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My house has 400A service split across two 200A main panels. Most residential battery systems including the Powerwall are designed for a single 200A panel which left me in an awkward spot. Didn't want to back feed just one panel and leave the other unprotected.
Talked to my electrician and we figured out a setup with the Anker Solix E10 that actually covers both panels. The power dock is rated for 200A and sits between the meter and the first panel as designed. We then fed the second panel from a 100A breaker in the first panel through a subpanel feed. So now both panels are downstream of the power dock and the E10 backs up everything.
The trade off is that the second panel is now limited to 100A instead of its original 200A capacity. For our actual loads that's fine because the second panel runs the garage, workshop, and outdoor stuff which never pulls anywhere near 100A simultaneously. The main panel with kitchen, HVAC, and living spaces keeps its full 200A.
Running 2 Anker E10 units with 3 packs each through the single power dock. Combined that's about 36kwh of storage and 15kw continuous output which handles both AC units and the full house load during an outage.
Posting this because I couldn't find anyone online who'd done a 400A service with the E10 and my electrician had to figure it out from scratch.
Talked to my electrician and we figured out a setup with the Anker Solix E10 that actually covers both panels. The power dock is rated for 200A and sits between the meter and the first panel as designed. We then fed the second panel from a 100A breaker in the first panel through a subpanel feed. So now both panels are downstream of the power dock and the E10 backs up everything.
The trade off is that the second panel is now limited to 100A instead of its original 200A capacity. For our actual loads that's fine because the second panel runs the garage, workshop, and outdoor stuff which never pulls anywhere near 100A simultaneously. The main panel with kitchen, HVAC, and living spaces keeps its full 200A.
Running 2 Anker E10 units with 3 packs each through the single power dock. Combined that's about 36kwh of storage and 15kw continuous output which handles both AC units and the full house load during an outage.
Posting this because I couldn't find anyone online who'd done a 400A service with the E10 and my electrician had to figure it out from scratch.