Hey Everyone,
I could really use some help clarifying the Panel Limit feature versus the Power/Current Limit (PCS) settings for Powerwall 3.
Here’s my current understanding — and please correct me if I’m wrong:
Also, here's one of their examples:
I could really use some help clarifying the Panel Limit feature versus the Power/Current Limit (PCS) settings for Powerwall 3.
Here’s my current understanding — and please correct me if I’m wrong:
- The Panel Limit feature is configured via the Tesla Site Controller and dynamically manages total current from all sources (grid, solar, Powerwall) into the main panel. It’s supposed to bypass the 120% rule by keeping total current below a set threshold (e.g., 80% of the panel rating).
- The Power/Current Limit (PCS) for Powerwall 3 only limits each battery’s output (to 48A, 41.7A, 31.7A, or 24A), but doesn’t offer full panel protection, so you’d still need to comply with the 120% rule unless additional steps like a breaker derate are taken.
My questions:
- Is it correct that only the Panel Limit feature can be used to bypass the 120% rule, and PCS current limits alone are not enough?
- Can Powerwall 3 only be set to those 4 fixed output levels (48A, 41.7A, 31.7A, 24A)? Is 16A even possible?
Any insight or experience would be hugely appreciated.
Also, here's one of their examples: