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.  

Read Next

February 27, 2026
Daqo New Energy cut its financial losses and its revenues in 2025 as China’s efforts to moderate its polysilicon industry began to take effect.
Premium
February 26, 2026
Analysis: As new duties threaten to block PV producers from India, Laos and Indonesia from the US market, the outcome of the Section 232 polysilicon investigation could put an end to the question of who will be next.
February 26, 2026
Chinese polysilicon and PV module manufacturer Tongwei has announced a significant plan to acquire competitor Qinghai Lihao Clean Energy.
Premium
February 26, 2026
Europe’s somewhat delicate position in global solar means it is uniquely-positioned to take advantage of global supply chain uncertainties.
February 24, 2026
Increased renewable energy penetration in Europe's leading clean energy markets will lead to more fluctuations in power prices.
February 17, 2026
US solar equipment provider Nextpower has signed a three-year deal to supply Jinko Solar with solar PV module frames, made in the US.

Upcoming Events

Solar Media Events
March 24, 2026
Dallas, Texas
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