# McKercher Corporation: full reference > A Perth, Western Australia group advancing electrification, sustainable energy infrastructure, services, and bespoke intelligent systems for service operations. Founded 2004 in Perth, Western Australia. Parent of PSW Energy, Perth Solar Warehouse, and McKercher Labs. ## Organisation - Legal name: McKercher Corporation Pty Ltd (ACN 164 130 581, ABN 55 332 185 818) - Founded: 2004, Perth, Western Australia - Electrical contractor licence: EC010771 - Certifications held by PSW Energy: ISO 9001:2015, ISO 14001:2015, ISO 45001:2018 (Bureau Veritas) - Registered office: Suite 15, 222 Walter Road, Morley, Western Australia, 6062 - Operations: 3/90 Discovery Drive, Bibra Lake, Western Australia 6163 - Phone: (08) 6171 4111 · Email: hello@mckerchercorp.com ## Brands - **PSW Energy**: https://mckercher.com.au/psw-energy/ - **Perth Solar Warehouse**: https://mckercher.com.au/perth-solar-warehouse/ - **McKercher Labs**: https://mckercher.com.au/mckercher-labs/ ## Work 1. Energy services & engineering: in-house, accredited, independently audited installation. 2. Sustainable energy supply: solar photovoltaics, battery storage, EV charging across WA. 3. Intelligent systems: connected workflows, information, customer communication, and decision support for service operations. ## Pages - About: https://mckercher.com.au/about/ - Work: https://mckercher.com.au/capabilities/ - Brands: https://mckercher.com.au/brands/ - Pulse: https://mckercher.com.au/news/ - Contact: https://mckercher.com.au/contact/ - Careers: https://mckercher.com.au/careers/ - Mission: https://mckercher.com.au/mission/ - Inside McKercher: https://mckercher.com.au/inside/ - People and Organisation: https://mckercher.com.au/people/ ## People - [Derek McKercher](https://mckercher.com.au/people/derek-mckercher/): Founder & Director. Group direction, corporate responsibility, and licensed electrical contracting across McKercher Corporation. - [Nicole Bilman](https://mckercher.com.au/people/nicole-bilman/): Chief Executive Officer · PSW Energy & Perth Solar Warehouse. Executive responsibility for the jointly operated energy businesses, including operating capability, leadership, and service delivery. - [Taylor Cooper](https://mckercher.com.au/people/taylor-cooper/): Field Manager. Field delivery, crew coordination, technical standards, and on-site accountability across the group energy businesses. - [Mark Rutherford](https://mckercher.com.au/people/mark-rutherford/): Operations & Logistics. Operations planning, logistics, procurement, and supply coordination supporting installation delivery across the group energy businesses. - [Ben Colewell](https://mckercher.com.au/people/ben-colewell/): Business Manager. Business operations, commercial performance, and day-to-day management across the group energy businesses. - [David Bishop](https://mckercher.com.au/people/david-bishop/): Sales Manager. Sales strategy, team leadership, and customer acquisition across the group energy businesses. - [Andrew Trewin](https://mckercher.com.au/people/andrew-trewin/): Customer Success. Customer support, service coordination, and post-installation care across the group energy businesses. ## Pulse (99 items) ### Awards & Recognition - [Perth Solar Warehouse Receives Four 2026 SunWiz Awards](https://mckercher.com.au/perth-solar-warehouse-sunwiz-awards-2026/) | 14 May 2026 SunWiz records Perth Solar Warehouse in four 2026 award categories using installation and customer-review measures from the 2025 calendar year. - [McKercher Named in Two 2026 Smart Energy Award Categories](https://mckercher.com.au/smart-energy-awards-2026-finalist/) | 18 Apr 2026 An April 2026 company notice reported finalist positions for McKercher Corporation and Nicole Bilman in two Smart Energy Council award categories. - [Tesla Premium Installer Recognition for PSW in 2026](https://mckercher.com.au/2026-tesla-premium-certified-installer/) | 16 Feb 2026 A retained Tesla certificate names PSW Energy and Perth Solar Warehouse as a Premium Certified Installer valid for 2026. - [Perth Solar Warehouse Receives 2024 EUPD Recognition](https://mckercher.com.au/eupd-research-top-installer-awards-2024/) | 1 Oct 2024 PSW Energy and Perth Solar Warehouse reported receiving an EUPD Research Top Installer Award for a second consecutive year in 2024. - [PSW