Bulletin, Feb 26: Market position, compliance & mature partnerships

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.

Contents

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
URL:
mckerchercorporation.com/installing-residential-battery-systems-safety-and-compliance

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
URL:
mckerchercorporation.com/installing-residential-battery-systems-safety-and-compliance

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
URL:
mckerchercorporation.com/2025-solarnerds-annual-industry-review

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
URL:
mckerchercorporation.com/solar-battery-requirements-changes-from-may-2026

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. 

Installing Battery Systems —Safety and Compliance Checks for WA Electricians

WA’s Building and Energy division has released an important update for electricians installing residential Battery Energy Storage Systems (BESS). A new compliance video, accompanying fact sheet, and eNotice requirements reinforce expectations for commissioning multi-mode inverter systems in back-up configurations.

For McKercher Corporation electricians working across PSW Energy and Perth Solar Warehouse projects, this is essential reading. Compliant BESS installations protect your customers, your licence, and our team’s reputation.

Why this matters

Battery storage adoption is accelerating across Western Australia. With more households adding BESS to existing or new solar PV installations, the importance of safe, standards-compliant installations has never been greater. A correctly installed and tested BESS ensures the system operates safely and protects homeowners from potential hazards, including electrical faults, fire risks, and equipment damage.

Building and Energy’s latest guidance specifically targets the testing of multi-mode (hybrid) inverters operating in partial or full back-up mode — a configuration that is becoming standard in residential battery installations throughout the Perth and Bunbury regions.

Both resources are designed to walk electricians through the steps required to achieve a compliant BESS installation, with particular focus on the testing procedures mandated under AS/NZS 4777.1.

Key testing requirements under AS/NZS 4777.1

When a multi-mode inverter is configured for partial or full backup mode, Section 8.3.3 of AS/NZS 4777.1 specifies the testing that must be completed and documented. This includes proving the continuity of neutral conductors, a critical safety check that ensures the system’s earthing and protection arrangements function correctly when the inverter transitions between grid-connected and stand-alone operation.

 

These tests are not optional. They form part of the compliance verification process and must be documented in your test reports.

eNotice obligations

Building and Energy’s eNotice system now requires all Notices of Completion (NoC) to confirm that multi-mode inverters operating in back-up mode have been tested in accordance with AS/NZS 4777.1 Section 8.3.3. Specifically, when lodging a NoC, electricians must:

  • Confirm that continuity of neutral conductors has been proven
  • Upload the relevant test reports and supporting documentation using the existing fields in the NoC

This applies to all residential BESS installations where the inverter operates in partial or full back-up mode. Ensuring your NoC is complete and accurate avoids delays, re-inspections, and potential compliance issues.

What this means for our team

At McKercher Corporation, compliance is embedded in how we operate. For electricians working on PSW Energy and Perth Solar Warehouse projects, this update reinforces existing best practices:

  • Watch the new Building and Energy video before your next BESS installation.
  • Review the fact sheet on hybrid inverter testing requirements
  • Verify that all NoC submissions include the required confirmations and uploaded test reports

Staying ahead of compliance requirements protects homeowners, supports industry standards, and maintains the trust that our customers place in McKercher Corporation businesses.

Further resources

For previously published information and additional guidance from Building and Energy on battery storage installations, visit: Testing Requirements for Grid-Connected Multiple Mode (Hybrid) Inverters

Source: WA Department of Mines, Industry Regulation and Safety — Building and Energy Division
Published by McKercher Corporation for PSW Energy and Perth Solar Warehouse electricians.

Bulletin, Jan 26: Leadership, System Upgrades & Strategic Partnerships

As January 2026 draws to a close, this bulletin consolidates key announcements published across the McKercher Corporation family of brands, including PSW Energy and Perth Solar Warehouse. The month has been marked by significant leadership transition, operational infrastructure improvements, strategic partnership expansion, regulatory preparation, and continued commitment to data security—reflecting the corporation’s focus on sustainable growth and operational excellence as we move deeper into the new year.

Contents

Key points

  • January 2026 marks a pivotal leadership transition with Nicole Bilman's appointment as CEO of PSW Energy, signalling continuity of operational expertise and strategic vision for the brand's next growth phase.
  • Significant operational investments are underway, including a comprehensive customer service platform upgrade designed to enhance inquiry management, project tracking, and support responsiveness across all McKercher Corporation brands.
  • Strategic partnerships and regulatory preparedness remain central priorities, with the Kleenheat Spark program launch strengthening local installation capabilities and new photographic evidence requirements for battery installations driving compliance readiness ahead of the March 2026 deadline.

This bulletin is designed to serve both internal teams and external industry partners by offering operational context, strategic insight, and clarity around regulatory and product developments that shape our collective work.

Nicole Bilman Appointed CEO of PSW Energy

On January 27, PSW Energy announced the promotion of Nicole Bilman from General Manager to Chief Executive Officer, effective February 2, 2026. This appointment recognises Nicole’s extensive contribution to the organisation’s growth, operational refinement, and market positioning over recent years.

For internal teams and external partners, the transition represents continuity in leadership philosophy while opening new opportunities for strategic development. Nicole’s deep understanding of installation operations, customer service frameworks, and regulatory compliance positions PSW Energy to navigate the evolving renewable energy landscape with confidence. The appointment reinforces McKercher Corporation’s commitment to developing leadership from within and maintaining stable, experienced governance across its brands. Read more ›

Customer Service Platform Upgrade

Announced on January 23, McKercher Corporation is undertaking a significant upgrade to customer service infrastructure during the period 24–31 January 2026. The enhancement focuses on how customer inquiries, project management, and support functions are coordinated across the organisation.

