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

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 ›

2025/26 Technical product road map for McKercher Corporation brands V.5.12.1

This roadmap provides a technical summary of PSW Energy and Perth Solar Warehouse’s current product platforms and planned areas of optimisation. All items listed are available solutions; roadmap notes indicate where we are focusing on integration, sizing and ecosystem improvements over time. Specifications and availability are subject to change.

Contents

A unique approach, we’re delivering open source internal communication to assist organisational transparency.

1. PV Module Platform Roadmap

1.1 Current Panel Families

Make/model
Power class
Position
Importer
Availability
RISEN N-Type TOPCon
475W
Value-performance Tier-1 panel
OSW
Current
Jinko Neo Black
475W
High-volume Tier-1 workhorse
Go
March 2026
Aiko Neostar 3S
475W
Premium, high-efficiency module
SG
March 2026
Tindo Walara G4P-BL
475W
Premium, Australian-made
OSW
January 2026
Canadian TOPHiKu6 Black
460W
High-volume Tier-1 workhorse
Canadian (AU)
Current

2. Battery & Hybrid Inverter Platform Roadmap

2.1 Tesla Powerwall 3 Platform

Make/model
Power class
Position
Importer
Availability
Tesla
Powerwall 3
13.5 kWh, up to 10 kW, single-phase
Master battery unit 1-ph
Tesla (AU), Sol
Current
Tesla
Powerwall 3 Expansion
13.5 kWh
Expansion battery unit
Tesla (AU), Sol
Current
Tesla
Powerwall 3
13.5 kWh, up to 10 kW, three-phase
Master battery unit 3-ph
Tesla (AU), Sol
2026
Tesla Gateway 2
Single and three-phase
Communication and blackout protection
Tesla (AU), Sol
Current

2.2 Sigenergy – SigenStor Platform

Make/model
Power class
Position
Importer
Availability
Sigenstor

7.8 → 46.8 kWh, up to 10 kW, single-phase
All-in-one system 1-ph
ES, Sol, TZ, LH
Current
Sigenstor

7.8 → 46.8 kWh, up to 30 kW, three-phase
All-in-one system 3-ph
ES, Sol, TZ, LH
Current

2.3 Goodwe Platform

Make/model
Power class
Position
Importer
Availability
ESA

8 → 48 kWh, 9.99 kW, single-phase
All-in-one system 1-ph
OSW
Current
ESA

8 → 48 kWh, 9.99 kW, three-phase
All-in-one system 3-ph
OSW
Q2 2026
Lynx
Home F G2
9.6 → 25.6 kWh, DC-coupled stack
VPP-ready modular DC battery
OSW
Current
Goodwe
N-EH
5 kW, single-phase
Goodwe ecosystem: PV + battery + VPP readiness
OSW
Out of stock
Goodwe
EHB
8 | 10 kW, single-phase
Goodwe ecosystem: PV + battery + VPP readiness
OSW
Current
Goodwe
ET
5 kW, three-phase
Goodwe ecosystem: PV + battery + VPP readiness
OSW
Current
Goodwe
ET-G2
8 | 9.99 | 15 kW, three-phase
Goodwe ecosystem: PV + battery + VPP readiness
OSW
Current

2.4 Fox ESS – EQ Battery + Hybrid Platform

Make/model
Power class
Position
Importer
Availability
Fox EQ battery

13.9 → 41.9 kWh, DC-coupled stack
VPP-ready modular DC battery
OSW
Current
Fox hybrid 1ph

5 | 10 kW, single-phase
Fox ecosystem: PV + battery + VPP readiness.
OSW
Current
Fox hybrid 3ph

5 | 10 | 15 kW, three-phase
Fox ecosystem: PV + battery + VPP readiness.
OSW
Current