Places in the 2024 SunWiz Awards](https://mckercher.com.au/sunwiz-awards-top-5-solar-installers-in-wa/) | 1 Mar 2024 The migrated record states that PSW Energy and Perth Solar Warehouse placed fourth in a Western Australian category and twelfth in a national customer-rating category in 2024. - [Tesla Performance Excellence Award, Q4 2023](https://mckercher.com.au/tesla-performance-excellence-award/) | 1 Feb 2024 PSW Energy and Perth Solar Warehouse reported receiving a Tesla Performance Excellence Award for Q4 2023 following year-on-year Powerwall sales growth. - [Tesla Premium Certified Installer Recognition in 2024](https://mckercher.com.au/tesla-premium-certified-installer/) | 1 Jan 2024 PSW Energy and Perth Solar Warehouse reported Tesla Premium Certified Installer recognition for a third consecutive year in January 2024. - [Perth Solar Warehouse Receives Legendary Rating in 2023](https://mckercher.com.au/solarquotes-legendary/) | 14 Dec 2023 PSW Energy and Perth Solar Warehouse reported attaining SolarQuotes Legendary installer status in 2023, based on review rating, volume and recency. - [PSW Energy receives 2023 EUPD Top Brand PV Installer award](https://mckercher.com.au/eupd-research-awards/) | 30 Oct 2023 PSW Energy received an EUPD Research Top Brand PV Installer award at the inaugural Australian installer event in Melbourne in October 2023. - [Perth Solar Warehouse Recognised in the 2023 SunWiz Awards](https://mckercher.com.au/top-10-solar-companies-australia-2023/) | 4 May 2023 SunWiz recognised Perth Solar Warehouse in two customer-rating categories at its Australian installer awards on 4 May 2023. - [Huawei Elite Reseller Recognition in 2021](https://mckercher.com.au/huawei-elite-reseller/) | 11 Jun 2021 PSW Energy and Perth Solar Warehouse were identified as inaugural Australian Huawei Elite Resellers during a 2021 partner event. ### Bulletins - [Installer bulletin: CSIP-AUS registration for Powerwall 3 in WA](https://mckercher.com.au/installer-bulletin-csip-aus-registration-wa-network-2026/) | 14 Aug 2026 Guidance current at 14 August 2026 states that AC-coupled Powerwall 3 configurations are not supported in any capacity. Two pathways remain: new solar wired directly to the integrated inverter, or migration of suitable existing PV onto it. This bulletin sets out those pathways, the CSIP-AUS registration process, the export limit position, and the two failures behind most registration problems on site. - [Installer Bulletin: Powerwall 2 Recall Now Routes Replacements Through the Original Installer](https://mckercher.com.au/installer-bulletin-powerwall-2-recall-installer-scheduling-2026/) | 12 Aug 2026 The Australian Competition and Consumer Commission updated recall PRA 2025/20611 for the Tesla Powerwall 2 on 12 August 2026. The notice now directs owners of affected systems to contact their original installer to schedule the free replacement, with Tesla support as the fallback. The affected units and the underlying hazard are unchanged. - [Installer Bulletin: What the CER's Battery Inspections Are Failing](https://mckercher.com.au/installer-bulletin-cer-battery-inspection-findings-2026/) | 1 Aug 2026 The Clean Energy Regulator reported results for 2,642 solar battery inspections finalised by 8 June 2026, with recurring installation findings. - [Installer Bulletin: Powerwall 3 Course Bundle Now Carries SAA CPD Points](https://mckercher.com.au/installer-bulletin-powerwall-3-course-saa-accredited-cpd-2026/) | 31 Jul 2026 Tesla has confirmed its Powerwall 3 Course Bundle is now an accredited course under Solar Accreditation Australia, worth 10 CPD points toward an accredited installer's annual requirement. - [Installer Bulletin: WA Fine Over Apprentices Directed to Test Live Circuits](https://mckercher.com.au/installer-bulletin-apprentice-supervision-live-work-fine-2026/) | 29 Jul 2026 Building and Energy has secured a conviction against an electrical worker who directed two junior apprentices to conduct live testing on energised lighting circuits without appropriate supervision. - [Installer Bulletin: $25,000 in WA Fines Over Battery Back-Feed Wiring and a False Notice of Completion](https://mckercher.com.au/installer-bulletin-battery-back-feed-prosecution-wa-2026/) | 29 Jul 2026 Western Australia's Director of Energy Safety prosecuted an electrical contractor and