TESLA POWERWALL 3 - EVERYTHING WE KNOW

EV Channels Review

The Tesla Powerwall 3 represents a significant evolution in home battery energy storage, building upon the foundation of its predecessors. While the nominal battery energy capacity remains consistent at 13.5 kWh, mirroring the Powerwall 2 and Plus, the Powerwall 3 boasts a substantially increased power output of 11.5 kW, a notable upgrade from the 5 kW of the Powerwall 2. A key change is the adoption of a Lithium Iron Phosphate (LFP) battery chemistry, utilizing prismatic cells known for higher efficiency and reduced heat generation compared to the lithium-ion cells in the Powerwall 2. However, a significant departure is the Powerwall 3's exclusively DC-coupled configuration, meaning it is not designed for retrofitting to existing solar systems, unlike the Powerwall 2. The reviewer highlights the sophisticated app, shared with Tesla vehicles, for optimizing energy usage and storage. Concerns are raised regarding the non-isolated PV inverter topology, emphasizing the importance of safety. Pricing and rebate eligibility remain TBD, but compatibility is limited to other Powerwall 3 units, not Powerwall 2s.