Powerwall 3
Battery storage and a solar inverter, together.
Compare Powerwall 3 and Powerwall 3P, then explore the storage, backup and EV charging around them.
Battery storage and a solar inverter, together.
Single-phase unit. Backup is planned for your home.
Add compatible Expansions for more storage.
A new model for three-phase loads and backup.
Three-phase · Coming soon. PSW taking orders.
Add compatible Expansions for more storage.
Powerwall 3 storage: Australian specifications. Powerwall 3P storage: AU/NZ datasheet. Specifications and PSW ordering guidance reviewed 8 November 2026.
Compare the connection, backup and storage your home needs.
| Your decision | Powerwall 3 | Powerwall 3P |
|---|---|---|
| Electrical design | Single-phase unit. Can be designed for a three-phase home. | A three-phase unit. |
| During an outage | Backup on one phase only. Three-phase loads are excluded. | Supports three-phase loads and backup. |
| More storage | Each compatible Expansion adds 13.5 kWh. | One to three compatible Expansions: 27, 40.5 or 54 kWh total. Inverter output is unchanged. |
| Continuous output | Single-phase output configured for your installation. | Up to 15 kW continuous across three phases with sufficient solar at 25°C or below; up to 11.5 kW without solar or at higher temperatures, with possible further derating above 40°C. |
| Existing solar | An existing solar inverter may be retained after design checks. | Existing solar supported, subject to inverter and design checks. |
| Australian status | Configure your system and request an installed quote. | Orders open. Stock expected Jan–Feb 2027; installation Feb–Mar 2027. Dates are estimates. |
A three-phase supply does not make Powerwall 3 a three-phase backup system. Read the Australian backup guidance and Tesla’s 3P announcement.
PSW is taking orders now. Expected stock January–February 2027; installations scheduled February–March 2027. These are estimates. Earlier installation depends on listing, stock, site approvals and scheduling.
Powerwall 3P is currently ineligible for the WA Residential Battery Scheme and is not currently CEC listed. The federal discount requires an eligible listed configuration; a future CEC listing alone would not establish WA eligibility.
Powerwall 3P cannot be combined with Powerwall 2 or Powerwall 3. Existing owners should check their upgrade options.
See what each component does in your system.
Battery + solar inverter
13.5 kWh usable storage with an integrated solar inverter. Your design accounts for existing solar and backup circuits.
The Australian unit is single phase. Output and connection approvals are confirmed for your installation.
Explore Powerwall 3Guides to the equipment, planning and ownership.
A local team to plan, install and support your system.
Powerwall 3 can be designed for a three-phase home, but backup supports one phase and excludes three-phase loads. Powerwall 3P has a three-phase inverter. Start with the appliances you want to support.
Tesla design guidanceYour agreed backup circuits. Available storage, running demand and appliance starting loads determine what can run together. Your quote confirms the equipment and scope.
Discuss backupA suitable design may retain it. We check the inverter’s model, capacity, connection and operation during backup. Bring its details and a recent electricity bill.
Add a batteryExpansion adds storage, not inverter output. Each compatible Powerwall 3 Expansion adds 13.5 kWh; the supported number and installation arrangement need checking.
Expansion specsPSW Energy supports installation, handover and aftercare through PSW Life Support. Tesla’s manufacturer warranty and your quoted installation cover have separate terms.
Find supportPSW is taking orders for Tesla’s three-phase home battery. Powerwall 3P is currently ineligible for the WA Residential Battery Scheme. Here’s what its Australian ratings mean for your home.
Read the articlePSW’s 2026 milestone, and the practical lessons for choosing solar, storage, backup and support for a WA home.
Read the articleCompare Tesla Powerwall 3 and Powerwall 2 in Australia, with practical guidance for existing owners, new systems and WA connections.
Read the articleYour existing inverter and solar output help determine the retrofit path. Check equipment compatibility and the circuits you want backed up before deciding what to keep or replace.
Read the articleSize a battery around evening use and backup needs. Tiered incentives affect the discount on extra capacity, so compare the additional cost with the electricity you expect to use.
Read the articleHeat Mode helps Powerwall 3 manage cold cells automatically. Read the published test conditions separately from expected performance at your WA home.
Read the articleUnderstand the programmes, eligibility checks and written-quote details.
Read the guide