This investment reflects the corporation’s recognition that operational excellence depends not only on technical installation quality but also on responsive, transparent customer engagement. For internal staff, the upgraded platform will streamline workflows and improve visibility across project lifecycles. For customers and partners, the changes are designed to deliver faster response times, clearer communication, and more consistent support experiences. Teams are encouraged to familiarise themselves with updated procedures as the rollout progresses. CMS rollout ›

Kleenheat Spark Installation Partnership Agreement

The Kleenheat Spark program officially launched in Perth, Western Australia, through a strategic primary partnership between Kleenheat and Perth Solar Warehouse, announced on December 27, 2025. This collaboration positions Perth Solar Warehouse as a leading local installation partner for the program, expanding access to integrated energy solutions for Western Australian households.

For McKercher Corporation, this partnership represents a significant market opportunity and reinforces the organisation’s role as a trusted delivery partner for major energy retailers. The agreement leverages Perth Solar Warehouse’s installation expertise, compliance frameworks, and local market knowledge to support Kleenheat’s customer base. Internal teams should expect increased coordination requirements as program volumes develop, with supporting documentation and training materials to be distributed through standard channels. Kleenheat Spark program ›

New Photographic Evidence Rules for Solar Batteries

The December 24 announcement detailed new photographic evidence requirements for solar battery installations commencing March 1, 2026. These requirements stem from updated compliance rules issued by the Australian Government Clean Energy Regulator, designed to strengthen verification processes and ensure installation quality across the industry.

For installation teams and technical staff, this regulatory change necessitates updated documentation procedures, including specific photographic capture protocols at defined installation stages. Compliance with these requirements will be essential for maintaining eligibility under government incentive programs and avoiding post-installation audits or disputes. McKercher Corporation is developing supporting guidance and training resources to ensure all teams are prepared well ahead of the implementation date. Learn more ›

Cybersecurity and Data Protection Commitment

On December 22, McKercher Corporation reaffirmed its unified commitment to cybersecurity and data protection across all brands and operational functions. The announcement emphasised that protecting customer information remains fundamental to business practices and long-term stakeholder trust.

This commitment reflects the corporation’s recognition of increasing cyber threats across the energy sector and the importance of robust data governance. For internal teams, the statement reinforces existing security protocols and the expectation of continued vigilance in handling customer and operational data. For customers and partners, it provides assurance that McKercher Corporation prioritises information security as a core operational responsibility rather than a peripheral concern. Details ›

Closing Message

January’s updates reflect a month of purposeful transition and forward momentum. From leadership renewal at PSW Energy to infrastructure investments, partnership expansion, and regulatory preparation, McKercher Corporation enters 2026 with clear strategic direction and operational readiness.

Thank you to all teams and partners for your continued commitment to excellence.

McKercher Corporation — Powering Progress, Sustaining Tomorrow.

New Photographic Evidence Rules for Solar Batteries Commencing March 1, 2026

Starting from March 1, 2026, solar battery installations throughout Australia will need to meet new photographic evidence requirements due to updated compliance rules from the Australian Government Clean Energy Regulator. These changes aim to enhance safety, improve installation standards, and strengthen regulatory oversight under the Small-scale Renewable Energy Scheme (SRES).

Contents

Key points

  • New requirements start 1 March 2026. Installers must submit clear, geotagged and time-stamped photos of critical solar battery labelling, or risk delayed or rejected STC claims.
  • Photo obligations are expanding. Mandatory labelling photos are in addition to existing on-site verification images and must match installation timelines and compliance certificates.
  • Preparation is critical. Installers should review labelling compliance now and update workflows ahead of detailed guidance due by 31 January 2026.

For solar installers, designers, and accredited electricians, the message is clear: photographic evidence is no longer just a means of proving that an installation took place. It has become a vital compliance tool, and failing to meet the new standards could delay or prevent claims for Small-scale Technology Certificates (STCs).

McKercher Corporation is closely monitoring these changes and encourages industry professionals to prepare in advance of the March deadline.

What is Changing

The most significant update is the requirement for mandatory photographic evidence for critical labeling and signage on every solar battery installation. Starting from March 1, 2026, installers must take clear, geotagged, and time-stamped photographs demonstrating that all required labels and safety information are correctly installed and visible.

These images must be included as part of the installation’s compliance documentation. They will be submitted alongside existing on-site verification photos and will contribute to the Clean Energy Regulator’s assessment when determining whether a Small-scale Technology Certificate (STC) claim can proceed.

If the required images are missing, unclear, incorrectly timestamped, or inconsistent with other documentation, the regulator has confirmed that STC claims may be delayed or outright rejected.

Who is Affected

The new requirements apply to everyone involved in the design, installation, and retail of solar battery systems seeking eligibility under the Small-scale Renewable Energy Scheme (SRES). This includes accredited battery installers, system designers, licensed electricians, and retailers who submit or rely on Small-scale Technology Certificate (STC) claims.