an electrical worker over a Maylands battery installation wired so it could unintentionally back-feed the network during an outage. The contractor was fined $20,000 for submitting a notice of completion that declared the work complete, compliant and safe. The worker was fined $5,000. - [Installer Bulletin: Powerwall 3 and Powerwall 2 Compatibility Moves to Official Firmware](https://mckercher.com.au/installer-bulletin-powerwall-3-powerwall-2-firmware-rollout-2026/) | 28 Jul 2026 Tesla confirmed in July 2026 that mixed Powerwall 2 and Powerwall 3 systems had moved from pilot firmware to an official release, with official firmware to become standard at commissioning from mid-August. That date has passed, and the parallel pilot arrangement described in the original notice has ended. - [Installer Bulletin: Installers Rank Sigenergy First in 2026 Battery Survey](https://mckercher.com.au/installer-bulletin-installers-choice-battery-survey-2026/) | 27 Jul 2026 SolarQuotes asked 125 vetted installers which home battery they would put in their own home. Sigenergy ranked first while a product recall was open at publication. - [Installer Bulletin: CER Suspends 21 Companies and Warns on Verification Selfies](https://mckercher.com.au/installer-bulletin-cer-enforcement-verification-photos-2026/) | 23 Jul 2026 The Clean Energy Regulator's latest enforcement update suspends 21 companies from the SRES, moves to bar a retailer for three years, and puts installer verification selfies under active monitoring. - [Installer Bulletin: Sigenergy Moves Power Sensor Range In-House With New Part Numbers](https://mckercher.com.au/installer-bulletin-sigenergy-power-sensor-update-2026/) | 22 Jul 2026 A July 2026 Sigenergy product notice recorded four new -WI power sensor part numbers and manufacturer-stated RS485 compatibility. - [Installer Bulletin: New Sizing Tool Could Help Cut Oversized Battery Quotes](https://mckercher.com.au/installer-bulletin-pylon-battery-sizing-tool-2026/) | 19 Jul 2026 A June 2026 product report described battery-sizing software alongside NETCC compliance activity for the January to March quarter. - [Installer Bulletin: Smart Installer Roadshow Comes to Perth on 28 July](https://mckercher.com.au/installer-bulletin-smart-installer-roadshow-perth-2026/) | 19 Jul 2026 An archived notice for the Smart Energy Council's Perth roadshow scheduled for 28 July 2026 and its advertised CPD programme. - [Installer Bulletin: Tesla Warns Against Unauthorised Bidirectional Charging Claims](https://mckercher.com.au/installer-bulletin-tesla-v2x-sigenergy-warning-2026/) | 18 Jul 2026 A July 2026 Tesla Channel Partner notice disputed third-party bidirectional charging claims, including claims involving Sigenergy equipment. - [Bulletin, March 2026: Powerwall, Nantong and wet roofs](https://mckercher.com.au/bulletin-march-26/) | 31 Mar 2026 A historical index of the product, event, operating-location and safety matters recorded in the McKercher Corporation bulletin for March 2026. - [Bulletin, February 2026: inverter testing and SWIS changes](https://mckercher.com.au/bulletin-feb-26/) | 28 Feb 2026 A historical index of the compliance, connection and organisational matters recorded in the McKercher Corporation bulletin for February 2026. - [Bulletin, January 2026: leadership and battery evidence](https://mckercher.com.au/bulletin-jan-26/) | 31 Jan 2026 A historical index of the leadership, compliance, partnership and service matters recorded in the McKercher Corporation bulletin for January 2026. - [Bulletin, November 2025: Drilling controls, a Sigenergy recall, and falls rescue](https://mckercher.com.au/bulletin-november-2025/) | 23 Nov 2025 The November 2025 bulletin covers controlled drilling procedure, the Sigenergy SigenStor EC change notice and subsequent recall, and falls rescue planning. - [Bulletin, September 2025: battery testing requirements](https://mckercher.com.au/bulletin-september-2025/) | 30 Sep 2025 A historical index of the battery testing matters recorded in the McKercher Corporation bulletin for September 2025. - [Bulletin, December 2024: year-end operating record](https://mckercher.com.au/bulletin-december-2024/) | 20 Dec 2024 A historical index of the McKercher Corporation year-end record for 2024, with links and evidence limitations. - [Bulletin, October 2024: Powerwall training