

In Calendar Week 17, the TaiyangNews PV Price Index takes a breather after 8 weeks of continued declines.
While stable WoW, the polysilicon category has declined by ~16%-17% month-on-month (MoM), with listed products losing more than a fifth to nearly a third of their value year-to-date (YtD).
The 3 n-type wafer products were also stable WoW.
After moving into the negative between CW13 and CW14, the cell category was flat WoW in CW17.
Module prices have been the most resilient in CY2026, still holding in the green YtD.
After remaining steady since their first declines of 2026 in CW11, 3.2 mm solar glass prices fell by 5.1%, while 2.0 mm glass declined by 10.2% WoW.
Overall, the TaiyangNews PV Price Index remains firmly in the red in CY2026, with modules the only segment still in positive territory YtD. While prices were stable in CW17, polysilicon and wafers are down over 20% YtD, while solar glass and cells have recorded high-single- to low-double-digit declines.
The data refers to average product prices in China. The data was collected by Chinese market research firm Gessey PV Consulting.
Disclaimer: TaiyangNews does not guarantee reliability, accuracy or completeness of this price index’ content. TaiyangNews does not accept responsibility or liability for any errors in this work.