rsmiele
New Member
I would like to add battery storage to my existing 7-year-old 7.85kw system (7.85kw system: 24 Sunpower SPR-E20-327 panels, SolarEdge SE7600A inverter, and SolarEdge 400/405 optimizers.) Separately, I'm in the process of installing 5 additional E20-327 panels with optimizers to increase the overall system to 9.5kw (no change to the existing inverter).
Given the existing SolarEdge optimizer architecture, it looks like an AC-coupled hybrid inverter is the recommended method to add battery storage. Assume I will be adding 5 EG4 LifePower4 48V 100AH (5120wh each) rackmount battery subsystems; I haven't decided if I will start with 3 or go with a higher number of battery units. The hybrid inverter will not have any direct solar panels attached; it will only manage the battery subsystem.
Questions:
Given the existing SolarEdge optimizer architecture, it looks like an AC-coupled hybrid inverter is the recommended method to add battery storage. Assume I will be adding 5 EG4 LifePower4 48V 100AH (5120wh each) rackmount battery subsystems; I haven't decided if I will start with 3 or go with a higher number of battery units. The hybrid inverter will not have any direct solar panels attached; it will only manage the battery subsystem.
Questions:
- Is the AC-coupled hybrid inverter the preferred solution for adding battery storage to an existing PV system with optimizers?
- How is the hybrid inverter sized for battery storage only?