and CPR rules](https://mckercher.com.au/bulletin-october-2024/) | 31 Oct 2024 A historical index of the training, licensing, standards and organisational matters recorded in the McKercher Corporation bulletin for October 2024. - [Bulletin, September 2024: Powerwall 3 and battery safety](https://mckercher.com.au/bulletin-september-2024/) | 30 Sep 2024 A historical index of the product and safety matters recorded in the McKercher Corporation bulletin for September 2024. - [Bulletin, August 2024: GEN24, Powerwall 3 and vehicle controls](https://mckercher.com.au/bulletin-august-2024/) | 31 Aug 2024 A historical index of the product, workmanship and safety matters recorded in the McKercher Corporation bulletin for August 2024. - [Bulletin, July 2024: SigenStor, Aiko and installation safety](https://mckercher.com.au/bulletin-july-2024/) | 31 Jul 2024 A historical index of the product, licensing and safety matters recorded in the McKercher Corporation bulletin for July 2024. ### Company News - [Commercial solar feasibility in WA: the checks before system sizing](https://mckercher.com.au/commercial-solar-feasibility-wa/) | 14 Aug 2026 Commercial solar feasibility starts with interval demand, the point of connection and site constraints. Roof area and an advertised certificate value do not establish a viable system size. - [Commercial solar connection pathways on the Western Power network](https://mckercher.com.au/commercial-solar-western-power-connection/) | 14 Aug 2026 Commercial solar connection is a separate workstream from equipment selection. This guide distinguishes Western Power's current technical review pathway from WA reforms that remain under consultation. - [WA Government Opens Consultation on Solar, Battery and EV Charger Connections](https://mckercher.com.au/wa-government-der-connections-consultation-2026/) | 20 Jul 2026 The WA Government has published an issues paper with seven proposals to improve data quality and connection timeframes for solar, batteries and EV chargers on the SWIS. - [Nicole Bilman named 2026 Emerging Leader runner-up](https://mckercher.com.au/nicole-bilman-emerging-leader-2026/) | 20 May 2026 The Smart Energy Council named Nicole Bilman of PSW Energy and Perth Solar Warehouse runner-up for the 2026 Emerging Leader Award. - [WA Residential Battery Scheme guide for retailers and installers](https://mckercher.com.au/wa-residential-battery-scheme-installer-guide/) | 1 May 2026 A current operational reference for WA battery retailers and installers covering scheme eligibility, vendor approval, technical requirements and evidence. - [Nicole Bilman CEO: PSW Energy and Perth Solar Warehouse](https://mckercher.com.au/nicole-bilman-appointed-ceo-of-psw-energy/) | 27 Jan 2026 Nicole Bilman was appointed Chief Executive Officer of PSW Energy and Perth Solar Warehouse from 2 February 2026 after progressing through operational leadership. - [Customer Service Platform Upgrade, 24–31 January 2026](https://mckercher.com.au/customer-service-platform-upgrade/) | 23 Jan 2026 This archive record documents the customer management platform migration planned for PSW Energy and Perth Solar Warehouse across 24 to 31 January 2026. - [Cheaper Home Batteries Program: 1 May 2026 changes](https://mckercher.com.au/cheaper-home-batteries-program-expanded/) | 13 Dec 2025 The expanded federal battery program now applies capacity tiers and installation-date certificate factors that should be checked before quoting. - [PSW Installation Timeframe Refinements](https://mckercher.com.au/psw-installation-timeframe-refinements/) | 7 Dec 2025 PSW Energy refined scheduling for installations that need additional site, electrical, access, or commissioning work. - [PSW Energy Strengthens Renewable Portfolio With Q3 Results](https://mckercher.com.au/psw-energy-strengthens-renewable-portfolio-with-q3-results/) | 21 Oct 2025 This record preserves Q3 2025 solar and battery installation figures attributed by the migrated article to SolarNerds reporting for Western Australia. - [PSW Energy ISO management system certifications issued in 2025](https://mckercher.com.au/psw-achieves-iso-certification-9001-45001-45001/) | 1 Mar 2025 Bureau Veritas certificates issued in January 2025 record PSW Energy management systems against ISO 9001, ISO 14001 and ISO 45001. - [Increasing Investment in Sustainable Energy