2.5 Fronius Reserva [or BYD] Platform

Make/model
Power class
Position
Importer
Availability
Reserva
9.4 → 31.4 kWh, DC-coupled stack
Premium DC-coupled solution with GEN24+, ideal for long-term Fronius users.
BayWA, SG, Sol
Current
Primo GEN24+
5 | 10 kW, single-phase
Anchor product for premium European PV+storage builds.
BayWA, SG, Sol
Current
Symo GEN24+
5 | 10 | 15 kW, three-phase
Anchor product for premium European PV+storage builds.
BayWA, SG, Sol
Current
BYD HVM
11 → 22.1 kWh, DC-coupled stack
Premium DC-coupled solution with GEN24+, ideal for long-term Fronius users.
BayWA, SG, Sol
Delay

2.6 iStore Platform

Make/model
Power class
Position
Importer
Availability
iStore
Battery
5 → 30 kWh, DC-coupled stack
DC-coupled solution with iStore & selected Huawei inverters.
SG
Current
iStore Hybrid
5 | 10 kW, single-phase
iStore Univers ecosystem: PV + battery + VPP readiness.
SG
Current
iStore Hybrid
5 | 10 | 15 kW, three-phase
iStore Univers ecosystem: PV + battery + VPP readiness.
SG
Current

2.6 Sungrow Platform

Make/model
Power class
Position
Importer
Availability
SBR HV
9.6 → 25.6 kWh, DC-coupled stack
DC-coupled solution with Sungrow SH RS & RT inverters.
Ray
Current
SBH HV
DC-coupled solution with Sungrow SH RS & RT inverters.
20 → 40 kWh, DC-coupled stack
Ray
Check
Sungrow SH RS
5 | 8 | 10 kW, single-phase
Sungrow ecosystem: PV + battery + VPP readiness.
Ray
Current
Sungrow SH RT
5 | 10 | 15 kW, three-phase
Sungrow ecosystem: PV + battery + VPP readiness.
Ray
Current

2.7 Growatt Platform

Make/model
Power class
Position
Importer
Availability
APX
5 → 30 kWh, DC-coupled stack
DC-coupled solution with Growatt XH inverters.
Go
Current

3. EV Charging Platform Roadmap

3.1 AC EV Chargers

Make/model
Power class
Position
Importer
Availability
Tesla Wall connector
7 / 11 kW
Ideal for Tesla vehicles and Powerwall owners.
Tesla (AU), Sol
Current
Sigenergy AC EV charger
7 / 11 / 22 kW
Designed to complement SigenStor systems.
ES, Sol, TZ, LH
Current
Goodwe HCA
7 / 11 / 22 kW
Suited to Goodwe ESA / hybrid inverter ecosystems.
OSW, Sol
Limited
Fox ESS L-series
7 / 11 kW
Fox PV + battery ecosystem alignment.
OSW
Current
Fronius Wattpilot 22J
7 / 11 / 22 kW
Strong fit with Fronius PV & GEN24 systems.
BayWA, SG, Sol
Current
Fronius Wattpilot Flex
7 / 11 / 22 kW
Second generation Fronius Wattpilot
BayWA, SG, Sol
2026

3.2 DC EV Chargers (Sigenergy)

Make/model
Power class
Position
Importer
Availability
Sigenergy
12.5 / 25 kW
High-power DC charging for advanced residential / light commercial use, aligned with SigenStor.
ES, Sol, TZ, LH
25 kW – limited. 12.5 upgradeable to 25 kW after installation

4. Integration & Standards Roadmap (Cross-Platform)

Across all major product lines above, roadmap work will focus on:

Standardised package templates: Pre-defined panel, inverter, battery, and EV charger combinations for typical load profiles (small, standard, high consumption, and multiple EVs).

Blackout/backup options clarity: Precise mapping of which products support full-home versus partial-circuit backup, along with the required gateways/switchgear.

VPP & tariff optimisation readiness: Prioritise platforms with strong VPP capability (e.g., Fox ESS, Tesla, others, where applicable).

Technical documentation alignment: Consistent datasheet links, one-click downloads, and uniform formatting across all panel and storage families.