Only installers and designers accredited by Solar Accreditation Australia (SAA) are allowed to perform this work. Installations must also adhere to all relevant electrical safety laws in each state and territory, as well as Commonwealth regulations and applicable Australian standards. Additionally, only batteries and inverters listed by the Clean Energy Council (CEC) may be used. Non-compliant products risk being removed from the approved list.

Why is There Tightening Photo Evidence

According to the Clean Energy Regulator, the enhanced photo requirements are a direct response to ongoing compliance issues related to missing, incorrect, or poorly installed safety labels. These critical labels are essential for protecting homeowners, emergency services, line workers, and future technicians. However, audits have revealed that labeling standards are not consistently met.

To improve safety outcomes and reduce confusion during compliance checks, the regulator now requires photographic evidence of compliant labeling and signage. The use of geotagged and timestamped images also enhances the integrity of the evidence by confirming when and where each installation stage took place.

What Installers Must Now Photograph

Starting in March 2026, installers will be required to provide photographs of the following:

1. The exterior of meter boxes, ensuring all critical labelling is visible.
2. Switchboards and internal covers, with shutdown procedures clearly displayed.
3. The front and sides of the solar battery, showing all mandatory labels.

These images must be clear, legible, and taken at the installation site. This requirement is in addition to the current need for on-site verification photos taken throughout the installation process, including:

– Job setup
– Mid-installation
– Testing and commissioning
– Final completion

The completion photo must correspond to the test date indicated on the electrical certificate of compliance, and all photo metadata should align with the documented installation timeline. Installers are not allowed to return to the site after completion to take retrospective photos or adjust documentation to match the timelines.

Practical implications for day-to-day compliance

In practical terms, these changes mean that installers must adjust their workflows to ensure that labeling is completed accurately and photographed before leaving the site. Capturing photos should be considered an essential part of the installation process rather than a mere administrative task to be done afterward.

Installers should also note that separate on-site verification photos are required when solar PV systems and batteries are installed simultaneously. Additionally, serial numbers for batteries and new inverters must be photographed to match the entries in the REC Registry. For battery systems consisting of multiple modules, images of both the main unit and the individual modules are necessary.

If the provided evidence does not clearly demonstrate all required stages of installation, the regulator has indicated that claims for Small-scale Technology Certificates (STCs) may be denied.

Key Dates and Transitional Arrangements

The new labelling photo requirements will come into effect on 1 March 2026. However, there are important earlier dates that installers need to keep in mind. Batteries that are partially installed before 1 July 2025 must be tested on or after that date to qualify for Small-scale Technology Certificates (STCs). Any installations that are tested before 1 July 2025 will not be eligible for STCs.

Additionally, the Clean Energy Regulator has confirmed that detailed guidance regarding the new photo requirements will be released by 31 January 2026. This will provide installers with a brief window to finalise any necessary updates to their processes before the new requirements take effect.

Further Guidance

The Clean Energy Regulator and Solar Accreditation Australia remain the primary sources of official guidance on accreditation, installation limits and compliance obligations. Installers should also continue to consult Safe Work Australia’s advice on managing risks associated with rooftop solar and battery installations.

McKercher Corporation will continue to share regulatory updates and practical guidance as additional details become available. By staying informed and preparing early, installers and accredited electricians can avoid compliance delays and continue delivering safe, high-quality solar battery systems under the SRES.

Clean Energy Regulator: Solar Battery Installers and Designers

Strengthening Trust Through Security With a Unified Cybersecurity and Data Protection Commitment

At McKercher Corporation, protecting our customers’ information is fundamental to our business practices. As energy and solar services become increasingly digital, so too does the responsibility to safeguard personal data and critical systems. That’s why we are proud to announce the successful integration of a unified Cybersecurity and Personal Data Management Policy across PSW Energy and Perth Solar Warehouse—a significant milestone in our ongoing commitment to security, privacy, and transparency.

Contents

Key points

  • Unified, high-standard protection across the group: PSW Energy and Perth Solar Warehouse now operate under a single, executive-approved cybersecurity and personal data management framework, ensuring consistent, strong safeguards for customer information across all services.
  • Clear, customer-focused data security commitments: The policy delivers practical protections—such as encrypted data, strict access controls, rapid incident response, and respect for customer privacy rights—designed to keep personal and energy data secure, transparent, and responsibly managed.

Why This Matters for Customers

For customers, data security is not just an abstract idea; it’s about having confidence. It means knowing that personal details, billing information, and energy usage data are handled carefully, protected from misuse, and managed responsibly throughout their lifecycle. By bringing together PSW Energy and Perth Solar Warehouse under a single, comprehensive policy approved by executive management, McKercher Corporation has set consistent high standards across its entire portfolio.

This integration ensures that whether you are installing solar systems, managing energy services, or interacting with us online, you will benefit from the same strong protections every time.

What the Integrated Policy Delivers

Our unified policy is grounded in clear, customer-focused principles: collecting only the information we need, using it for legitimate purposes, maintaining its accuracy, and retaining it only as long as necessary. Concrete safeguards support these principles to effectively protect our customers. Some key commitments include:

  • Strong access controls so only authorised staff can access sensitive information, using role-based permissions and multi-factor authentication.

  • Encryption of data, both when it’s stored and when it’s transmitted, helps protect information even if systems are targeted.

  • Clear data classification rules that apply the highest level of protection to payment details, account numbers, and energy system data.