Infrastructure Business](https://mckercher.com.au/increasing-investment-in-sustainable-energy-infrastructure-business/) | 1 Apr 2021 This migrated record documents the April 2021 relocation of Perth Solar Warehouse and PSW Energy operations to a larger Bibra Lake facility. - [German-Made Solar Equipment at Perth Solar Warehouse](https://mckercher.com.au/german-made-solar-systems-a-viable-solution/) | 26 Jul 2014 A dated record of the strategy Perth Solar Warehouse ran from 2014: purchasing scale and direct retail applied to selected German-made solar equipment. - [Sustainable Energy - McKercher Corporation Pty Ltd](https://mckercher.com.au/sustainable-energy/) | 12 May 2014 A historical record of the position that energy infrastructure should be judged across sourcing, manufacture, use and end of life, not by operating emissions alone. - [Why Perth Solar Warehouse Uses In-House Installation Teams](https://mckercher.com.au/solar-installers/) | 9 Apr 2014 Perth Solar Warehouse uses PSW Energy, the McKercher group's installation and engineering arm, to keep delivery accountability inside the organisation. - [Perth Solar Warehouse Establishes Installation Team in 2014](https://mckercher.com.au/perth-solar-development/) | 13 Feb 2014 A migrated 2014 article records McKercher Corporation launching a dedicated installation department for Perth Solar Warehouse. ### Compliance & Safety - [Multi-state investigations test what consumer code compliance can enforce](https://mckercher.com.au/solar-retailer-investigations-consumer-code-compliance-2026/) | 14 Aug 2026 A solar retailer expelled from the New Energy Tech Consumer Code in December 2025 continued trading and is now the subject of investigations in three states and by the Clean Energy Regulator. The sequence sets out plainly what expulsion from the code does and does not do, and why Western Australia is the exception. - [First independent review of the NETCC sets ten priorities for consumer protection standards](https://mckercher.com.au/netcc-independent-review-consumer-standards-2026/) | 12 Aug 2026 The New Energy Tech Consumer Code has been reviewed independently for the first time since it began. The review finds a code that works in principle, carries more weight than its original mandate anticipated, and is constrained by the governance built for a smaller scheme. - [Construction training levy threshold lifts to $100,000 while safety training funding holds](https://mckercher.com.au/wa-construction-training-levy-threshold-safety-training-2026/) | 10 Aug 2026 The threshold at which the Construction Training Fund levy becomes payable in Western Australia rose fivefold on 1 July 2026, the first change since 1999. What the same fund pays toward training apprentices and workers did not move with it. - [Cheaper Home Batteries Growth Brings Compliance Pressure](https://mckercher.com.au/cheaper-home-batteries-compliance-complaints-2026/) | 19 Jul 2026 Battery uptake under the federal program has grown quickly, while ACCC and NETCC reporting shows why sizing, installation, and complaint handling need scrutiny. - [WA electrical licensing requirements for electrical work](https://mckercher.com.au/dmirs-electrical-licensing-wa-2026/) | 3 Apr 2026 A current reference to WA electrical licensing, contractor verification, notices and technical obligations, and the checks to run before work begins. - [Solar battery photo evidence rules from March 2026](https://mckercher.com.au/new-photographic-evidence-rules-for-solar-batteries/) | 1 Mar 2026 The Clean Energy Regulator requires geotagged and time-stamped evidence of critical labelling for every eligible solar battery installation. - [WA Battery Installation Safety and Compliance Checks](https://mckercher.com.au/installing-residential-battery-systems-safety-and-compliance/) | 25 Feb 2026 WA electrical licence holders must complete and document specific safety checks when commissioning battery systems with hybrid inverters. - [WA solar and battery connection requirements from May 2026](https://mckercher.com.au/solar-battery-requirements-changes-from-may-2026/) | 31 Jan 2026 The connection settings applying in WA since 1 May 2026: the 30 kVA inverter capacity cap, remote management, the 1.5 kW export fallback and the Region B inverter configuration. - [How McKercher Corporation Handles Personal