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

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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°.

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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.

2 February 2027
London, UK
Returning in 2027 for its 14th edition, Solar & Storage Finance Europe will bring together the brightest minds representing funds, banks, developers, utilities, government and industry across Europe and the UK on a programme that is solutions-focused from top to tail. The event is designed to enable leaders at the forefront of solar and storage investment and deployment in Europe to scale, learn and land themselves industry defining partnerships.

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