PSW Energy & Perth Solar Warehouse Adopt Australian-Made Tindo Solar Panels

McKercher Corporation is pleased to announce that PSW Energy and Perth Solar Warehouse have officially adopted Tindo Solar panels, which are the only photovoltaic modules manufactured in Australia. This strategic decision represents a significant milestone in advancing Australia’s renewable energy landscape. It reinforces both companies’ commitment to supporting local manufacturing, strengthening domestic supply chains, and providing high-quality solar technology to Australian consumers.

Contents

As global supply chains face increasing uncertainty, the integration of Tindo Solar panels represents a conscious shift toward greater energy independence and local capability. For PSW Energy and Perth Solar Warehouse, the move underscores a shared commitment: empower customers with products built for Australian conditions while contributing to the long-term resilience of the national renewable energy industry.

Adopting Tindo Solar is more than a product decision—it’s a strategic commitment to Australian innovation,” said Derek McKercher for PSW Energy. “Our customers value quality and transparency. Offering Australia-made panels enhances both, while supporting a strong and sustainable local manufacturing sector.

A Vote of Confidence in Local Manufacturing Excellence

Tindo Solar holds a unique position in the Australian market as the nation’s only manufacturer of solar panels, producing modules at its state-of-the-art facility in Adelaide. With a reputation for stringent quality control, premium component selection, and engineering that meets the demands of Australia’s harsh climate, the company has established itself as a leader in domestic solar technology.

It was an absolute pleasure showing you around Tindo [PSW Energy and Perth Solar Warehouse]. We look forward to a strong mutually beneficial partnership,” said Director Glenn Morelli from Tindo Solar on LinkedIn

Enhanced Value

PSW Energy and Perth Solar Warehouse customers and partners, this development signals increased accessibility to locally produced panels with shorter lead times, more transparent supply chains, and consistent quality assurance. For residential and commercial customers, the alignment between these organisations offers tangible benefits:

Our customers increasingly ask for Australian-made options,” noted Nicole Bilman, PSW Energy, General Manager. “By adding Tindo Solar to our range, we’re delivering a solution that aligns with customer expectations while supporting long-term industry sustainability.

Strengthening Australia’s Renewable Energy Future

The integration of Tindo Solar panels into PSW Energy and Perth Solar Warehouse’s offerings highlights a shared vision: a stronger, more self-reliant Australian solar industry built on quality, innovation, and local capability. This partnership not only broadens consumer choice but also contributes to the long-term stability of Australia’s renewable energy supply chain.

As demand for reliable and localised energy solutions continues to rise, this collaboration sets an important precedent for industry alignment and domestic manufacturing support.

Guide: The homeowner’s guide to Australia’s Tindo Solar panels ›

About the Companies

PSW Energy

A leading Western Australian energy provider specialising in solar and advanced energy technologies. PSW Energy delivers premium products supported by industry expertise, customer-focused solutions, and a commitment to sustainable energy adoption. Learn more ›

Perth Solar Warehouse

One of Western Australia’s most recognised solar installers, offering high-quality solar, battery, and energy-efficiency solutions to residential and commercial clients. The company is known for transparency, trusted service, and technical excellence. Learn more ›

Tindo Solar

Australia’s only manufacturer of solar panels, Tindo Solar designs and engineers high-performance photovoltaic modules at its Adelaide facility. The company advocates for domestic manufacturing, quality assurance, and innovation within the Australian renewable energy sector. Learn more ›

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.

Contents

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.

Update: Falls Emergency Rescue Plan (PSW-PLN-HSEQ-0X)

Department: HSEQ — Health, Safety, Environment & Quality
Document: FALLS EMERGENCY RESCUE PLAN — PSW-PLN-HSEQ-0X
Document (site copy): Falls_emergency_rescue_plan.docx (internal Drive)

This is an official notification to all technical staff regarding the Falls Emergency Rescue Plan (PSW-PLN-HSEQ-0X). The plan has been issued and updated, and it is now the company standard for responding to falls from heights.

