As February 2026 draws to a close, this bulletin highlights the four most recent publications on the McKercher Corporation updates feed. Spanning regulatory compliance, independent industry recognition, strategic partnership milestones, and technical guidance for installation teams, these posts reflect the breadth of the corporation’s editorial programme and its commitment to keeping employees, stakeholders, and customers informed.
For employees and stakeholders, each summary provides context on the post’s purpose, its target audience, and why it matters to the broader organisation. For those in customer-facing roles, these publications serve as shareable resources that reinforce McKercher Corporation’s market authority. For customers and industry observers engaging with our public content, they offer a window into the standards, partnerships, and regulatory awareness that underpin our operations.
Spotlight
- BESS installation compliance is front and centre, with WA’s Building and Energy division releasing new video guidance and reinforcing AS/NZS 4777.1 Section 8.3.3 testing requirements for multi-mode inverters in back-up configurations. This directly affects our electricians’ day-to-day commissioning processes and eNotice documentation.
- Partnership milestones reinforce operational credibility, with Perth Solar Warehouse’s fifth consecutive year as a Tesla Premium Certified Installer documented through a comprehensive collaboration narrative covering seven years of shared milestones, quality auditing, and strategic alignment.
- Independent industry data confirms PSW Energy’s market position, with the 2025 SolarNerds Annual Industry Review ranking the organisation 2nd in WA for battery installations (10,398 kWh across 673 systems) and 4th for rooftop solar (6,128 kW across 724 systems) — recognition built on consistent field execution across the entire team.
- Regulatory preparedness remains a strategic priority, with the comprehensive dual-audience guide to the May 2026 SWIS connection rule changes now live — equipping both installers and homeowners to navigate increased inverter capacity limits, remote disconnection requirements, and updated inverter standards ahead of the compliance deadline.
Battery Systems: Safety and Compliance Checks
This post relays an essential update from WA’s Building and Energy division concerning the compliant installation of residential Battery Energy Storage Systems (BESS). The division has released a new compliance video, “Installing residential battery systems, safety and compliance”, alongside a companion fact sheet on grid-connected multiple-mode (hybrid) inverter testing requirements. Together, these resources reinforce the technical expectations for electricians commissioning battery systems in back-up configurations across Western Australia.
The post also reiterates the eNotice system obligations: all Notices of Completion (NoC) must now confirm that multi-mode inverters operating in partial or complete back-up mode have been tested in line with AS/NZS 4777.1 Section 8.3.3. This includes proving continuity of neutral conductors and uploading the relevant test reports and documents through the existing NoC fields.
Published: | February 25, 2026 | Compliance & Safety, Electrician Resources |
Audience: | Electricians, installation teams, technical compliance staff |
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Tesla Energy x PSW Partnership
This update outlines the complete journey of the partnership between Perth Solar Warehouse and Tesla Energy, from the initial certification in 2019 to achieving the Premium Certified Installer status for the fifth consecutive year in 2026. Unlike a standard credential announcement, this document tells the story of our collaborative efforts. It highlights shared milestones, the operational standards required to maintain Premium Certified status, Tesla’s project quality audit framework, and the strategic importance of the partnership to both organisations.
Key milestones include Perth Solar Warehouse achieving a 95% quality score in Tesla’s internal audit program, the successful installation of the first Tesla Powerwall 3 in Western Australia, co-hosting Tesla Energy Tech Talk events, and participation in the Powerwall 3 launch event in Sydney. The Premium Certified designation positions Perth Solar Warehouse among the top 5% of Tesla’s certified installer network in Australia.
Published: | February 25, 2026 | Compliance & Safety, Electrician Resources |
Audience: | Electricians, installation teams, technical compliance staff |
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SolarNerds Annual Industry Review
This post acknowledges the latest independent industry benchmarking from SolarNerds.com.au (2025 Awards Edition), which ranks PSW Energy among Western Australia’s top-performing installation companies in both rooftop solar and home battery categories. The data, derived from the Clean Energy Regulator’s REC Registry, provides a standardised, independently collected dataset for comparing relative delivery performance across the sector.
The headline figures are significant: PSW Energy ranked 2nd in WA for battery installations, delivering 10,398 kWh across 673 systems for a 3.06% market share. In rooftop solar, PSW ranked 4th with 6,128 kW across 724 systems and a 2.27% market share. These results are situated within the context of WA’s broader market — 269,913 kW of solar installed across 30,678 systems and 339,587 kWh of battery storage across 19,192 systems in 2025.
Published: | February 10, 2026 | Brands, News, Recognition |
Audience: | Employees, stakeholders, industry observers, prospective customers |
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New Solar & Battery Requirements — May 2026
This is one of the most strategically important publications McKercher Corporation has released in early 2026. Written as a comprehensive dual-audience guide, it addresses both solar installers preparing for regulatory compliance and homeowners planning their renewable energy investment ahead of the 1 May 2026 deadline. The post covers three major changes: increased inverter capacity limits (up to 30 kVA for standard connections), mandatory remote disconnection capability requirements, and updated inverter standards under AS/NZS 4777.2:2020.
The post is structured with dedicated sections for each audience. Homeowners receive clear, accessible guidance on whether their existing systems are affected, what to ask installers when obtaining quotes, and the future opportunities that compliant systems unlock (virtual power plants, flexible export arrangements). Installers receive precise technical requirements, retailer-specific process guidance for Synergy’s DER functionality, and information on the CSIP-AUS communication protocol. A curated resources section links directly to Western Power, Synergy, and WA Government documentation.
Published: | January 31, 2026 | News, Energy Infrastructure |
Audience: | Solar installers, homeowners planning solar or battery installation, stakeholders |
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Closing Message
McKercher Corporation is an informed, transparent, and compliance-driven organisation. From frontline electrician guidance to independent industry validation, from partnership milestones to regulatory preparedness, this is content that works across the business.
These posts are available for all employees and stakeholders to read, share, and reference in customer conversations. If you have feedback on any of the content spotlighted in this bulletin, or ideas for future topics that would support your role, your input is welcome.
Thank you to all teams and contributors for your continued commitment to excellence.
McKercher Corporation — Powering Progress, Sustaining Tomorrow.
