GK-5-60HG

Last verified 2026-10-06.

• Legal manufacturer as printed: Gokin Solar Co., Ltd.
• Gokin prints the cell type as GBC, with 120 cells (6x20) and 3.2 mm tempered glass in a single glass module, and its own news page says GBC uses back-contact cells that remove front-side gridline shading.
• The datasheet is marked for the AU market only, with product data updated as of July 2025, and Gokin lists it in its Australian download centre.
• The 23.9% efficiency headline applies to the 530 W code only; the datasheet prints 23.7% for the 525 W code.
• The full Australian A3 warranty, effective 1 July 2025, names GK-5-60HG-xxxM, where xxx means nominal power, but does not explicitly name GK-5-60HG-525M or GK-5-60HG-530M. Exact-code warranty coverage remains unresolved, so this record remains evidence rather than a score. The family-template conditions below do not establish entitlement for either numeric code or a particular customer.
• This record covers the single glass GK-5-60HG only and is not joined to the GK-5-60HGb, GK-5-60HGBD or GK-5-60HGDb families.
• The Clean Energy Regulator's list of approved PV modules, at its 11 September 2026 version, lists GK-5-60HG-525M and GK-5-60HG-530M under Gokin Solar Co Ltd as tested to IEC 61215 (2021) and fire tested, approved on 2 February 2026 and expiring on 2 February 2029. The same list's GK-5-60HGb, GK-5-60HGBD and GK-5-60HGDb rows are other families and are not read into this record.
• For the named family template, the policy lists a 15-year product term, replaced by 25 years only for residential rooftop installations. Coverage requires Class A modules as stated in the sales contract; this contractual quality condition is separate from the regulator's fire-tested classification. No particular customer's eligibility has been verified.
• The BC power schedule runs for 30 years: at least 99% after year one, subsequent annual loss no greater than 0.35%, and at least 88.85% at year 30. Measurement uses STC (1000 W/m2, AM1.5, 25 C cell temperature and 0 m/s wind), accepted independent laboratory testing and IEC 60904 equipment tolerance. These are conditional warranty-output terms, not independent field-yield results or a transferred TOPCon schedule.
• Warranty commencement is delivery to the Initial Customer or six months after factory shipment, whichever comes first. The Initial Customer is the contract buyer and may be different from the homeowner; installation is not the stated commencement event.
• Claims require written or email notice within 30 days of identifying a defect, with the model, purchase evidence, serial number, project location and supporting photographs or data. Returns require authorisation; unauthorised returns remain at the customer's risk and cost.
• Gokin chooses the remedy: repair, replacement, additional modules or a residual/output-gap value based on current market price and remaining life. Repaired or replacement units retain only the original remaining warranty term, and a discontinued module may be replaced by a different product with at least equivalent power. Necessary shipping compensation requires approval and documentation; dismantling, repacking, installation and reinstallation costs remain with the customer. Laboratory dispute costs ultimately fall to the losing party.
• Transfer requires written notice, modules remaining at the initial site, full payment, whole-warranty assignment and acceptance by the new owner; ownership evidence must be supplied within 15 days if requested. The policy excludes specified relocation, installation/manual violations, unauthorised repairs, extreme environments, surge/extraordinary events and unpaid modules. These warranty conditions are not environmental-durability test results.
• Gokin Solar Co., Ltd. is the named warrantor; the Australian entity is separately listed as a local contact. Australian statutory rights are preserved. The governing warranty and catalogue were reviewed on 6 October 2026; the technical sheet and 11 September CER evidence retain their stated dates. This review does not establish stock, pricing, current regulatory renewal or exact numeric-code warranty coverage.

• Gokin GK-5-60HG 525-530W datasheet (AU)https://www.gokinsolar.com/upload/download/GK-5-60HG%20525-530%20AU-202511-V02.pdf

  Prints the product as a GBC module with single glass, GK-5-60HG, with codes GK-5-60HG-525M and GK-5-60HG-530M, 120 GBC cells, 23.7% and 23.9% efficiency, AU market only, and the legal name Gokin Solar Co., Ltd.

• Gokin AU download centre, module datasheetshttps://www.gokinsolar.com/au/download/4

  Lists the GK-5-60HG 525-530W datasheet in Gokin's Australian download centre, separately from the GK-5-60HGb 520W datasheet.

• Gokin news: GBC modules in winter (7 Nov 2025)https://www.gokinsolar.com/en/news/339

  States that Gokin GBC uses back-contact cell technology that removes front-side gridline shading.

• Gokin AU limited warranty for solar modules (effective 1 July 2025)https://www.gokinsolar.com/upload/download/GKM%C2%B7TN-SW-P001-F003%20A3%20Limited%20Warranty%20for%20Solar%20Modules%202507AU.pdf

  Covers the family only as the template GK-5-60HG-xxxM, where xxx means nominal power, and lists GK-5-60HGb, GK-5-60HGBD and GK-5-60HGDb as separate types.

• Clean Energy Regulator, CEC approved PV modules (version of 11 September 2026)https://cer.gov.au/document/cec-approved-pv-modules-0

  Lists the two exact GK-5-60HG codes as approved to IEC 61215 (2021) and fire tested, from 2 February 2026 to 2 February 2029.

• Gokin Australian warranty cataloguehttps://www.gokinsolar.com/au/download/14

  Current official catalogue links the same governing A3/2507AU PDF already cited; current response bytes match. Catalogue listing date is not treated as a new effective date.