Author

Marian Willuhn

Marian Willuhn

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.

marian.willuhn@pv-magazine.com

Articles written by Marian Willuhn

Fire risk and safety

Balcony battery storage system catches fire in German home In Lower Saxony, a battery energy storage unit reportedly triggered a fire in a residential building. The lithium iron phosphate (LFP) system reportedly caught fire, for reasons that are unclear.

Apr 01, 2025

Revenue streams

Tesvolt launches new C&I battery storage system with 15 year performance guarantee With two cycles per day, the Forton can be loaded without voiding its 15-year performance guarantee. That opens the possibility of trading on the electricity market, enabling companies to recoup their investment more quickly.

Mar 26, 2025

Supply chain

German home battery sales collapse but larger systems on the rise German energy storage sales are shrinking, especially home systems, but commercial and industrial (C&I) and utility-scale numbers are rising and the Federal Association of Energy Storage Systems (BVES) wants faster permitting and better regulation.

Mar 25, 2025

Policy

‘Without energy storage, renewables are not serious power plants’ Chinese inverter and energy storage maker Sungrow invited 300 guests from 20 European countries to its ESS [energy storage system] Experience Day event in Munich, Germany. Discussions focused on energy storage, projects, market figures, and the energy transition. The conclusion: More storage and grid expansion are needed.

Mar 21, 2025

Revenue streams

Enspired, Volytica work battery aging into energy storage trading algorithm Enspired has joined hands with battery diagnostic service provider Volytica to include degradation in its trading optimization services.

Jan 30, 2025

R&D

Researchers in Switzerland develop biodegradable fungi battery A team from the Swiss Federal Laboratories for Materials Science and Technology (Empa) has developed a 3D-printed battery. Fungi are used as anode and cathode with one releasing electrons during metabolism and the other able to absorb them.

Jan 27, 2025

Products & Services

Solarwatt shows new photovoltaic home storage system The system comes as a stackable battery and can be flexibly configured as an alternating-current (AC) or direct-current (DC) variant. The battery can only be combined with Solarwatt inverters. There is also an emergency power function.

Nov 21, 2024

Flow batteries

Flexbase plans 500 MW redox flow storage project in Switzerland The world's largest redox flow storage facility is to be built at Europe's oldest grid node.

Sep 23, 2024

Gyucheol Lee

Products

Standard Energy unveils vanadium-ion battery with 1% degradation Vanadium offers unique characteristics as a battery material, as it can shed electrons without shifting from its ionic state, ensuring high cycling stability. South Korea’s Standard Energy has developed a battery with just 1% degradation after 20,000 cycles. The company has already completed 10 MWh of projects in its home market and now aims to expand internationally.

Mar 05, 2024

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