List Download—Tendering Platforms & BOM Guides (Source: Yancheng Trading): Golden Rule: Prioritize official platforms (Source: Yancheng Trading); Core: Government procurement tenders (Source: Chinese Government Procurement Network); Note: BOMs must include quantities and prices (Source: Forum).
I.
Official Channels
Yancheng: Yancheng Public Resource Trading Center (Source: Yancheng Trading); Procurement Network: Chinese Government Procurement Network tender announcements (Source: Chinese Government Procurement Network); Platform: National Public Resource Trading Platform (Source: ggzy); List: Bill of Quantities (BOQ) pricing schedule (Source: Yancheng Trading);
Free: Free download of tender attachments (Source: Yancheng Trading)—Official: Platform + Tender + Free (Three Advantages).
II. BOM Guides
Forum: Forum Electrical BOM Complete Guide (Source: Forum); OmniSol: EPC BOS Component List (Source: OmniSol); Surge: Installation Materials & Tools Checklist (Source: Surge); QES: 2026 Equipment Procurement Guide (Source: QES); NPC: PV Power Plant Step-by-Step Construction Guide (Source: NPC)—Guides: BOM + List + Procurement (Three Tools).
III. List Contents
Modules: Monocrystalline, polycrystalline, and bifacial modules (Source: Forum); Inverters: String, central, and hybrid inverters (Source: Forum); Mounting Structures: Aluminum alloy and galvanized steel structures (Source: Qidong); Cables: PV-specific copper-core cables (Source: Qidong); Protection: SPDs, fuses, and circuit breakers (Source: OmniSol) — Scope: Modules, inverters, and mounting structures (three main categories).
IV.
BOS Classification
Combiner: Combiner boxes (2–16 strings) (Source: OmniSol); AC: AC protection and distribution (MCB, RCBO) (Source: OmniSol); DC: DC disconnect switches and fuses (Source: OmniSol); Connections: MC4 branch/Y-connectors (Source: OmniSol); Grounding: Grounding hardware and accessories (Source: OmniSol) — BOS: Combiner, protection, and connections (three sub-categories).
V. Tender Templates
Yongsheng Village: Yongsheng Village PV project tender (Source: Chinese Government Procurement Network);
Grounding Flat Bar: Hot-dip galvanized grounding flat bar (Source: Chinese Government Procurement Network); Ground Piles: 114mm cylindrical screw piles (Source: Chinese Government Procurement Network); Jiaxing: Materials for Jiaxing PV energy-saving project (5.59 million RMB) (Source: ggzy); Specifications: Full details on dimensions, materials, and thickness (Source: Chinese Government Procurement Network) — Tenders: Templates, specifications, and pricing (three references).
VI. Download Essentials
Official Site: Government Public Resource Trading Platform (Source: Yancheng Trading); Attachment: Technical Specifications from the Tender Document (Source: ggzy); Type: Excel Bill of Quantities (Source: Yancheng Trading); Authority: EPC Industry Guide Website (Source: OmniSol); Verification: Select the template based on project scale (Source: Forum)—Download: Official Site + Attachment + Type (Triple Verification).
VII.
Procurement Recommendations
First, download tender documents (government procurement attachments); second, review the BOM (Forum guidelines); third, categorize the BOS (combiner, protection, and connection components); fourth, verify specifications (galvanization thickness);
fifth, check pricing (tender budget)—Checklist: Official Sources + BOM + Tender Documents (Three Sources).