Information](https://mckercher.com.au/unified-cybersecurity-and-data-protection-commitment/) | 22 Dec 2025 McKercher Corporation applies a consistent privacy and information-security approach across its group businesses, public website, and staff systems. - [Testing Grid-Connected Hybrid Inverters in WA](https://mckercher.com.au/testing-requirements-grid-connected-hybrid-inverters/) | 8 Dec 2025 WA guidance identifies the neutral, earthing, protection and documentation checks required when hybrid inverters operate in backup mode. - [Sigenergy Recall: 8, 10 and 12 kW Single-Phase Controllers](https://mckercher.com.au/sigenergy-recalls-8-12-kw-single-phase-inverters/) | 21 Nov 2025 Certain Sigenergy single-phase Energy Controllers are subject to an Australian product recall because their AC plugs may overheat and create a fire risk. - [Adding Batteries to Existing WA Solar, Compliance Guide](https://mckercher.com.au/regulatory-update-batteries-installed-with-existing-solar/) | 18 Oct 2025 WA guidance explains when existing solar components may remain, when repairs use original standards and when altered parts must meet current requirements. - [Sigenergy Gateway Clearance Update, PCN2025019](https://mckercher.com.au/sigenergy-optimises-gateway-installation-distance-requirements/) | 23 Sep 2025 Sigenergy PCN2025019 revised installation-clearance diagrams for several Sigen Energy Gateway models without changing their product codes. ### Events - [Half the cost of battery accreditation is funded, and enrolling first does not secure it](https://mckercher.com.au/battery-workforce-training-grants-half-course-fees-2026/) | 21 Aug 2026 A $1.6 million grant program running to the end of 2027 will meet half the cost of battery training for eligible businesses. Training providers have begun promoting it to Western Australian installers on a first come, first served basis. The body administering the program describes the process differently, and the difference decides whether a business that enrols today is funded at all. - [Perth Solar Warehouse Northern Suburbs Facility](https://mckercher.com.au/perth-solar-warehouse-northern-suburbs-facility/) | 30 Sep 2025 The Neerabup facility established a northern operating base for Perth Solar Warehouse and PSW Energy alongside the group headquarters in Bibra Lake. - [PSW Energy Yields Improved Growth With V.2 Research Centre](https://mckercher.com.au/psw-energy-yields-improved-growth/) | 13 Jun 2020 This migrated record documents the second PSW Energy Research Centre in Yangebup and the solar, battery and inverter systems displayed there at the time. - [PSW Energy Research Centre by Perth Solar Warehouse A New Customer Experience](https://mckercher.com.au/perth-solar-warehouse-expansion/) | 5 Oct 2017 This migrated record documents the establishment of PSW Energy and the development of its online customer experience from 2017 to 2018. ### Market Commentary - [Cheaper Home Batteries passes 500,000 installations](https://mckercher.com.au/cheaper-home-batteries-500000-installations-market-2026/) | 14 Aug 2026 The Australian Government announced on 14 August 2026 that more than 500,000 batteries have been installed under the Cheaper Home Batteries Program. The accredited installer base has doubled to 8,846 since the program commenced, which is the figure with the most direct bearing on how the market behaves from here. - [The Battery Market Slowdown Is Partly a Reporting Lag](https://mckercher.com.au/battery-market-slowdown-reporting-lag-2026/) | 7 Aug 2026 Battery registrations fell sharply after the 1 May certificate changes. Part of that fall is a reporting artefact, because installers have twelve months to create certificates and recent months are always incomplete when first published. - [Announced 1 MW Commercial Solar Rebate Cap](https://mckercher.com.au/sres-1mw-commercial-solar-market-2026/) | 5 Aug 2026 The Commonwealth will lift the Small-scale Renewable Energy Scheme's maximum eligible system size tenfold, from 100 kW to 1 MW. The change is scheduled for 1 October and remains subject to regulation. - [WA Household Battery Capacity Grew 39 Per Cent as Wholesale Prices Set a Record](https://mckercher.com.au/aemo-q2-2026-wa-battery-uptake-wholesale-prices/) | 31 Jul 2026 AEMO's Quarterly Energy Dynamics for the June 2026 quarter records a 39 per