German startup 1Komma5° to build up to 5GW TOPCon module assembly plant

Facebook
Twitter
LinkedIn
Reddit
Email
1Komma5° targets to start production of its modules in 2024 with an initial annual nameplate capacity of 1GW. Image: 1Komma5°.

Hamburg-based energy startup 1Komma5° has planned to set up a 5GW tunnel oxide passivated contact (TOPCon) module assembly plant in Germany.

With a target to start commercial operations in 2024, the plant will have an initial annual nameplate capacity of 1GW before increasing it to 5GW by 2030, said Jannik Schall, co-founder of 1Komma5°.

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

Founded in 2021, the startup launched its own solar modules at the end of 2022 using German-made polysilicon, according to the company.

The announcement follows a recent investment from venture capital company 2150, who will invest an undisclosed double-digit million euro amount to further develop and expand the software application of its “Heartbeat” software along with the opening of a development site and test laboratory in Berlin next year.

This financing follows upon a Series B financing of €250 million (US$263 million) in equity and a further €215 million in the form of re-investment options.

The production plant is expected to be located either in Brandenburg or Saxony, said Jannik Schall, co-founder of 1Komma5°. Moreover, The startup currently covers several markets in Europe – Germany, Sweden, Denmark, Spain, Finland and Italy – and Australia.

17 June 2025
Napa, USA
PV Tech has been running PV ModuleTech Conferences since 2017. PV ModuleTech USA, on 17-18 June 2025, will be our fourth 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 2026 and beyond.
2 December 2025
Málaga, Spain
Understanding PV module supply to the European market in 2026. PV ModuleTech Europe 2025 is a two-day conference that tackles these challenges directly, with an agenda that addresses all aspects of module supplier selection; product availability, technology offerings, traceability of supply-chain, factory auditing, module testing and reliability, and company bankability.
10 March 2026
Frankfurt, Germany
The conference 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. The goal is simple: to map out PV manufacturing out to 2030 and beyond.

Read Next

April 28, 2025
Fraunhofer ISE has developed a solar cell which uses “one-tenth” of the amount of silver as a standard cell.
April 28, 2025
The German Federal Network Agency, the Bundesnetzagentur, has launched the country’s latest rooftop solar PV, seeking 282MW.
April 25, 2025
Vietnamese solar manufacturer Boviet Solar has opened its first US module assembly plant, in North Carolina, with an annual nameplate capacity of 2GW.
April 24, 2025
Swiss solar manufacturer Meyer Burger has reduced shifts for around 300 employees at its Thalheim cell manufacturing facility amid supply chain challenges.
April 23, 2025
Germany’s latest public auction for ground-mounted solar PV capacity ended “significantly oversubscribed”, according to the German electricity regulator, the Bundesnetzagentur.
April 14, 2025
Bert Thin Films has used a copper paste on a tunnel oxide passivated contact (TOPCon) M10 solar cell with a conversion efficiency of 24%.

Subscribe to Newsletter

Upcoming Events

Media Partners, Solar Media Events
May 7, 2025
Munich, Germany
Solar Media Events
May 21, 2025
London, UK
Solar Media Events
June 17, 2025
Napa, USA
Solar Media Events
July 1, 2025
London, UK
Solar Media Events
July 1, 2025
London, UK