Contents

What this update is about

This is an official notification to all technical staff that the Falls Emergency Rescue Plan PSW-PLN-HSEQ-0X has been issued/updated and is now the company standard for responding to falls from height. The plan establishes the required procedures, responsibilities and equipment for safe rescue of personnel suspended in fall arrest systems, and must be used at every site where work at heights (>2 m) is undertaken.

Why this matters

The Plan sets mandatory controls to protect both the injured worker and rescue personnel — including pre-planning, site-specific rescue plans, competence requirements, and emergency response steps. Following the Plan reduces the risk of suspension trauma and other fall-related injuries, ensuring rescues are performed safely and in compliance with our HSEQ obligations.

Summary — purpose, scope & key procedures

Purpose & scope: Defines rescue requirements for falls of two (2) metres and above and requires inclusion of the Plan in risk assessments and SWMS for any applicable work.

Key procedures:

  • Rescue options include self-rescue, assisted self-rescue, mechanically aided rescue, aerial work platform/crane-assisted rescue, and team rescue; all must be pre-planned for the site conditions. 
  • Responsibilities for organisation, rescue personnel and supervisors, plus inspection, assembly and maintenance of rescue equipment. 

 

How it protects personnel: Pre-planning, competent trained rescuers, prescribed equipment, and rehearsal of emergency procedures minimise time suspended, control suspension-trauma risk, and protect rescue teams.

Key changes (please note)

Mandatory actions for technical staff

Attend mandatory training: All technical staff and nominated rescue personnel must attend the company rescue training on 8 December 2025 (attendance compulsory).

Update personal rescue kits: Review and update personal rescue kits to comply with the Plan’s revised equipment list prior to 8 December.

Review the Plan: Read PSW-PLN-HSEQ-0X in full and ensure site SWMS and rescue plans are updated before commencing any work at height.

Questions / Confirmation

For questions or to confirm training attendance and kit compliance, contact: HSEQ Department or Mark Rutherford — ma**@***********om.au

Issued by:
McKercher Corporation – Safety and Compliance Division

Updated Hammer Drill Operation Procedures – Mandatory PPE & Safe Work Practices

Effective Immediately – Compliance required across all McKercher Corporation sites.

McKercher Corporation has updated its Hammer Drill Operation Procedures to strengthen worker safety, eliminate preventable injuries, and ensure full compliance with AS/NZS safety standards. All team members operating hammer drills must follow these updated procedures and mandatory PPE requirements without exception.

Contents

Why These Updates Matter

Using a hammer drill exposes workers to various hazards, including high-speed debris, excessive noise, and airborne dust, all of which can lead to serious injuries and long-term health problems. These updates aim to:

Your safety, and that of your team, depends on strict adherence to these standards.

Mandatory PPE Requirements

All workers using a hammer drill must wear the following Personal Protective Equipment (PPE). Each item is required for compliance with site and regulatory safety standards.

PPE Item
Purpose / Hazard Mitigated
Safety Glasses (AS/NZS 1337.1:2010)
Protects against high-velocity debris. Sunglasses are not an acceptable substitute.
Hearing Protection (Earplugs or Earmuffs)
Prevents hearing damage from prolonged exposure to high noise levels.
Dust Mask or Respirator
Protects against dust inhalation and respiratory irritation, especially in enclosed or dusty environments.
Gloves
Reduces vibration-related strain and protects hands from abrasion.
High-Visibility Clothing
Ensures visibility to surrounding workers and machinery operators.
Steel-Toe Boots
Protects feet from dropped tools, falling debris, and impact hazards.
Long-Sleeved Shirts and Trousers
Shields skin from dust, debris, and minor abrasions.

Why Sunglasses Are Not Sufficient

  • They do not provide impact resistance against flying debris.
  • They lack side shields, leaving eyes exposed.
  • They do not meet AS/NZS 1337.1:2010 standards for industrial eye protection.

Only certified safety glasses are permitted for hammer drill operations.

