Tesla Powerwall in WA
Product compatibility, installer standards and the group history behind Tesla Powerwall delivery in Western Australia.
- Maintained by
- PSW Energy
- Status
- Published · reviewed
- For
- Customers, Installers
Maintained byPSW EnergyPublishedReviewed
Customers, Installers
Powerwall selection depends on existing equipment, backup requirements, site layout and current Tesla guidance. Compatibility and product claims should be confirmed for the specific vehicle, battery and inverter configuration.
Checks before a decision is made
Work through the identity, evidence and delivery chain. One credential, component or headline figure does not establish that the complete proposal is suitable.
- 01Architecture
Map the existing solar and switchboard
Record the existing inverter, array, phases, metering, export settings and available installation locations before choosing the Powerwall configuration.
- 02Backup
Define the loads that must remain available
Whole-home and selected-load backup produce different switchboard, power and operating requirements. Motor starting and simultaneous demand should be assessed.
- 03Capacity
Model energy and power separately
Usable energy determines duration, while output power determines which loads can operate together. Both need to be tested against the property profile.
- 04Expansion
Check generation and expansion compatibility
Mixed Powerwall generations and expansion units require current Tesla compatibility guidance. Product family names alone do not establish a supported configuration.
- 05Connection
Confirm WA network and program settings
The final system must satisfy the relevant connection, export, supported-product and virtual power plant requirements in addition to Tesla documentation.
- 06Handover
Complete registration and owner setup
Plan app registration, internet connection, operating mode setup, documentation and owner training as part of commissioning.
Product and compatibility
Review Powerwall 3, mixed-generation battery considerations and current restrictions affecting third-party claims.
Tesla Powerwall 3 Reaches Australia in August 2024
Tesla Powerwall 3 became available to order in Australia in August 2024, when Perth Solar Warehouse attended the Sydney product launch.
Powerwall 3 compatibility with existing Powerwall 2 systems
Tesla now supports eligible mixed Powerwall 2 and Powerwall 3 systems, subject to software, gateway, capacity and installer requirements.
Installer Bulletin: Powerwall 3 and Powerwall 2 Compatibility Moves to Official Firmware
Tesla confirmed in July 2026 that mixed Powerwall 2 and Powerwall 3 systems had moved from pilot firmware to an official release, with official firmware to become standard at commissioning from mid-August. That date has passed, and the parallel pilot arrangement described in the original notice has ended.
Installer Bulletin: Tesla Warns Against Unauthorised Bidirectional Charging Claims
A July 2026 Tesla Channel Partner notice disputed third-party bidirectional charging claims, including claims involving Sigenergy equipment.
Installer standards and assessment
Understand the installer framework, project assessment and service expectations attached to the Tesla channel.
Tesla Premium Installer Recognition for PSW in 2026
A retained Tesla certificate names PSW Energy and Perth Solar Warehouse as a Premium Certified Installer valid for 2026.
Installer Bulletin: Powerwall 3 Course Bundle Now Carries SAA CPD Points
Tesla has confirmed its Powerwall 3 Course Bundle is now an accredited course under Solar Accreditation Australia, worth 10 CPD points toward an accredited installer's annual requirement.
Tesla Installer Performance Score: 2025 framework
Tesla's 2025 installer briefing described a performance framework covering certification, commissioning, diagnostics, activation and customer feedback.
PSW Energy Completes Tesla Installer Onboarding
The migrated company record states that PSW Energy completed Tesla Certified Installer onboarding and offered local access to Tesla Powerwall.
Certification history and recognition
Follow the group's certification milestones, technical events and independently assessed project performance.
Tesla Premium Certified Installer Recognition in 2024
PSW Energy and Perth Solar Warehouse reported Tesla Premium Certified Installer recognition for a third consecutive year in January 2024.
Tesla Performance Excellence Award, Q4 2023
PSW Energy and Perth Solar Warehouse reported receiving a Tesla Performance Excellence Award for Q4 2023 following year-on-year Powerwall sales growth.
Tesla Energy Tech Talk 2023
A historical record of the Tesla Energy Tech Talk held in Perth by Tesla Energy, PSW Energy and Perth Solar Warehouse on 16 November 2023.
Related checks that usually follow
A structured starting point for WA property owners and installers assessing retrofit compatibility, connection requirements, rebates and commissioning.
Program guideBattery incentives and scheme eligibility in WASeparate federal certificates, WA rebates, loans and virtual power plant conditions before relying on an advertised battery discount.
Points requiring an explicit answer
Can Powerwall 3 be installed with an existing solar inverter?
Tesla states that Powerwall 3 supports major solar inverter brands and a range of existing system sizes. The specific inverter, phases, network settings and site design still require assessment before compatibility is confirmed.
Can Powerwall 2 and Powerwall 3 be used together?
Tesla publishes a dedicated backwards-compatibility pathway. Supported equipment, firmware and configuration requirements should be checked in the current Tesla documentation for the proposed system.
What is the stated energy capacity of Powerwall 3?
Tesla's current Australian support material states 13.5 kWh of energy capacity per Powerwall 3. Output and backup capability depend on the system configuration and local conditions.
Is internet access part of commissioning?
Tesla requires registration through the Tesla app and connection to the property Wi-Fi network. WA program participation can impose additional connectivity requirements.