News & bulletins.
The public archive for operational bulletins, company records, compliance updates, and industry commentary from McKercher Corporation and its Western Australian businesses.
64 records published across the twelve months to Aug.
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- McKercher Corporation
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Maintained byMcKercher CorporationPublishedReviewed
Customers, Employees, Industry, Installers, Partners, Public
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Installer bulletin: CSIP-AUS registration for Powerwall 3 in WA
Guidance current at 14 August 2026 states that AC-coupled Powerwall 3 configurations are not supported in any capacity. Two pathways remain: new solar wired directly to the integrated inverter, or migration of suitable existing PV onto it. This bulletin sets out those pathways, the CSIP-AUS registration process, the export limit position, and the two failures behind most registration problems on site.
Installer Bulletin: Powerwall 2 Recall Now Routes Replacements Through the Original Installer
The Australian Competition and Consumer Commission updated recall PRA 2025/20611 for the Tesla Powerwall 2 on 12 August 2026. The notice now directs owners of affected systems to contact their original installer to schedule the free replacement, with Tesla support as the fallback. The affected units and the underlying hazard are unchanged.
Installer Bulletin: What the CER's Battery Inspections Are Failing
The Clean Energy Regulator reported results for 2,642 solar battery inspections finalised by 8 June 2026, with recurring installation findings.
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.
Installer Bulletin: WA Fine Over Apprentices Directed to Test Live Circuits
Building and Energy has secured a conviction against an electrical worker who directed two junior apprentices to conduct live testing on energised lighting circuits without appropriate supervision.
Installer Bulletin: $25,000 in WA Fines Over Battery Back-Feed Wiring and a False Notice of Completion
Western Australia's Director of Energy Safety prosecuted an electrical contractor and an electrical worker over a Maylands battery installation wired so it could unintentionally back-feed the network during an outage. The contractor was fined $20,000 for submitting a notice of completion that declared the work complete, compliant and safe. The worker was fined $5,000.
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: Installers Rank Sigenergy First in 2026 Battery Survey
SolarQuotes asked 125 vetted installers which home battery they would put in their own home. Sigenergy ranked first while a product recall was open at publication.
Installer Bulletin: CER Suspends 21 Companies and Warns on Verification Selfies
The Clean Energy Regulator's latest enforcement update suspends 21 companies from the SRES, moves to bar a retailer for three years, and puts installer verification selfies under active monitoring.
Installer Bulletin: Sigenergy Moves Power Sensor Range In-House With New Part Numbers
A July 2026 Sigenergy product notice recorded four new -WI power sensor part numbers and manufacturer-stated RS485 compatibility.
Dates, sources, authorship, and corrections remain visible
Pulse includes current guidance, dated company records, and operational commentary. The editorial standard explains how those forms are sourced, reviewed, and corrected.