SPI Energy planning HJT cell manufacturing in the US

July 14, 2023
Facebook
Twitter
LinkedIn
Reddit
Email
Heterojunction cells and modules are forming part of the shift towards n-type in the industry. Image: Hevel Solar

SPI Energy’s PV manufacturing subsidiary Solar4America has said that it will start manufacturing heterojunction technology (HJT) n-type solar cells in the US by the end of 2024.

The company is headquartered in California, where it currently produces passivated emitter and rear contact (PERC) modules for rooftop and utility-scale deployments, the capacity of which is expected to reach 2.4GW by the end of 2023.

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

PV Tech has contacted SPI Solar to inquire about the capacity of the new cell production facility, and the location has yet to be determined.

Denton Peng, chairman and CEO of SPI Energy, said: “We are excited about this significant step in our strategic expansion. The production of HJT solar cells aligns with our commitment to providing cutting-edge renewable energy technology while reducing carbon footprints globally.”

Using multiple silicon-based layers atop an n-type silicon substrate, HJT cells offer higher conversion rates than tradition p-type cells. The solar industry as a whole is transitioning from PERC – which has been the norm for solar cell technology for decades – into HJT and tunnel oxide passicated contact (TOPCon) cell technologies.

Solar manufacturer JA Solar spoke with PV Tech at the SNEC conference earlier this year about the ongoing n-type ‘transition period’.

The US has been attempting to double down on PV manufacturing in its Inflation Reduction Act (IRA); the announcement of cell capacity from SPI – though most likely fairly small scale – will be what is needed to fully establish a foothold in PV manufacturing for the US.  

16 June 2026
Napa, USA
PV Tech has been running PV ModuleTech Conferences since 2017. PV ModuleTech USA, on 16-17 June 2026, will be our fifth PV ModulelTech conference dedicated to the U.S. utility scale solar sector. The event will gather the key stakeholders from solar developers, solar asset owners and investors, PV manufacturing, policy-making and and all interested downstream channels and third-party entities. The goal is simple: to map out the PV module supply channels to the U.S. out to 2028 and beyond.
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 third PV CellTech conference dedicated to the U.S. manufacturing sector. The events in 2023, 2024 and 2025 were a sell out success and 2026 will once again 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. The goal is simple: to map out PV manufacturing in the U.S. out to 2030 and beyond.

Read Next

March 18, 2026
Danish independent power producer (IPP) European Energy has inaugurated the 108MW Lancaster Solar Farm in northern Victoria.
Premium
March 17, 2026
PV Talk: Premier Energies' Vinay Rustagi explores how India’s rapid renewable energy expansion is colliding with the limitations of its grids.
March 17, 2026
Sunsure has secured INR6.06 billion (US$65.6 million) in debt financing to develop solar projects across Maharashtra and Uttar Pradesh.
March 17, 2026
US corporate clean energy procurement hit a record high in 2025, growing by 12% with the majority of deals for solar PV capacity, according to the Clean Energy Buyers Association (CEBA).
March 17, 2026
IPP rPlus Energies has secured over US$650 million in debt facilities to support construction work at its Blacks Creek Energy Centre in Idaho.
March 17, 2026
Japanese-owned renewables firm Idemitsu Renewables has begun operations at a utility-scale solar-plus-storage project in California.

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