Capacity assessment involves calculating based on equipment + checking records (Source: Mars): Golden Rule: A mismatch in the number of production lines indicates a fake claim (Source: Mars); Core: The three factors of OEE (Source: qdmodun); Note: Real-time video walkthrough (Source: CHINAISPP).
I.
Equipment-based Estimation
5GW: A genuine 5GW plant requires 4–6 stringers and 8–10 laminators (Source: Mars); Matching: Capacity alignment across each step (Source: Mars); Reconciliation: Mismatched production line counts indicate a fake claim (Source: Mars); Equipment: EL tester models must match the capacity (Source: Jingsun); Inventory: Equipment list and monthly output (Source: GRL)—Estimation: Production lines + Equipment + Matching (Three-way check).
II.
Record Verification
Monthly Reports: Monthly production output reports (Source: Mars); Electricity Costs: Electricity bills of $1–3 million/month for a 5GW plant (Source: Mars); Shipping: Shipping manifests covering 3–6 months (Source: Mars); Ledgers: Production logs/ledgers (Source: Jingsun); Actuals: Actual completed figures, not forecasts (Source: SupplierAlly)—Records: Monthly reports + Electricity bills + Shipping data (Three-way proof).
III. OEE Metrics
OEE: Overall Equipment Effectiveness—the gold standard (Source: qdmodun); Availability: Machine uptime/availability (Source: qdmodun); Performance: Performance relative to rated speed (Source: qdmodun); Quality: Quality of finished goods (Source: qdmodun); Example: Claimed 100% capacity vs. 50% actual OEE (Source: qdmodun)—OEE: Availability × Performance × Quality (Three factors).
IV.
Video Walkthrough
Real-time: Live video, not pre-recorded promotional footage (Source: CHINAISPP); Visibility: All claimed machinery is visible (Source: CHINAISPP); TOPCon: Focus on TOPCon/HJT production line packaging workshops (Source: Jingsun); Shifts: Machine output based on shift operating hours (Source: SupplierAlly); Cross-reference: Correlation of machines, shifts, and output (Source: SupplierAlly)—Walkthrough: Real-time + Equipment + Shifts (Three checks).
V.
Third-Party Audits
SGS: Factory inspections by SGS, BV, or Qima (Source: CHINAISPP); Surprise: Unannounced or semi-announced audits (Source: CHINAISPP); Reports: Reports include photos of every major piece of equipment (Source: CHINAISPP); On-site: On-site verification visits (Source: CHINAISPP); Production Line: Auditing stable production line processes (Source: Leeline)—Audit: SGS + Reports + On-site (Three methods).
VI. Capability Dimensions
Scale: Peak monthly production capacity (Source: ESZONEO); Lead Time: Product family lead times, MOQs, and safety stock levels (Source: ESZONEO); Scalability: Capacity to scale up to meet project requirements (Source: ESZONEO); Quality Control: Incoming material, in-process, and finished product testing; QC personnel (Source: ESZONEO); Calibration: Equipment calibration and preventive maintenance (Source: xmtopenergy)—Dimensions: Scale + Lead Time + Scalability (Three Capabilities).
VII.
Procurement Recommendations
First, calculate equipment (production line matching); second, check records (monthly reports, electricity bills); third, review OEE (Overall Equipment Effectiveness); fourth, conduct walkthroughs (real-time video);
fifth, arrange audits (SGS third-party)—Capacity Assessment: Equipment + Records + Audits (Three-pronged closed-loop approach).
