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

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Fraunhofer IEE calls for “grid-forming readiness” in distribution networks and BESS A position paper from the Fraunhofer IEE proposes preparing large battery storage systems in the medium-voltage grid for grid-forming functions at an early stage. The "Grid-Forming Readiness" concept aims to close the regulatory gap between current planning and operation and future, as yet unknown, requirements and demands for grid-forming functions.
Marian Willuhn
Feb 26, 2026
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Varta unveils residential battery with AI-driven energy management The Germany battery manufacturer is expanding its portfolio with a modularly scalable LFP storage solution featuring a new energy management system. The new product comes with the company’s proprietary “Varta.iq” software, which is designed to detect consumption anomalies, integrate dynamic electricity tariffs, and enable bidirectional charging.
Marian Willuhn
Feb 11, 2026
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Made in Europe: Sungrow builds its first European factory in Poland Sungrow plans a €230 million ($274 million) investment in its first European manufacturing plant in Wałbrzych, Lower Silesia, to produce inverters and battery storage systems.
Marian Willuhn
Feb 05, 2026
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SMA releases new storage system for C&I solar German inverter and battery manufacturer SMA Solar Technology AG has unveiled a modular lithium iron phosphate battery system for commercial and industrial applications, with capacities ranging from 89 kWh to 197 kWh and integrated cybersecurity features.
Marian Willuhn
Feb 05, 2026
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Sungrow brings grid-forming PowerTitan 3.0 storage system to Europe Sungrow is introducing its large-scale energy storage system, PowerTitan 3.0, to Europe, featuring grid-forming capability, next-generation battery cells, DC coupling for co-located solar projects, and streamlined commissioning to accelerate deployment.
Marian Willuhn
Jan 30, 2026
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New market for instantaneous reserve launched in Germany, new opportunities for storage? A new market for instantaneous reserve has been launched in Germany. For the first time, inverter based assets and battery energy storage systems can participate in the market based procurement of this system service. The new market design opens up additional revenue potential but also raises questions about actual profitability and regulatory risks.
Marian Willuhn
Jan 26, 2026
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Prolux Solutions recalls vanadium redox flow home storage systems and switches to LFP Germany's Prolux Solutions is recalling all its Storac home energy storage systems and phasing out vanadium redox flow technology. The company will instead rely on lithium iron phosphate in the future.
Marian Willuhn
Dec 05, 2025
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German regulator drafts plan for energy storage systems to charge from the grid without losing subsidy The Federal Network Agency has presented a draft proposal for the market integration of storage systems and electric vehicle (EV) charging points. Under the plan, battery storage systems and EVs would no longer have to be powered exclusively by renewable electricity to benefit from Erneuerbare-Energien-Gesetz (EEG) subsidies.
Marian Willuhn
Sep 23, 2025
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SMA receives first certificate for grid-forming battery inverter with instantaneous reserve SMA claims to be the first company in Germany to receive confirmation of the technology. It paves the way for use in projects that want to participate in the new instantaneous reserve market, due to start in 2026.
Marian Willuhn
Sep 10, 2025

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