  • Regular reviews and audits, including security testing and annual policy reviews, are conducted to ensure that protections remain effective as technology and risks evolve.

  • Mandatory staff training, ensuring employees and contractors understand how to handle customer data securely and recognise potential threats such as phishing.

These measures are not theoretical. They are embedded into daily operations, from how smart meter data is collected and stored, to how billing systems are protected, to how access is immediately revoked when roles change.

How This Protects Customers in Real Life

Imagine reviewing your energy usage or updating payment details online. Under this policy, information is transmitted through secure, encrypted connections, stored in protected systems, and accessed only by staff who genuinely need it to perform their job duties. If a third-party service provider is involved, they must meet the exact rigorous security expectations and contractual obligations.

And if something does go wrong? McKercher Corporation’s PSW Energy and Perth Solar Warehouse have a formal incident response plan aligned with recognised international best practices. Potential incidents are detected, contained, investigated, and resolved quickly. Where personal data is affected, customers and regulators are notified promptly, with clear guidance and support.

Transparency and Customer Rights

Transparency is just as important as security. Customers have the right to know what data we hold, why we retain it, and how they can exercise their rights, such as accessing, correcting, or requesting the deletion of their personal information when appropriate. Our integrated approach guarantees that these rights are consistently upheld across both PSW Energy and Perth Solar Warehouse.

The integration of this policy is not a finish line; it’s a foundation. Cybersecurity and privacy are ongoing commitments, and McKercher Corporation’s brands will continue to review, improve, and invest in protections that keep pace with change.

For prospective and existing customers alike, this unified policy reflects who we are: a forward-thinking sustainable energy group that takes responsibility for safeguarding trust, data, and the systems that support modern energy solutions.

Full Policy [PSW Energy]: Cybersecurity and Personal Data Management Policy ›

Alignment Notice [Perth Solar Warehouse]: Cyber Security Notice ›

Bulletin, Dec 25: Solar Industry Updates & Strategic Insights for 2026

As the year draws to a close, December’s bulletin provides a consolidated overview of key announcements published across the McKercher Corporation family of brands, including PSW Energy and Perth Solar Warehouse. These updates reflect a month focused on forward planning, technical clarity, policy responsiveness, and strengthening supply-chain and manufacturer partnerships in a rapidly evolving energy landscape.

Contents

Key points

  • December 2025 focused on strategic alignment and forward planning, with clear operational objectives for 2026, an updated technical product roadmap, and refined installation timeframes reinforcing McKercher Corporation’s commitment to quality, compliance, and sustainable growth.
  • The month highlighted significant technical and regulatory developments, including clarified testing requirements for hybrid inverters, expanded government support through the Cheaper Home Batteries Program, and increased emphasis on installer performance standards from global manufacturers such as Tesla.
  • Strengthened partnerships and supply-chain decisions underscored McKercher Corporation’s industry leadership, including the adoption of Australian-made Tindo Solar panels and enhanced manufacturer support from Sigenergy during a period of heightened regulatory and market complexity.

This bulletin is designed to serve both internal teams and external industry partners by offering operational context, strategic insight, and clarity around regulatory and product developments that shape our collective work.

Tesla Installer Performance Score (TIPS)

The release of the Tesla Installer Performance Score (TIPS) explainer provided clarity on how Tesla evaluates installer performance and the implications this has for approved partners. The announcement detailed the metrics underpinning TIPS, including installation quality, commissioning accuracy, customer feedback, and compliance documentation, highlighting how these factors directly influence installer standing and access to future work.

For McKercher Corporation teams and industry collaborators, this update reinforced the importance of precision and process discipline when delivering Tesla-integrated systems. Understanding TIPS is not simply about meeting manufacturer requirements; it reflects a broader industry shift toward data-driven performance evaluation. By proactively educating staff and partners, McKercher Corporation demonstrated its commitment to transparency and preparedness, ensuring alignment with global OEM expectations while maintaining long-term relationships with installers. Further learning ›

Testing Requirements for Grid-Connected Hybrid Inverters

The announcement addressing testing requirements for grid-connected multiple-mode (hybrid) inverters provided essential guidance amid evolving regulatory expectations. It clarified testing obligations under Australian Standards, focusing on correct commissioning, grid interaction behaviour, and fail-safe operation across various operating modes. This update responded to increased scrutiny from regulators and network service providers as hybrid systems become more prevalent.

For technical teams and external installers, the guidance served as both a compliance reference and a risk-mitigation tool. Ensuring that hybrid inverters are tested correctly protects grid stability and reduces the likelihood of post-installation faults or compliance disputes. By publishing this clarification, McKercher Corporation reinforced its role as an informed industry participant committed to supporting the safe integration of advanced energy technologies. Testing requirements ›

Refined Installation Timeframes Strengthen Quality and Compliance

PSW Energy announced refined installation timeframes designed better to align scheduling with quality assurance and compliance requirements. The update acknowledged increasing technical complexity across residential and commercial systems, particularly as battery storage, hybrid inverters, and advanced monitoring become standard. Adjusted timeframes allow installation teams to complete work methodically without compromising safety or regulatory obligations.

