Solar innovations from NRW

NRW.BANK acquires stake in paXos Solar GmbH from Langenfeld

paXos Solar secures participation of NRW.BANK for expansion of sales, production and next generation of the multi-energy roof.
News by Marc Nemitz Marc Nemitz · Münster, 15. October 2025

NRW.BANK is participating in the capital increase of paXos Solar GmbH from Langenfeld as part of its NRW.SeedCap program. The fresh capital will be used to expand sales and production and to further develop the next generation of the innovative multi-energy roof, which generates electricity and heat directly from the building envelope.

With our investment via the NRW.SeedCap program, we are specifically supporting the development of sustainable solutions from North Rhine-Westphalia that contribute to the successful transformation of our state.

Johanna Antonie Tjaden-Schulte

Karsten Birkholz, Managing Director of paXos Solar GmbH, adds:"With NRW.BANK, we have gained a partner who believes in the energy of the future - decentralized, aesthetic and sustainable. Together, we are taking the multi-energy roof from NRW to the next level."

Integrated energy system for the buildings of the future

paXos Solar GmbH develops and produces the so-called multi-energy roof, an integrated roof system that combines photovoltaics and solar thermal energy in an architecturally appealing way. This allows both electricity and heat to be generated directly via the roof surface. A space-saving and aesthetic solution that meets the growing demand for sustainable, subsidizable and high-quality energy concepts for new buildings and renovations.

Successful financing round for more growth

The capital increase of paXos Solar GmbH was supported by 15 equity investors, including two institutional investors - one of which is NRW.BANK. The aim of the measure is to further accelerate the growth of the company, which was founded in 2020. The funds will be used to expand sales, increase efficiency in production and invest in research and development for the next product generation. With the fresh capital, the company is setting the course for the scaling of its sustainable energy solutions.


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