie system for AC coupling (I think). I am no expert here so go easy on me.
Current System
Enphase system with IQ7x inverters, 2 x Enphase 5P's, 13 Panasonic Modules and Span Smart Panel with Remote Meter Kit. System is solid, works fine. The Span is very cool.
Proposed New System
I have room on my garage for 6 modules. I can wire them back to the basement in my house where I would install battery and inverter. I'm not married to any particular brands of gear. I have the EG4 battery and Sol-Ark 5K so far because they seem to be capable.
Where to Connect New System ?
The is where I'm not clear and if this is possible at all. Would using the output of a grid-tie inverter and making any of these connections work? I contacted Span and they said connecting to the panel is fine as long as your using a grid-tie certified inverter. They couldn't speak to using two systems. I contact Sol-Ark and they weren't much help answering my questions. I haven't reached out to Enphase yet. The 3 connection possibilities I'm seeing are:
1. Can I connect to the Enphase controller? This is where AC from my existing panel comes in, after going thru the combiner.
2. Can I connect the AC out of the inverter to the combiner? Can the AC phase of the inverter work with Enphase inverter output?
3. Will connecting the AC out of the inverter work connecting to Span panel? What would happen in a grid down situation.
Current System
Enphase system with IQ7x inverters, 2 x Enphase 5P's, 13 Panasonic Modules and Span Smart Panel with Remote Meter Kit. System is solid, works fine. The Span is very cool.
Proposed New System
I have room on my garage for 6 modules. I can wire them back to the basement in my house where I would install battery and inverter. I'm not married to any particular brands of gear. I have the EG4 battery and Sol-Ark 5K so far because they seem to be capable.
Where to Connect New System ?
The is where I'm not clear and if this is possible at all. Would using the output of a grid-tie inverter and making any of these connections work? I contacted Span and they said connecting to the panel is fine as long as your using a grid-tie certified inverter. They couldn't speak to using two systems. I contact Sol-Ark and they weren't much help answering my questions. I haven't reached out to Enphase yet. The 3 connection possibilities I'm seeing are:
1. Can I connect to the Enphase controller? This is where AC from my existing panel comes in, after going thru the combiner.
2. Can I connect the AC out of the inverter to the combiner? Can the AC phase of the inverter work with Enphase inverter output?
3. Will connecting the AC out of the inverter work connecting to Span panel? What would happen in a grid down situation.