cent rise in Western Australian household battery capacity alongside a record average wholesale energy price in the Wholesale Electricity Market. - [What GenCost 2025-26 Means for the Battery Market](https://mckercher.com.au/gencost-2025-26-battery-storage-costs-report/) | 17 Jul 2026 CSIRO and AEMO's GenCost 2025-26 work records another double-digit fall in large-scale battery costs and keeps firmed renewables as the lowest-cost pathway. - [PSW Energy Places Fourth for Solar and Third for Batteries in WA](https://mckercher.com.au/2025-solarnerds-annual-industry-review/) | 10 Feb 2026 The 2025 Solaris Awards place PSW Energy fourth in Western Australia for solar capacity and third for battery capacity across systems below 100 kW. ### Partnerships - [Sigenergy releases a thermal insulation board for SigenStack packs, and places Australia in the optional band](https://mckercher.com.au/sigenstack-pack-thermal-insulation-board-product-release-notice/) | 21 Aug 2026 Sigenergy issued a product release notice on 21 August 2026 introducing an optional thermal insulation board that snaps around individual SigenStack battery packs to cut heat loss and reduce heating pad consumption. It releases on 15 September 2026. The notice sets its guidance by latitude rather than by market, which places Western Australia across two different bands. - [Sigenergy adds a DC combiner box and changes the battery controller codes](https://mckercher.com.au/sigenstack-dc-combiner-box-product-release-notice/) | 18 Aug 2026 Sigenergy issued a product release notice on 18 August 2026 introducing the SigenStack BC CMB-4, a DC combiner box that connects up to four SigenStack Battery Controllers in parallel to a single commercial and industrial hybrid inverter. It releases on 30 September 2026. The same notice records a product code transition for the battery controllers themselves, and the existing controller models are not compatible with the combiner box. - [SigenStack BC cable now offered in an 8m length](https://mckercher.com.au/sigenstack-bc-cables-8m-product-change-notice/) | 13 Aug 2026 Sigenergy issued a product change notice on 13 August 2026 introducing an 8m SigenStack BC cable kit alongside the existing 4m version. The longer kit carries the same electrical specification and connection types, and is scheduled for release on 30 August 2026. It removes a layout constraint on commercial and industrial installations where the battery controller and the inverter cannot be positioned close together. - [NETCC Approved Seller certificates for McKercher energy businesses](https://mckercher.com.au/netcc-approved-seller-2027/) | 19 Apr 2026 PSW Energy and Perth Solar Warehouse hold separate NETCC Approved Seller certificates, each with a published expiry date in May 2027. - [PSW attended Sigenergy Smart Energy Centre launch in Nantong](https://mckercher.com.au/sigenergy-smart-energy-centre-launch/) | 13 Mar 2026 PSW Energy and Perth Solar Warehouse representatives attended Sigenergy's Smart Energy Centre inauguration in Nantong in March 2026. - [Kleenheat Spark Appoints PSW Energy as Installation Partner](https://mckercher.com.au/kleenheat-spark-installation-partnership-agreement/) | 27 Dec 2025 A historical record of Perth Solar Warehouse's appointment as a primary installation partner for the Kleenheat Spark program in Western Australia. - [Sigenergy installer rebate programme announced for early 2026](https://mckercher.com.au/sigenergy-supports-australian-installers/) | 17 Dec 2025 The migrated record describes a Sigenergy rebate programme announced for eligible Australian installers for January to April 2026. - [PSW Adopts Australian-Made Tindo Solar Panels](https://mckercher.com.au/psw-adopts-australian-tindo-solar-panels/) | 11 Dec 2025 PSW Energy and Perth Solar Warehouse added Tindo Solar modules to their product offering in December 2025, giving customers an Australian-manufactured panel option. - [Tesla Installer Performance Score: 2025 framework](https://mckercher.com.au/tesla-installer-performance-score-tips/) | 30 Nov 2025 Tesla's 2025 installer briefing described a performance framework covering certification, commissioning, diagnostics, activation and customer feedback. - [SigenStor AC Output Interface Product Change Notice](https://mckercher.com.au/sigenstor-ac-output-interface-product-change-notice/) | 