The downward trend extended into its 7th consecutive week in Calendar Week 15, although declines were limited to just 2 categories in the TaiyangNews PV Price Index.
While stable week-on-week (WoW), the polysilicon category has declined by ~15%-20% month-on-month (MoM), with listed products losing a fifth to nearly a third of their value year-to-date (YtD)..
The 3 n-type wafer products have seen steady, gradual declines since CW4, falling by 2.2%-3.7% WoW, with YtD declines ranging from 23.5% (n-type 210 mm, 130 µm) to 28.0% (n-type 182 mm, 130 µm).
Although not to the same degree, cell prices mirrored the wafer trend, dropping by 1.4%-1.7% WoW. The segment has now slipped into negative territory YtD.
After several weeks of broad-based declines, the modules category was flat WoW in CW15.
Solar glass prices also remained steady WoW, following their first declines of 2026 in CW11.
Overall, the TaiyangNews PV Price Index has firmly turned negative in CY2026, with modules the only segment still in positive territory YtD. The current downturn has now stretched to 7 consecutive weeks: polysilicon and wafers are down over 20% YtD, while solar glass and cells have posted single-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.