This refinement supports installers by reducing pressure to accelerate tasks that require careful verification and documentation. For customers and partners, it reinforces PSW Energy’s commitment to long-term system performance rather than short-term throughput. The change reflects a strategic decision to prioritise consistency, audit readiness, and post-installation reliability, strengthening PSW Energy’s reputation as a quality-led operator in a competitive market. Read more ›

PSW Adopts Australian-Made Tindo Solar Panels

PSW Energy and Perth Solar Warehouse formally announced the adoption of Australian-made Tindo Solar panels as a mainstream product offering, marking a strategic investment in domestic manufacturing. The decision reflects growing recognition of supply-chain resilience, local quality control, and the broader economic benefits of supporting Australian industry within the renewable energy sector.

For customers and partners, this move signals confidence in locally manufactured products that meet stringent performance and durability standards. Internally, it aligns procurement strategies with sustainability values and long-term availability considerations. By integrating Tindo Solar panels into the product mix, McKercher Corporation strengthens its ability to offer reliable solutions while contributing to the development of Australia’s clean-energy manufacturing capability. Learn more ›

Cheaper Home Batteries Program Expanded

The expansion of the Cheaper Home Batteries Program on December 13 represented a significant policy development with direct implications for customers and installers. The announcement outlined expanded eligibility criteria, increased funding allocations, and updated administrative requirements, creating new opportunities for households to adopt energy storage solutions from May 1, 2026.

McKercher Corporation’s analysis focused on translating policy detail into practical guidance for teams and partners. Understanding eligibility thresholds, documentation requirements, and system specifications is crucial for delivering compliant installations and providing accurate customer advice. By responding promptly to the policy update, the corporation reinforced its role as a trusted intermediary between government initiatives and on-the-ground delivery, ensuring that program benefits are realised without compromising quality or compliance. Details ›

Sigenergy Supports Australian Installers

The December announcement highlighted Sigenergy’s expanded support for Australian installers during a period marked by regulatory change, product recalls, and heightened compliance scrutiny. The update offers an installer-focused rebate designed to help installers navigate complexity while maintaining installation standards in instances where project timelines have been forcibly delayed beyond their control.

For McKercher Corporation and its partners, this commitment from Sigenergy strengthens confidence in long-term collaboration. Manufacturer support plays a crucial role in ensuring system reliability and installer capability, particularly as energy storage and hybrid solutions become increasingly sophisticated. The announcement highlighted the importance of proactive manufacturer-installer relationships in maintaining industry credibility and customer trust during challenging market conditions. Learn more ›

2025/26 Technical Product Road Map

Version 5.12.1 of the 2025/26 Technical Product Road Map provided a comprehensive overview of approved technologies, phased product introductions, and planned transitions across McKercher Corporation brands. The roadmap addresses inverter platforms, battery systems, solar panels, electric vehicle charging equipment and balance-of-system components, ensuring alignment between sales, design, and installation teams.

For external partners, the roadmap provides predictability and transparency, enabling forward planning and effective inventory coordination. Internally, it acts as a governance tool, reducing ad-hoc product adoption and ensuring technical consistency across projects. Regular updates to the roadmap reflect McKercher Corporation’s commitment to controlled innovation, striking a balance between access to new technologies and proven performance and compliance assurance. Product road map ›

2026 Operational Objectives & Target Plan — Internal Briefing

The 2026 Operational Objectives & Target Plan set the strategic foundation for McKercher Corporation’s next phase of growth, aligning operational execution with long-term commercial and quality objectives. The briefing outlined clear performance targets across safety, installation quality, customer satisfaction, and supply-chain resilience, reflecting lessons learned during a period of sustained industry change. Emphasis was placed on disciplined growth, capacity planning, and maintaining consistency across brands as volumes and regulatory complexity increase.

For internal teams, the plan reinforces accountability frameworks and measurable benchmarks that will guide decision-making throughout 2026. For partners, it signals McKercher Corporation’s intent to remain a stable, predictable, and standards-driven organisation. By prioritising operational maturity over rapid expansion, the corporation positions itself to deliver dependable outcomes for customers while supporting installers, manufacturers, and distributors with clear expectations and consistent execution. Operational objectives ›

Closing Message

December’s updates reflect a year defined by strategic discipline, technical clarity, and strong partnerships. As McKercher Corporation enters 2026, the focus remains on delivering reliable, compliant, and future-ready energy solutions while supporting the people and partners who make that possible.

Thank you to all teams and collaborators for your commitment throughout the year.

McKercher Corporation — Powering Progress, Sustaining Tomorrow.

Testing Requirements for Grid-Connected Multiple Mode (Hybrid) Inverters

Hybrid inverters, classified as grid-connected multiple-mode inverters under AS/NZS 4777.1, are becoming increasingly common in residential Battery Energy Storage System (BESS) installations. Their ability to function as both a supplementary and backup supply introduces additional safety considerations that must be addressed during commissioning.

Inspections conducted across the industry since July 2025 have revealed an increase in critical defects, many of which stem from installers not following manufacturer instructions or failing to perform the necessary testing in alternative supply mode.

Contents

Proper testing is crucial to prevent unsafe neutral-earth conditions, ensure reliable operation during fault scenarios, and comply with all regulatory requirements. This article outlines the key testing obligations that electricians must adhere to when installing and commissioning hybrid inverters, as specified in AS/NZS 4777.1 and the latest compliance guidance from Building and Energy.

Understanding Hybrid Inverter Supply Modes

AS/NZS 4777.1 specifies two supply modes for multi-mode inverters:

  1. Supplementary Supply: In this mode, the inverter relies on an active connection to the grid.
  2. Alternative Supply (Backup Mode): This mode is used when the grid is isolated, allowing the inverter to supply power to selected loads using a Battery Energy Storage System (BESS).

