SolarWelt using teamtechnik stringers in new 400MW German assembly plant

Facebook
Twitter
LinkedIn
Reddit
Email
A production hall for precision modules at Heckert Solar featuring stringer technology from Teamtechnik. Image: Heckert Solar

New Germany-based PV module manufacturer SolarWelt has signed a volume order with Freiberg-based PV stringer specialist teamtechnik to enable the production of monocrystalline half-cut PERC (166 x 83 mm cells) with 9 busbars into high-efficiency modules at its planned facility in Thuringia.

teamtechnik said that SolarWelt, as sister company to existing module manufacturer Heckert Solar, ordered an unspecified large number of its TT2100 generation plus layup systems to fabricate the high-efficiency modules. 

This article requires Premium SubscriptionBasic (FREE) Subscription

Unlock unlimited access for 12 whole months of distinctive global analysis

Photovoltaics International is now included.

  • Regular insight and analysis of the industry’s biggest developments
  • In-depth interviews with the industry’s leading figures
  • Unlimited digital access to the PV Tech Power journal catalogue
  • Unlimited digital access to the Photovoltaics International journal catalogue
  • Access to more than 1,000 technical papers
  • Discounts on Solar Media’s portfolio of events, in-person and virtual

Or continue reading this article for free

The Stringer TT2100 was said to have been specially designed for high-precision processing of 9-busbar PERC cells that are soldered via extremely small pads (roughly 1.0 x 0.7mm) on the front and rear of the cells. The challenge was to position nine narrow ribbons accurately onto the small pads at high speed, according to teamtechnik.

Danny Bönisch, project manager for SolarWelt said, “We are familiar with teamtechnik production systems at Heckert Solar and we know that they will enable us even to exceed our own high-quality standards.”

SolarWelt is expected to begin production in the first quarter of 2021 with a production capacity of around 400MWp.

7 October 2025
San Francisco Bay Area, USA
PV Tech has been running an annual PV CellTech Conference since 2016. PV CellTech USA, on 7-8 October 2025 is our third PV CellTech conference dedicated to the U.S. manufacturing sector. The events in 2023 and 2024 were a sell out success and 2025 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

July 15, 2025
Indian renewable energy company SAEL Industries is developing a 5GW solar cell and 5GW module manufacturing facility in Greater Noida, Uttar Pradesh.
July 15, 2025
Greater policy clarity will be needed if Germany is realise its FPV potential, according to a report from Fraunhofer ISE.
July 14, 2025
For the first time ever, solar PV was the biggest source of electricity in June 2025, according to data from energy think tank Ember.
July 14, 2025
OpenSolar has launched a new model to help US rooftop solar installers reduce costs and thrive despite the loss of the 30% IRA tax credit.
July 8, 2025
The Chinese government has moved to curb excessive competition in the PV sector and stabilise pricing as companies report growing losses.
July 8, 2025
Germany could install 500GW of new solar agrivoltaics (agriPV) capacity on its most 'suitable' land, according to Fraunhofer ISE.

Subscribe to Newsletter

Upcoming Events

Media Partners, Solar Media Events
September 2, 2025
Mexico City, Mexico
Solar Media Events
September 16, 2025
Athens, Greece
Solar Media Events
September 22, 2025
Bilbao, Spain
Solar Media Events
September 30, 2025
Seattle, USA
Solar Media Events
October 1, 2025
London, UK