Author

Marian Willuhn pv magazine editor

Marian Willuhn pv magazine editor

Marian Willuhn

Covering online news on the German market and editing the German print issue since 2021, Marian has been writing about power electronics for pv magazine’s global website and monthly print magazine since 2018.

Articles written by Marian Willuhn

Finance

BBDF 2025: Understanding BESS project bankability Financing remains one of battery energy storage system's (BESS) biggest talking points, as bankability, risk mitigation, insurance, and more.

Jul 16, 2025

Grid-scale

BBDF 2025: Flexible grid access opens up new paths for battery storage in Germany Flexible connections, better optimization, and theneed for better cooperation between parties for grid connections were all hot topics in the German-focused second session of the event.

Jul 16, 2025

Industry

BBDF 2025: Europe’s battery market is still immature From the floor of the Battery Business & Development Forum 2025, the first session delivered insights around investment strategies in battery energy storage systems across Europe and the UK.

Jul 16, 2025

Supply chain

Varta CEO: ‘We wanted too much in too short a time’ Michael Ostermann, who last year took over as CEO of German battery giant Varta AG, tells pv magazine about guiding the company through its financial restructure, the causes of the crisis, and returning the brand to a position of strength.

Jun 11, 2025

Grid-scale

Green Flexibility to develop 80 MWh battery for experimental German grid project Grid companies LEW Verteilnetz and Bayernwerk have launched a pilot project to feed renewable energy into the electricity network in a more grid-friendly manner. One of the energy storage sites to be used in the project will come from Green Flexibility.

Jun 10, 2025

Software

France’s Socomec launches battery monitoring software The commercial energy storage system maker is introducing a new, artificial intelligence-backed monitoring platform to enable better battery maintenance.

Jun 03, 2025

Sodium-ion batteries

Biwatt launches commercial sodium-ion energy storage product The manufacturer has unveiled a 155 kWh sodium-ion battery energy storage system for commercial and industrial (C&I) customers.

May 15, 2025

Distributed

Dutch manufacturer Atmoce launches retrofit-ready home battery The company is targeting older home PV arrays with its M-ELV product, which does not require replacement of solar inverters.

May 07, 2025

Fire risk and safety

Balcony-battery manufacturer says cells were not responsible for German fire Zendure has issued a statement following an investigation into the cause of a fire in Neuenhaus, Lower Saxony. The manufacturer stated battery cells were not the cause.

Apr 24, 2025

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