It’s essential for installers to understand the configuration of the inverter being installed. The system may utilise one of the following:

  • combined supplementary/alternative supply port inverter, which requires an external grid disconnection device tested according to AS/NZS 4777.2, as provided and verified by the manufacturer.
  • A separate supplementary and alternative supply ports inverter, which has internal mechanisms to switch between grid and backup operation.

Testing procedures may differ based on the configuration, so installers must review the manufacturer’s documentation before energising the system.

Why Additional Testing is Critical

Recent inspections associated with the WA Residential Battery Scheme and Federal Cheaper Home Batteries Program have highlighted two recurring defects:

  1. Parallel MEN (Multiple Earthed Neutral) connections created by the inverter or introduced during installation.

  2. Lack of neutral continuity between the alternative supply neutral and the installation MEN connection.

Both issues pose significant safety risks and directly contravene AS/NZS 3000 and AS/NZS 4777.1. Thorough testing is the only reliable means of detecting and preventing these problems.

Mandatory Testing Requirements

Commissioning of hybrid inverters must follow both AS/NZS 3000 mandatory tests and the more detailed inverter-specific requirements under AS/NZS 4777.1, particularly Section 8.3.3. Electricians must ensure all test results are recorded and made available for inspection.

Testing for Parallel MEN and Neutral–Earth Connections

Testing must verify that the inverter does not inadvertently create a second MEN connection when switching between modes. AS/NZS 4777.1 Sections 8.3.3.2 and 8.3.3.3 require current injection tests to confirm there are no neutral-earth connections made by the inverter or by incorrect wiring. The measured currents must be assessed for compliance and retained as part of the installation test record.

Testing Neutral Continuity in Alternative Supply Mode

Under Clause 8.3.3.4, electricians must prove that the neutral conductor between the installation’s main neutral bar (with MEN link) and the alternative supply neutral is continuous. This is essential for correct operation of earth-fault detection and protective devices during backup operation. Voltage measurements taken during this test must be recorded and made available for inspection.

Testing in backup mode may require the installer to return when the battery has sufficient state of charge to support alternative supply operation.

Additional Testing Obligations in Backup Mode

While operating in alternative supply mode, all final and subcircuit testing must be performed in accordance with AS/NZS 3000 Section 8, including insulation resistance, polarity, earth continuity and fault-loop impedance checks. Importantly, RCD trip testing must be carried out using an appropriate RCD tester from within the installation (PSW technician have been supplied these). Push-button testing alone is not compliant.

RCDs supplying backup circuits must be upgraded to Type A or to the type specified by the inverter manufacturer. Installers are also required to re-arrange, group and label alternative supply circuits or install a dedicated alternative supply switchboard to ensure they are clearly identifiable.

Importance of Manufacturer-Specific Instructions

Australian-specific wiring diagrams and installation notes provided by manufacturers must be followed without deviation. Hybrid inverters differ substantially across brands, and incorrect interpretation of terminals, switching arrangements or neutral bonding requirements is a leading cause of unsafe installations.

If uncertainty arises, installers should consult the manufacturer directly or refer to the relevant Australian Standards before completing the installation. To assist PSW technicians, manufacturer installation guides will be provided on the McKercher Corporation website, located here, and promoted in the release section of each monthly bulletin.

Documentation and Inspection Readiness

To support compliance inspections, installers are encouraged to attach:

  • Full test results for all AS/NZS 3000 and AS/NZS 4777.1 tests performed
  • Manufacturer installation and operating instructions
  • Any configuration sheets or commissioning logs

Providing complete documentation improves inspection efficiency and eliminates ambiguity around how the system was configured or tested. A PSW technician should be equipped with all necessary resources for adequate testing before commencing any project.

Working Safely on Energised Equipment

Certain testing activities require work on or near live electrical components. Installers must adhere to the Code of Practice for Individuals Working on or Near Energized Electrical Installations, as published by Building and Energy. Before conducting any energized testing, it is essential to establish safe work systems, carry out risk assessments, and ensure that appropriate personal protective equipment (PPE) is used.

Hybrid inverters provide significant flexibility for solar and battery installations; however, this flexibility also comes with increased technical responsibilities. Achieving compliance involves more than simply ticking off a checklist; it requires a thorough understanding of how the inverter behaves in each supply mode and verifying through testing that its performance is safe and meets standards. 

To ensure that Battery Energy Storage System (BESS) installations are safe, reliable, and fully compliant with AS/NZS 4777.1 and AS/NZS 3000, electricians must conduct all necessary tests and inspections. This is particularly critical for tests related to neutral continuity, the integrity of the Multiple Earthed Neutral (MEN), and the functionality in backup mode.

For full reference, download the original compliance guidance here: Testing Requirements for Grid-Connected Multiple Mode Inverters – Building & Energy

PSW Energy Refines Installation Timeframes Strengthening Quality and Compliance

PSW Energy (including Perth Solar Warehouse), a prominent solar and battery provider in Western Australia and a subsidiary of McKercher Corporation, has announced an updated scheduling framework for selected installation projects. This enhancement will reinforce the company’s enduring commitment to quality, safety, and compliance with Australian Standards in all system installations.

