Every now and then I've run into some very knowledgable people on different subjects here. I'm hoping to find such a person now with experience/knowledge on PV inverters and battery augmented PV systems.
Specifically...
I would like to install a reasonably large PV array on my house using a battery system for storage. The goal would be to keep my grid tie but reduce usage to zero.
My initial reading indicates that all current inverter systems are capable of dealing with in excess of 400 VDC on the PV input side but normally only manage battery banks in the 24 to 48 VDC range. My interest is in using a large Li-Ion battery pack (85 KWHr) which I believe runs between 330 and 370 VDC. I think a MS battery would augment a home PV system nicely. Does anyone want to discuss the hows and whys of "Y"ing PV and battery as input to an inverter? Of particular interest would be bucking unused (by the house) PV output to charge the battery during the day such that the energy can be employed during the night.
Thanks,
Bill
Specifically...
I would like to install a reasonably large PV array on my house using a battery system for storage. The goal would be to keep my grid tie but reduce usage to zero.
My initial reading indicates that all current inverter systems are capable of dealing with in excess of 400 VDC on the PV input side but normally only manage battery banks in the 24 to 48 VDC range. My interest is in using a large Li-Ion battery pack (85 KWHr) which I believe runs between 330 and 370 VDC. I think a MS battery would augment a home PV system nicely. Does anyone want to discuss the hows and whys of "Y"ing PV and battery as input to an inverter? Of particular interest would be bucking unused (by the house) PV output to charge the battery during the day such that the energy can be employed during the night.
Thanks,
Bill