Tesla Powerwall and LG Chem RESU Home Battery Systems Compared

A side‑by‑side review of leading residential battery storage options highlights the Tesla Powerwall and LG Chem RESU series. The Powerwall offers a 13.5 kWh lithium‑ion capacity, 5 kW continuous output (7 kW peak), 90 % round‑trip efficiency and a 10‑year warranty. The LG Chem RESU models provide 9.8 kWh or 12.4 kWh capacities, the same 5 kW output, 90 % efficiency and also a 10‑year warranty. Both systems can store excess solar generation for backup power and grid‑independent use, but the Powerwall carries a higher price tag and requires a certified installer, while RESU pricing varies by configuration and may need compatible inverters.

In Melbourne, solar battery installations are promoted as a way to lower electricity bills, increase energy independence and provide resilience during outages. Professional installation ensures safety, compliance with Australian standards and optimal system performance. Homeowners are advised to assess energy usage and select a battery size that matches their solar output and consumption patterns.