China TOPCon Solar Cell Prices Stabilize as Holiday Lull Slows Trading

Why It Matters

Stable TOPCon pricing preserves module margins for manufacturers, while upcoming capacity shifts could reshape the supply‑demand balance in the global PV market.

Key Takeaways

• TOPCon M10 cell price steady at $0.0486/W week‑on‑week
• Prices down 15.7% from early‑March year‑to‑date peak
• Major manufacturer upgrades lines in May, may boost capacity
• Other producers plan maintenance, could curb supply growth
• Polysilicon and wafer prices stabilize, easing downstream cost pressure

Pulse Analysis

The TOPCon (Tunnel Oxide Passivated Contact) architecture has become a cornerstone of high‑efficiency silicon modules, and its price trajectory is closely watched by downstream manufacturers. After a series of weekly declines, the $0.0486 per watt price reported for the M10 cell in early May signaled a pause, largely attributable to China’s Labor Day holiday that throttled market liquidity. This lull gave buyers a brief reprieve, allowing them to lock in costs while inventory levels at cell factories remained steady.

Looking ahead, supply‑side dynamics are set to dominate the pricing narrative. A leading Chinese cell maker is slated to complete upgrades on its TOPCon production lines in May, a move that could lift utilization rates and add several gigawatts of capacity to the market. Simultaneously, rival manufacturers are scheduling maintenance to trim output amid softer demand, creating a counterbalancing effect. Analysts anticipate that the net impact will hinge on how quickly the upgraded lines ramp up and whether maintenance curtails enough supply to keep the market in equilibrium during the second quarter of 2026.

On the upstream front, polysilicon and wafer markets are showing modest recovery. FOB China N‑type M10 wafer prices and EXW China mono‑premium polysilicon have fallen 22.8% and 36.1% year‑to‑date, respectively, but recent procurement spikes suggest a bottom may have been reached. Stabilizing wafer costs provide a cost‑side cushion for cell and module manufacturers, yet broader wafer demand remains muted due to lingering overseas weakness and domestic inventory pressures. Overall, the convergence of steady TOPCon pricing, upcoming capacity adjustments, and easing wafer costs sets the stage for a cautiously optimistic outlook for the global PV supply chain.