Solar wafer, cell price hikes underscore new polysilicon pricing volatility

October 18, 2021
Facebook
Twitter
LinkedIn
Reddit
Email
Large area wafer production at a LONGi facility. Image: LONGi Solar.

Recent solar wafer and cell price increases from both LONGi Solar and Tongwei, which have seen prices rise by between 5.6 – 7.7%, have underscored heightened volatility in the solar supply chain.

Last week LONGi Solar announced an increase in the price of its solar wafers across the board. Prices for its 166mm M6 and 182mm M10 wafers are to increase by 6.8% on pricing from last month, the full details of which are below.

This article requires Premium SubscriptionBasic (FREE) Subscription

Try Premium for just $1

  • Full premium access for the first month at only $1
  • Converts to an annual rate after 30 days unless cancelled
  • Cancel anytime during the trial period

Premium Benefits

  • Expert industry analysis and interviews
  • Digital access to PV Tech Power journal
  • Exclusive event discounts

Or get the full Premium subscription right away

Or continue reading this article for free

Wafer size14 September Price11 October Price% Increase
158mmUS$0.72US$0.765.6%
166mm (M6)US$0.73US$0.786.8%
182mm (M10)US$0.88US$0.946.8%
LONGi Solar wafer prices as of 11 October 2021.

The move followed a similar price hike from solar cell producer Tongwei, which last week revealed its cell prices for the month of October were up by as much as 7.7% on September’s prices. The full details of Tongwei’s price hike are below.

Cell sizeSeptember PriceOctober Price% Increase
166mmRMB1.06/WRMB1.12/W5.6%
210mmRMB1.04/WRMB1.12/W7.7%
Tongwei solar cell prices for October 2021.

Material, component and module prices have soared in the past fortnight after Chinese authorities imposed restrictions on power consumption and manufacturing operations in the wake of an ongoing power and coal crisis in the country. Factory utilisation rates have fallen as a result, and an already turbulent period for the solar value chain has become even harder to navigate.

Last week PV Tech Premium reported how module prices have soared to in excess of US$0.30c/W in some instances – prices not seen since 2019 – while a shortage of silicon metals triggered by the collapsing output has driven polysilicon prices to a new annual high.  

9 March 2027
Location To Be Confirmed
PV CellTech Global will gather the key stakeholders from PV manufacturing, equipment/materials, policy-making and strategy, capital equipment investment and all interested downstream channels and third-party entities. Join us in Q1 of 2027

Read Next

Premium
April 2, 2026
Analysis: Some in the US solar industry are positioning tariffs as a silver bullet for manufacturers, but it may not be as straightforward as that.
April 1, 2026
Toyo Solar shipped 4.5GW of cells in FY2025, surpassing its full-year target, while module shipments reached 249MW.
March 27, 2026
Two module production facilities in China have been awarded the first Supply Traceability Standard certifications by Europe’s Solar Stewardship Initiative (SSI).
March 26, 2026
More than 70% of global solar manufacturing facilities exhibited “major” or “critical” defects in 2025, according to a new report from Intertek CEA.
March 25, 2026
TCL Zhonghuan has reported a 2025 loss alongside a raft of executive changes as its operating revenue rose slightly year-on-year.
March 23, 2026
PV recycling capacity in Europe is lagging behind forecast waste volumes over the coming decades, according to a new study.

Upcoming Events

Solar Media Events
April 15, 2026
Milan, Italy
Solar Media Events
June 16, 2026
Napa, USA
Solar Media Events
October 13, 2026
San Francisco Bay Area, USA
Solar Media Events
November 3, 2026
Málaga, Spain
Solar Media Events
November 24, 2026
Warsaw, Poland