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

December 3, 2025
Buyers should prepare for increases in the price of vital solar module components, such as polysilicon, wafers and cells, but “remain cautious” of accepting new contractual terms from Chinese suppliers until formal market policies are agreed.
December 3, 2025
The Australian Renewable Energy Agency (ARENA) has announced up to AU$151 million (US$98 million) in conditional funding for Sunman Energy to establish a 500MW per annum solar module manufacturing facility in the Hunter Valley, New South Wales (NSW).
December 2, 2025
Astronergy and JA Solar have 'reached an agreement on cross-licencing' of tunnel oxide passivated contact (TOPCon) patents moving forward.
December 1, 2025
Multinational solar manufacturer Canadian Solar will assume direct control of its US solar PV and energy storage manufacturing operations, in a strategic move which may reduce its supply chain risks.
Premium
December 1, 2025
Steven Xuereb of Kiwa PI Berlin discusses the PV industry’s progress in addressing performance and reliability concerns around TOPCon technology.
November 28, 2025
LONGi has acquired system integrator PotisEdge, and plans to launch an ‘Energy Storage One-Stop Solution’.

Upcoming Events

Upcoming Webinars
December 17, 2025
2pm GMT / 3pm CET
Solar Media Events
February 3, 2026
London, UK
Solar Media Events
March 24, 2026
Dallas, Texas
Solar Media Events
April 15, 2026
Milan, Italy
Solar Media Events
June 16, 2026
Napa, USA