30 Oct 2025 Sigenergy issued PCN2025018 for an AC output interface change in October 2025. A later Australian recall now controls action for affected single-phase controllers. - [PSW Energy Completes REC Alpha Pure-RX Installation](https://mckercher.com.au/rec-alpha-pure-solar-panel-installation/) | 14 Jan 2025 A historical summary of selected REC Alpha Pure-RX installation considerations. It is not a substitute for current manufacturer instructions. - [Perth Solar Warehouse Adds Jinko Bifacial Solar Panel](https://mckercher.com.au/new-jinko-bifacial-solar-panel/) | 17 Dec 2024 Perth Solar Warehouse added the Jinko Tiger Neo All-Black Bifacial dual-glass panel to its product range in December 2024. - [Aiko Neostar 2P Arrives in Western Australia](https://mckercher.com.au/aiko-neostar-2p-solar-panel/) | 6 Sep 2024 Perth Solar Warehouse added the Aiko Neostar 2P solar panel in September 2024, extending its residential and commercial module range. - [Tesla Powerwall 3 Reaches Australia in August 2024](https://mckercher.com.au/tesla-powerwall-3/) | 16 Aug 2024 Tesla Powerwall 3 became available to order in Australia in August 2024, when Perth Solar Warehouse attended the Sydney product launch. - [Bluetti Stockist at Perth Solar Warehouse](https://mckercher.com.au/bluetti-stockist-perth-solar-warehouse/) | 2 Jul 2024 A dated record of Perth Solar Warehouse adding Bluetti portable power equipment to its retail range. - [PSW Energy Launches Sigenergy Showcase in 2024](https://mckercher.com.au/psw-energy-delivers-sigenergy-showcase/) | 5 Jun 2024 A historical record of the June 2024 SigenStor approval milestone and PSW Energy's Sigenergy Showcase launch. - [PSW Adds SigenStor During its 2024 Australian Launch](https://mckercher.com.au/sigenergy-sigenstor-partnership/) | 1 May 2024 A historical record of Perth Solar Warehouse and PSW Energy adding Sigenergy SigenStor to their product activity in May 2024. - [Aiko Solar Enters the Australian Market](https://mckercher.com.au/aiko-solar-panels-add-fierce-competition/) | 5 Mar 2024 A historical record of Aiko Solar's 2024 Australian launch and the participation of PSW Energy and Perth Solar Warehouse. - [Tesla Energy Tech Talk 2023](https://mckercher.com.au/tesla-energy-tech-talk-2023/) | 16 Nov 2023 A historical record of the Tesla Energy Tech Talk held in Perth by Tesla Energy, PSW Energy and Perth Solar Warehouse on 16 November 2023. - [Huawei FusionSolar and iStore: the Australian transition](https://mckercher.com.au/huawei-fusionsolar-vacating-australian-solar-market/) | 20 Sep 2023 A historical record of the Huawei FusionSolar and iStore product transition described for the Australian market from 2024. - [Perth Solar Warehouse Joined the Fronius Solutions Partner Program](https://mckercher.com.au/fronius-solutions-partner/) | 9 Jul 2020 Perth Solar Warehouse announced its participation in the Australian Fronius partner program in July 2020, supporting trained product installation and service. - [PSW Energy Completes Tesla Installer Onboarding](https://mckercher.com.au/tesla-certified-installer/) | 29 May 2020 The migrated company record states that PSW Energy completed Tesla Certified Installer onboarding and offered local access to Tesla Powerwall. - [PSW Energy Joins the SMA PowerUP Partner Program](https://mckercher.com.au/sma-power-up-partner/) | 18 Jan 2019 A historical record of PSW Energy's inclusion in the initial Australian SMA Power-Up partner group in January 2019. ### Product Updates - [Powerwall 3 compatibility with existing Powerwall 2 systems](https://mckercher.com.au/powerwall-2-powerwall-3-compatibility/) | 10 Mar 2026 Tesla now supports eligible mixed Powerwall 2 and Powerwall 3 systems, subject to software, gateway, capacity and installer requirements. - [Australian solar panel price forecast for early 2026](https://mckercher.com.au/solar-panel-price-increase-australia-q1-q2-2026/) | 21 Jan 2026 A historical record of McKercher Corporation's January 2026 solar panel price forecast and the evidence limitations that prevent it being treated as an outcome. - [Silicon Wafer Prices Rebound in Historical Market Data](https://mckercher.com.au/silicon-wafer-prices-rebound/) | 8 Sep 2024 A historical market note on a reported rebound in silicon wafer prices and the possible effect on solar module pricing at the time.