Safe Work Practices

Adhering to PPE requirements is only part of safe operation. Every worker must also follow these essential safe work practices:

  • Pre-Work Inspections

    • Inspect all tools and PPE for damage before use.

    • Verify that cords, plugs, and drill bits are intact and secure.

  • Work Area Safety

    • Maintain a clean, organized workspace free of tripping hazards.

    • Keep bystanders clear of the drilling zone.

  • Proper Tool Handling

    • Use the correct drill bit for the material.

    • Do not force the tool; let the hammer action perform the work.

    • Maintain a firm, balanced stance during operation.

  • Breaks & Ergonomics

    • Take regular breaks to minimize fatigue and vibration exposure.

    • Adjust grip and posture to reduce strain on wrists, shoulders, and back.

  • Dust and Ventilation Control

    • Use dust extraction systems or wet drilling where possible.

    • Ensure adequate ventilation when operating indoors.

Compliance Expectations

Effective immediately, all hammer drill operations must comply with the updated personal protective equipment (PPE) and procedural standards. Supervisors are responsible for ensuring compliance. Failure to follow these safety requirements may result in disciplinary action and could lead to removal from site duties.

Safety is Everyone’s Responsibility

Every preventable injury impacts our team’s safety record and the well-being of our people. These updates go beyond compliance; they focus on ensuring everyone returns home safely at the end of each shift.

Issued by:
McKercher Corporation – Safety and Compliance Division
Effective Date: November 2025

Sigenergy SigenStor EC, AC Output Interface Product Change Notice

October 2025, Sigenergy Technology Co., Ltd. has announced an update to the AC Output Interface for the SigenStor EC and Sigen Hybrid series. This change is designed to improve installation reliability and wiring safety, aligning with best practices for professional solar system deployment.

Contents

Key Summary

To enhance long-term reliability and prevent overheating caused by potentially improper wiring connection methods formed between the installer and device, Sigenergy has upgraded the AC cable terminal across multiple SigenStor EC and Sigen Hybrid models. The product codes remain unchanged, ensuring continuity in ordering and inventory management.

Download

Models Affected

Single Phase (SP) – 8–12 kW

  • SigenStor EC 8.0 SP / 10.0 SP / 12.0 SP

  • Sigen Hybrid 8.0 SP / 10.0 SP / 12.0 SP

Three Phase (TP) – 17–30 kW

  • SigenStor EC 17.0 TP / 20.0 TP / 25.0 TP / 30.0 TP

  • Sigen Hybrid 17.0 TP / 20.0 TP / 25.0 TP / 30.0 TP

Implementation Dates:

  • AU Versions: October 2025

  • Global Versions: November 2025

Note: Refer to actual delivery timelines for confirmation.

Nature of the Change

Previous Configuration: Standard AC cable terminal that allowed flexibility in cable connection. Updated Configuration: Mandatory use of OT terminals for AC cable connections.

Reason for Change:

  • Addresses field cases involving undersized cables (e.g. 6mm²) and non-standard wiring methods.
  • Prevents potential connector overheating from improper terminations.
  • Improves overall connection security and installation consistency.

Technical Implications

  • No impact on product safety, ingress protection, maintenance, or reliability.

  • No change to external interfaces, dimensions, or product appearance beyond labeling updates.

  • New Identification: Packaging labels will include markings indicating the OT terminal version.

  • Product codes remain the same — no revision required in ordering systems.

Side‑by‑side diagrams comparing the previous and updated AC terminals for 8‑12 kW single‑phase Sigenergy inverters, highlighting the new OT terminal design.

Image: Product change location. Similar AC terminal location across all models identified.

Compatibility & Installation Guidance

For existing installations:

  • No retrofit or modification is required for units installed before the changeover.

For new installations (post-October/November 2025):

  • Installers must use OT terminals for all AC wiring connections.

  • Ensure proper cable sizing and crimping to maintain optimal current capacity and thermal performance.

  • Review the updated Quick Guide provided in the product package or contact McKercher Corporation for documentation support.

