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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.

Module power output distortion on rise

A study by German research institute Fraunhofer ISE has revealed a troubling trend. Data shows that modules are increasingly attributed higher power ratings than they actually have. Though the percentages are incremental, it all
adds up.

Elastocalorics could replace heat pumps, air conditioning systems

Elastocalorics have the potential to replace current air conditioning and heating systems, offering significant energy savings when paired with technologies such as photovoltaics.

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.

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