Author
Jochen Siemer
Jochen joined pv magazine in 2023. He began working as a freelance journalist in 1988. A few years later, he found himself focusing on renewable energies. Since 2021, he has dealt exclusively with photovoltaics in all its aspects – from scientific studies on the development of the global market to the product presentation of a new roof hook.
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Articles written by Jochen Siemer
Vertical floating PV plant comes online in Germany
Sinn Power has deployed a 1.8 MW vertical solar array on a quarry lake in the Bavarian municipality of Gilching. The company highlights the ecological benefits of the vertical system configuration and, perhaps surprisingly, its high resistance to storms.
Oct 15, 2025
Solar-Fabrik debuts back-contact solar module for residential, C&I applications
From pv magazine Germany German solar manufacturer Solar-Fabrik has introduced its first back-contact (BC) solar module, the Mono S4 Halfcut BC Full Black, designed for residential and commercial & industrial (C&I) applications. The 480 W panel is built with 108 half-cells based on n-type monocrystalline silicon wafers and achieves a conversion efficiency of 23.52%. It measures […]
Fraunhofer ISE testing agrivoltaics on standard weather protection covers
Fraunhofer ISE and German weather protection specialist VOEN Vöhringer are testing an agrivoltaic system that uses existing crop cover structures to support solar modules, eliminating the need for a dedicated mounting system.
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PI Berlin, PVEL, Extel Energy unite under Kiwa brand
PV Evolution Labs (PVEL), Extel Energy, and PI Berlin have unified under the Kiwa brand. Dutch company Kiwa, which has acquired the three PV testing laboratories over the past three years, says it aims to more effectively present its range of services for the solar industry.