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The revised time allocations will impact less than 5% of scheduled solar and battery installations, ensuring minimal disruption while allowing for improved planning and precision on more complex projects.

Proactive Quality Assurance

The adjustments are the result of an intentional, forward-looking quality improvement initiative, rather than operational constraints. Installations involving gateway/blackout protection features, switchboard upgrades, complex roof structures, or intricate building environments will now receive extended time allocations to ensure optimal long-term performance and compliance.

“Solar and battery technologies are becoming more advanced, and it’s essential that the supporting installation processes evolve with them,” said Derek McKercher, Director, McKercher Corporation. “These refined timeframes allow PSW Energy technicians to deliver consistent, high-quality outcomes without compromise—exactly what our customers expect from our brands.”

Aligned With ISO-Driven Quality Practices

The refinements also support McKercher Corporation’s broader commitment to ISO-aligned operational frameworks. By adjusting schedules to better match the technical nature of certain installations, PSW Energy continues to uphold rigorous documented procedures, continuous quality improvement practices, and the highest safety standards.

“These updates reinforce our dedication to delivering installations that meet every requirement of Australian Standards while supporting our ongoing pursuit of ISO-aligned excellence,” said Nicole Bilman, General Manager, PSW Energy. “It’s a proactive step, taken to ensure long-term reliability and safety for every customer.”

Customer Impact and Communication

Customers affected by the revised timeframes will be contacted directly with updated scheduling details. No action is required from customers unless notified. All other installations will proceed as initially planned.

The company emphasises that the refinements safeguard installation quality while ensuring that customer expectations remain clear and well-managed.

Learn more: Update on installation timeframe refinements [PSW Energy] ›

About PSW Energy

PSW Energy is a trusted Western Australian provider of premium solar and battery storage solutions, delivering high-performance renewable energy systems for homes and businesses. The McKercher Corporation business is recognised for its history of technical expertise, industry-leading brands, and a strong commitment to installation excellence.

About McKercher Corporation

McKercher Corporation is the parent organisation behind a portfolio of high-performance energy, technology, and service brands, including PSW Energy and Perth Solar Warehouse. The company is dedicated to driving innovation, operational excellence, and sustainable growth across all subsidiaries.

Understanding the Tesla Installer Performance Score (TIPS)

Tesla Installer Performance Score Logo on a black background

Tesla has launched the Tesla Installer Performance Score (TIPS), a new, data-driven framework aimed at assessing and acknowledging the technical excellence and customer satisfaction of its installation partners. For certified technicians and installers, this system offers a clear perspective on how installation quality and customer experience can be translated into measurable performance.

TIPS is more than just a score; it serves as a collaborative framework for achieving mutual success. It helps Tesla and its partners align around consistent standards of quality, reliability, and customer satisfaction.

Contents

The Tesla Installer Performance Score (TIPS) is a comprehensive measurement system that combines technical metrics and customer feedback to produce a single, objective performance score. It represents an evolution of Tesla’s earlier Pro Score program, integrating lessons learned to offer a more balanced and transparent approach.

Purpose of TIPS:

  • Establish a fair, consistent, and data-driven method for evaluating installer performance.
  • Strengthen partnerships through transparency and recognition.
  • Provide a predictable pathway for growth, with benefits linked directly to performance.

How the Score Works

Step 1: The Installer Score

Each installer’s score is calculated based on four key metrics, weighted to reflect their importance in overall quality:

Metric
Weight
Description
Installer Certification
22.5%
Completion and passing of the Powerwall 3 Final Exam in Tesla Workforce Management.
Device Commissioning Tests
26.25%
Successful completion of Backup, Internet, and Metering tests within 48 hours of commissioning.
Device Diagnostics
26.25%
Absence of post-installation errors such as negative load, solar disconnection, or wiring issues.
Customer Activation
25%
Timely registration of the system to the customer’s account and app login within 7 days.

Each technician’s weighted average contributes to the overall company score, with more installs giving proportionally greater impact.

Step 2: The Company Score

The Company Score is a weighted combination of:

  • Installer Average (80%) — reflecting overall technical excellence.

  • Customer Satisfaction (20%) — based on post-installation survey results converted to a 100-point scale.

This approach ensures a balance between technical performance and customer experience — rewarding both precision and professionalism

The Five Core Metrics Explained

  • Installer Certification:
    Confirms that each installer has passed the required Powerwall 3 competency exam. This ensures technical readiness and contributes to a perfect score on this metric.

  • Device Commissioning Tests:
    Measures success in system setup and commissioning. Passing the Backup, Internet, and Metering tests within 48 hours ensures reliability from day one.

  • Device Diagnostics:
    Tracks early system performance to identify issues like negative loads or Powerwall disconnections during the first operational week.

  • Customer Activation:
    Evaluates how smoothly the system is transferred to the homeowner. Key indicators include timely registration and the customer’s first app login.

  • Customer Satisfaction:
    Based on customer survey feedback collected 30 days post-commissioning. Reflects the overall experience across sales, installation, and aftercare

Implementation Timeline & ACCESS

  • October 2025: Initial communications and training resources.

  • Late 2025: Access to score previews and installer dashboards.

  • Q1 2026: Official launch of the TIPS program across all accredited partners

The early announcement gives teams more than 90 days to familiarise themselves with the new metrics and prepare before the system goes live. Initially, installers will receive performance insights through their Tesla Account Managers, who will share dashboards and score breakdowns during regular reviews.

