Author
Jochen Siemer pv magazine
Jochen Siemer pv magazine

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.

Articles written by Jochen Siemer

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Study finds major problems in battery storage systems’ operation Twaice surveyed 83 engineers, technicians, managers and operators of large battery storage systems (BESS) about their most urgent concerns.
Jochen Siemer
Feb 14, 2025
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Germany’s Heckert Solar launches C&I energy storage brand Commercial and industrial (C&I) battery energy storage systems (BESS) will be sold at the same location as photovoltaic company Heckert Solar, under the same management.
Jochen Siemer
Feb 14, 2025
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Austria commissions its largest battery storage facility The storage facility featuring six Megapack 2XL systems from Tesla was built over a seven-month period in the vicinity of a wood gas generator and a solar farm. The project has a power output of 12 MW and storage capacity of 24 MWh.
Jochen Siemer
Feb 10, 2025
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Germany’s Manz announces insolvency application The production equipment manufacturer cited “market distortions in the European battery cell market” as the main reason.
Jochen Siemer
Dec 20, 2024
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Germany’s RWE and coal company Peabody plan 5.5 GW of US solar and batteries The partners want projects on reclaimed mining areas in Indiana and Illinois. German utility RWE is acquiring a majority stake in Peabody project developer R3 Renewables.
Jochen Siemer
Nov 25, 2024
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Germany: Bavaria inaugurates 200 MWh battery as Baden-Württemberg prepares for big energy storage site Swiss battery developer MW Storage has built a 100 MW/200 MWh battery energy storage system (BESS) in Arzberg, Bavaria, and German utility EnBW is planning a 100 MW/100 MWh project at the Marbach gas-fired power plant.
Sandra Enkhardt, Jochen Siemer
Nov 12, 2024
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Germany’s Enpal announces launch of virtual power plant Enpal and Entrix's Flexa joint venture aims to create the basis for marketing thousands of photovoltaic home storage systems like a large battery – with very short-term transactions. Enpal says this will bring great benefits to participating households.
Jochen Siemer
Nov 05, 2024
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Battery storage systems
The Mobility House, GESI to deliver 8 GW of battery storage in Germany The portfolio is to be implemented by a joint venture between the two companies by 2035. The Mobility House will contribute its experience in commercilization of the batteries, while GESI will handle project coordination and financing.
Jochen Siemer
Jun 25, 2024
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Solarwatt Battery flex
Solarwatt launches DC version of Battery flex storage system Solarwatt says it has developed a DC version of its Battery flex PV storage system. The new version offers backup power and is optimized for the Steca SolBrid hybrid inverter.
Jochen Siemer
Jun 13, 2024

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