A cardboard box labeled “Sigenergy Inverter” with a close‑up showing the energy controller label and product details.

Image: Identification of change: Green Dot.

Actions for Installers

✅ Verify installation date to determine applicable terminal version.
✅ Use OT terminals for all post-change units.
✅ Update internal installation procedures to reflect the mandatory terminal usage.
✅ Reference the new product labelling during warehouse checks and job preparation.

Effective Dates

Region
Product Versions
Implementation
Australia
EC / Hybrid SP & TP Models
October 2025
Global
EC / Hybrid SP & TP Models
November 2025

Support & Contact

For questions or technical clarification, please contact: sa***@*******gy.com or se*****@*******gy.com

Alternatively, staff can contact PSW Energy’s technical team, who can assist with documentation or compatibility inquiries.

Commitment to Installers

At McKercher Corporation, we recognise that clear communication around product changes is essential to your success in the field. This update reflects Sigenergy’s and McKercher Corporation’s shared commitment to installation quality, safety, and transparency—ensuring every system you install performs reliably for years to come.

Strengthening Compliance, Partnerships, and Industry Standing

Compliance and excellence are closely linked. As McKercher Corporation continues to evolve within the renewable energy sector, we remain committed to ensuring that every project, partnership, and accreditation meets our shared standards for quality, safety, and performance. This month’s bulletin highlights three key updates that are shaping our operations and partnerships.

Contents

Key points

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.

Regulatory Changes: PV Arrays & BESS Compliance

Regulatory frameworks continue to evolve as battery technology becomes increasingly integrated into existing solar systems. One critical update affects how existing PV arrays are classified under compliance rules when paired with Battery Energy Storage Systems (BESS).

Repairs vs Alterations: The Key Distinction. When adding or modifying a BESS to an existing PV system, it’s vital to understand whether the work qualifies as a repair or an alteration:

Repairs: Activities that restore a system to its original operating condition—such as replacing identical components or fixing faults—do not require new compliance certification under AS/NZS standards.

Alterations: Any modification that changes the configuration, capacity, or function of an existing system—such as upgrading inverters, adding storage, or reconfiguring circuits—requires a full compliance reassessment to ensure the installation meets current standards.

Why It Matters: Understanding this distinction protects both the company and individual technicians from compliance breaches. This ensures:

  • Continued alignment with the Clean Energy Regulator and AS/NZS standards.
  • Assurance that McKercher Corporation installations remain legally compliant and safe.
  • Confidence that clients receive systems built to the latest and highest quality benchmarks.

Understanding regulatory definitions is crucial for our operational integrity as the renewable energy landscape evolves. Deeper understanding: Regulatory Update: Compliance Requirements for Battery Energy Storage System (BESS) Installations with Existing PV Arrays

Subsidiary Strength: PSW Energy’s Q3 Results

PSW Energy continues to achieve remarkable results. The Q3 performance report highlights a significant increase across key metrics—sales growth, installation efficiency, and customer satisfaction—demonstrating the strength of McKercher Corporation’s renewable energy network.

Highlights from Q3, 2025

Improved growth in residential solar and battery installations compared to the previous quarter.

Record customer satisfaction levels of purchasing customers, reinforcing trust in PSW Energy as a subsidiary of McKercher Corporation.

Improved package/project streamlining through the adoption of agentic handling systems.

These achievements highlight the importance of aligned partnerships and a shared commitment to advancing renewable solutions that are effective, compliant, and sustainable. PSW Energy’s ongoing success reflects McKercher Corporation’s broader strategic goal of leading with integrity, reliability, and innovation in Australia’s renewable energy market. For further insights, see: PSW Energy Strengthens McKercher Corporation’s Renewable Portfolio with Q3 Results

Achievement Unlocked: Sigenergy Silver Certification

Congratulations to the PSW Energy and Perth Solar Warehouse team for achieving Sigenergy Silver Certified Installer status. This certification recognises exceptional proficiency in deploying Sigenergy’s advanced energy storage technologies and maintaining manufacturer-aligned best practices. What this means:

PSW Energy, Perth Solar Warehouse is officially recognised by Sigenergy as a trusted and technically competent partner.

