Highland Materials’ US silicon production could be ‘game changer’ for US solar

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Highland Materials president Richard Rast told PV Tech Premium that there is an “opportunity for innovation” in the US manufacturing sector. Image: Meyer Burger

New entrants into the US polysilicon manufacturing space could be a “game changer” for the US solar sector, Solar Media head of research Finlay Colville told PV Tech Premium this week.

Colville spoke to PV Tech Premium about Highland Materials’ receipt of US$256 million in tax credits to build a polysilicon manufacturing facility in Tennessee, with Highland Materials president Richard Rast noting that there is an “opportunity for innovation” in the US manufacturing sector.

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Highland Materials first announced the award of the tax credits in April, as part of a wave of investment into more than 100 projects to accelerate clean energy manufacturing and recycling in industrial facilities in the US. This is particularly significant for the polysilicon sector in particular, and the solar industry more broadly, as China has come to dominate global polysilicon production, with Chinese-made products accounting for 79.4% of the world’s polysilicon in 2021, up from 28.6% a decade earlier.

Last month, a group of solar manufacturers investing in the US sector, calling itself the Solar Energy Manufacturers for America (SEMA) Coalition, called on the government to address this imbalance. The SEMA Coalition suggested the US solar supply chain has “glaring gaps,” which have left US-based manufacturers at a disadvantage.

Rast also told PV Tech Premium that Highland Materials will be using a new manufacturing process at the facility, which he dubbed a “naturally occurring process of segregation,” the latest adjustment to the solar manufacturing process.

To read the full analysis of Highland Materials’ plans and their significance for US solar manufacturing, visit PV Tech Premium here.

13 October 2026
San Francisco Bay Area, USA
PV Tech has been running an annual PV CellTech Conference since 2016. PV CellTech USA, on 13-14 October 2026 is our fourth PV CellTech conference dedicated to solar manufacturing in the USA. From polysilicon, wafers, ingots, cells and modules, to critical component suppliers including glass and frames, the event connects every stage of the value chain under one roof. PV CellTech USA also brings together investors, innovators, manufacturers and industry stakeholders to collaborate and strengthen domestic solar manufacturing across the United States.
20 April 2027
Istanbul, Türkiye
PV Tech has been running PV CellTech Conferences since 2016. PV CellTech Global, on 20-21 April 2027, is the meeting place for everyone invested in the growth of PV manufacturing and advancement in cell technologies, which will drive us towards the installed capacity required to power the planet by 2050. This is a gathering of key stakeholders driving capital expenditure and technologies for new PV manufacturing plants across the globe to harness the opportunities the growth of PV represents out to 2050 and beyond. The conference takes place in one conference room, where all senior peers have the same shared experience of learning and unique insight, unmatched anywhere else in the solar industry events calendar.

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