Later in the rollout:

Partner Portal: A new dashboard will offer real-time access to company-wide and installer-level scores.

Tesla One App: Individual installers will be able to view their own performance metrics directly in the app

Support and Resources

Training and Certification: Available through Tesla Workforce Management.

Technical Documentation: Found in the Partner Portal and Energy Library.

Tesla Installer Performance Score: Quick Reference Guide (official)

Dedicated Support: Email questions to [email protected], copying your Account Manager on all inquiries

The Tesla Installer Performance Score (TIPS) is an important development aimed at aligning installation standards with Tesla’s commitment to quality and customer satisfaction. While there is no immediate action required, understanding how this system functions will help accredited technicians and installers prepare for its official launch in early 2026.

TIPS serves as a partnership tool—it measures excellence, recognises achievements, and ensures that every installation meets the high quality that Tesla customers expect.

Prioritising Safety, Precision, and Preparedness

At McKercher Corporation, our commitment to operational excellence is rooted in a shared culture of safety, precision, and preparedness, both in the field and in the office. This month’s bulletin revisits three critical updates published on the company website during November. These updates underscore our collective responsibility to work safely, stay informed about product changes, and respond effectively in the event of an emergency.

Contents

Key points

  • Mandatory PPE for Hammer Drills: All staff are required to adhere to the updated Hammer Drill Operation Procedures, which mandate the use of eye, ear, and hand protection. This ensures compliance with the Work Health and Safety Regulation 2022 and helps prevent onsite injuries.
  • Sigenergy SigenStor EC Update: A product change notice affects the SigenStor EC AC Output Interface, requiring design and installation teams to verify specifications before deployment.
  • Falls Rescue Plan Revision: The PSW-PLN-HSEQ-0X Falls Emergency Rescue Plan has been updated to include new rescue procedures and scheduled annual drills for all field teams.

Note: These bulletins are primarily intended for McKercher Corporation staff. Non-staff members may familiarise themselves with this open-source compilation of accessible business communication.

Updated Hammer Drill Operation Procedures

Working safely with power tools starts with proper preparation. The recently updated Hammer Drill Operation Procedures outline mandatory personal protective equipment (PPE) and revised safe work practices to ensure that every operator is protected from preventable injuries. These updates include reinforced requirements for eye, ear, and hand protection, along with clear instructions for pre-start inspections, secure footing, and appropriate material handling.

All staff, especially those in field operations, must familiarise themselves with the new procedures before using powered drilling equipment again. Supervisors are responsible for ensuring compliance during site briefings and toolbox meetings. These updates were posted on the company website earlier this month as part of our ongoing commitment to meet the Work Health and Safety Regulation 2022 requirements for risk elimination and control.

Remember: safe drilling begins well before the trigger is pulled. Taking the extra moment to check your PPE, inspect the tool, and confirm worksite stability helps protect you, your teammates, and our company’s safety record.

Product Update: Sigenergy SigenStor EC AC Output Interface

Sigenergy has issued a product change notice for the SigenStor EC AC Output Interface, applicable to both current and future installations. This update modifies the specifications for components related to the AC output interface, aiming to enhance system reliability and ensure compliance with Australian standards.

For technicians and project planners, it is important to verify product compatibility and updated connection requirements before proceeding with installations. All sales and design staff should refer to the revised datasheet and installation guidance available on the McKercher Corporation website and the PSW Energy resource portal.

Since the release of the product change notice, the Sigenergy Sigen Energy Controllers (8, 10, and 12 kW), installed by PSW, are now under a voluntary product recall. This recall, initiated by the manufacturer and monitored by the ACCC Product Safety department, focuses on enhancing safety and performance. This update underscores our commitment to staying informed about our partners’ product developments and maintaining our industry reputation for accuracy, compliance, and customer trust.

Revised Emergency Protocol: Falls Rescue Plan

Our ability to respond effectively to emergencies can save lives. The updated Falls Emergency Rescue Plan (PSW-PLN-HSEQ-0X) enhances our existing Emergency Management Plan (PSW-PLN-HSEQ-01) by providing clearer response procedures and role allocations for fall incidents. This new plan includes a detailed sequence of immediate rescue actions, coordination for medical response, and established communication pathways between field teams and emergency services.

A significant addition to the plan is the formal scheduling of annual fall-rescue drills, ensuring that each field team remains proficient in rescue procedures. Supervisors are now responsible for confirming that fall-arrest systems are being used, inspected, and properly documented according to schedule. Updated documentation and emergency contact listings have been integrated into the HSEQ system and should be reviewed by all staff involved in elevated work.

This update not only addresses audit recommendations but also demonstrates our ongoing commitment to ensuring the safety of everyone working at heights on McKercher Corporation projects. Update: Falls Emergency Rescue Plan (PSW-PLN-HSEQ-0X)

Closing Message

As we wrap up November, let’s remain committed to the standards that ensure our teams stay safe and our operations run smoothly. Whether it’s ensuring compliance with personal protective equipment (PPE), integrating product updates, or practicing rescue readiness, each of us plays a crucial role in fostering a culture of care and professionalism.

If you have any questions regarding these updates, please reach out to your department lead or the HSEQ team.

McKercher Corporation — Powering Progress, Sustaining Tomorrow.