This status enables the business to provide improved product support, system optimisation, and increased client confidence.

It reflects McKercher Corporation’s broader commitment to professional excellence and continuous improvement in renewable technology deployment.

This certification is not only an important operational achievement, but also a reflection of our commitment to quality, compliance, and innovation. Every team member should feel proud to be part of a company that continues to set benchmarks in the Australian renewable energy industry. Further learning: Perth Solar Warehouse attains Sigenergy silver certified installer status

Closing Message

Our progress is a collective effort. Each compliance update recognised, every partnership strengthened, and each certification obtained signifies a shared step toward a cleaner, safer, and more resilient energy future.

If you have any questions or need further clarification regarding these updates, please contact your department lead or the compliance team.

McKercher Corporation — Powering Progress, Sustaining Tomorrow.

PSW Energy Strengthens McKercher Corporation’s Renewable Portfolio with Q3 results

PSW Energy’s performance in Q3 2025 highlights the McKercher Corporation’s growing leadership in Australia’s renewable energy sector.

As McKercher Corporation reviews its 2025 performance across business divisions, one of the year’s standout results comes from PSW Energy, the group’s flagship renewable energy company based in Western Australia. According to SolarNerds.com.au’s latest quarterly industry rankings, PSW Energy has secured a Top 5 position in solar PV installations and an exceptional 2nd place in energy storage capacity across the state for Q3 2025 — reaffirming the company’s role as a key contributor to the region’s renewable transformation.

Contents

At a Glance

  • Solar PV Installed: 5,019 kW

  • Solar PV Ranking: 4th overall in Western Australia

  • Energy Storage Installed: 4,608 kWh

  • Energy Storage Ranking: 2nd overall in Western Australia

These figures, independently verified by SolarNerds.com.au, provide a data-driven view of PSW Energy’s growth trajectory. The results reflect not only strong consumer confidence but also the company’s ability to scale effectively in one of Australia’s most dynamic energy markets.

Key Points

  • PSW Energy, which includes Perth Solar Warehouse, ranked 4th in solar PV installations with a capacity of 5,019 kW and 2nd in energy storage capacity at 4,608 kWh across Western Australia in Q3 2025, according to SolarNerds.com.au. This achievement solidifies its position as one of the state’s most trusted and capable renewable energy providers.
  • The nearly equal levels of PSW Energy’s installed solar generation and battery storage highlight the accelerating transition toward integrated energy systems. This positions the business—and McKercher Corporation—at the forefront of Western Australia’s journey toward energy self-sufficiency.
  • PSW Energy’s 2025 results underscore McKercher Corporation’s comprehensive sustainability strategy, significantly contributing to the group’s renewable energy portfolio and its long-term investment focus on scalable, low-carbon technologies.

A Year of Transition and Growth

The 2025 third quarter reporting period marks a pivotal phase for McKercher Corporation’s energy and sustainability investments. Western Australia continues to lead the nation in residential solar adoption, and PSW Energy’s consistent performance throughout the year demonstrates its ability to compete — and excel — in an increasingly sophisticated market.

While solar PV installation remains a cornerstone of the business, the surge in energy storage deployments is a key strategic highlight. By ranking 2nd statewide in installed battery capacity, PSW Energy reflects a shift in consumer priorities — toward energy independence, grid stability, and sustainable electrification.

Results

SolarNerds.com.au uses source data derived from the Clean Energy Regulator’s (CER) Renewable Energy Certificate (REC) registry. Q3, 2025, interval data, Western Australia displayed.

The Broader Renewable Energy Landscape

Across Australia, the renewable energy transition is accelerating, and Western Australia stands at the forefront of distributed solar generation. Consumers are increasingly combining solar generation with battery storage, reshaping how homes and businesses interact with the grid.

