The March 2026 internal bulletin covered the following topics. Product compatibility, manufacturer claims, operating arrangements and safety instructions must be checked against current controlled sources.
Powerwall compatibility
The bulletin recorded Tesla's announcement that eligible Powerwall 3 units would be able to operate with existing Powerwall 2 systems through a software update, with Australia identified as the first market. At that time, Western Australian rollout timing had not been confirmed.
The linked article now records current configuration, software, gateway, phase and installer constraints. Compatibility is not automatic and requires a site-specific assessment against the current Australian guidance.
- Current mixed Powerwall compatibility reference
- Tesla Powerwall information for Western Australia
- Adding a battery to existing solar in WA
Sigenergy launch event
The bulletin recorded representatives of PSW Energy and Perth Solar Warehouse attending the Sigenergy Smart Energy Centre inauguration in Nantong, China, on 13 March 2026. It repeated facility, production and product statements presented at the event.
Those figures were attributed to Sigenergy and event reporting. They were not independently measured by McKercher Corporation and do not establish Australian approval, availability, performance or supply.
- Sigenergy Nantong event record
- Sigenergy SigenStor partnership record
- PSW Energy business profile
- Perth Solar Warehouse business profile
Operating locations
The bulletin recorded continuing operations across Bibra Lake and Neerabup. This is retained as organisational context for March 2026, not as a current service-area or facility-access statement.
Wet-weather roof work
The bulletin addressed slippery surfaces, weather checks, fall protection, electrical isolation, ladder security, incident reporting and stop-work authority. Those points are retained as historical staff orientation.
They do not replace a current site assessment, safe work method statement, controlled work-at-height procedure, rescue plan, training, equipment inspection, competent supervision or applicable legal requirements.
Archive sources
The Powerwall compatibility article retains a current Tesla source. The Sigenergy event record identifies incomplete direct-source retention for several event claims. The migrated bulletin did not include the controlled internal wet-weather, fall-protection or rescue documents. Current manufacturer, regulator and authenticated internal sources take precedence.