PSW Energy’s 2025 results mirror this national trend. The company’s near-equal balance between solar generation (5,019 kW) and storage capacity (4,608 kWh) underscores how solar and battery systems are converging into an integrated model for sustainable energy use.

This performance not only strengthens PSW Energy’s position within the market but also reinforces McKercher Corporation’s broader commitment to low-carbon growth, technology-led innovation, and community energy resilience.

Strategic Outlook for 2026 and Beyond

As McKercher Corporation enters the next financial year, the momentum from PSW Energy’s 2025 performance provides a strong foundation for continued investment in renewable energy technologies.

The company’s ability to deliver large-scale installation capacity while maintaining operational excellence positions it as a cornerstone of McKercher’s clean energy strategy — a strategy focused on enabling sustainable growth across residential, commercial, and industrial sectors in Western Australia and beyond.

With energy systems evolving and consumer expectations shifting toward autonomy and sustainability, PSW Energy’s role within McKercher Corporation is both operational and symbolic — representing a commitment to a cleaner, more resilient energy future for all Australians.

References

Regulatory Update: Compliance Requirements for Battery Energy Storage System (BESS) Installations with Existing PV Arrays

The Department of Local Government, Industry Regulation and Safety has released updated guidance clarifying compliance responsibilities when installing Battery Energy Storage Systems (BESS) alongside existing photovoltaic (PV) arrays. This update outlines how contractors must distinguish between a repair and an alteration, ensuring each system meets applicable safety standards under AS/NZS 3000:2018 and AS/NZS 5033:2021.

Contents

Overview

The Department of Local Government, Industry Regulation and Safety has clarified compliance obligations for installing Battery Energy Storage Systems (BESS) with existing photovoltaic (PV) arrays, emphasising the distinction between repairs and alterations under AS/NZS 3000:2018 and AS/NZS 5033:2021. Repairs must meet the standards applicable at the time of the original installation, while alterations—such as adding a BESS—must comply with current standards. Electrical contractors are responsible for verifying the safety of existing PV systems before integration, including checks on wiring, earthing, and isolation equipment. Systems installed before 2015 may require upgrades to meet present requirements.

Publication: Download

Key Points

  • Repairs vs. Alterations: Adding a Battery Energy Storage System (BESS) to an existing PV array is considered an alteration, not a repair — meaning the entire installation must comply with current standards AS/NZS 3000:2018 and AS/NZS 5033:2021, rather than the standards in place at the time of the original install.
  • Safety Verification Required: Before connecting a BESS, electrical contractors must perform a thorough safety verification of the existing PV system, checking wiring, earthing, and isolation to confirm compliance and safe operation.

  • Older Systems May Need Upgrades: PV arrays installed before 2015 may require significant upgrades to meet modern safety and disconnection requirements, while post-2015 systems generally align more closely but must still be verified before integration.

Repairs vs. Alterations: Understanding the Difference

A repair involves restoring an existing system to its original operational state. In this case, the work must comply with the standards that applied at the time of the original installation. By contrast, an alteration—such as adding a BESS or reconfiguring a PV system—constitutes a modification of the existing installation. Alterations must comply fully with current standards, ensuring the system meets today’s safety and performance requirements.

Safety Verification and Compliance Obligations

Before connecting any BESS to an existing PV array, electrical contractors are required to verify the ongoing safety and compliance of the PV system. This includes inspection of wiring integrity, earthing arrangements, and isolation equipment. Systems installed before 2015 may need additional upgrades, as earlier standards did not require certain earthing and disconnection measures now mandated by AS/NZS 5033:2021. Post-2015 systems, while generally closer to compliance, must still undergo full verification to confirm safe integration.

Our Commitment to Compliance and Safety

At Perth Solar Warehouse, we are committed to meeting all regulatory obligations and maintaining the highest standards of electrical safety. Our installation teams follow rigorous compliance verification procedures, ensuring every BESS integration aligns with both regulatory requirements and best-practice electrical safety.

By adhering to these standards, we protect our customers, our workforce, and the long-term integrity of every renewable energy system we deliver.