Articles written by Marian Willuhn

View article
Markets & Policy
German government considers cybersecurity measures against Chinese inverters Germany is considering regulatory restrictions on Chinese inverters in energy infrastructure following a parliamentary inquiry, citing cybersecurity and critical infrastructure risks. The government is reviewing options including EU-level measures and expanded investment screening as part of broader de-risking efforts.
Marian Willuhn
Jun 29, 2026
View article
Applications & Installations
German project tests DC-coupled commercial battery storage to cut costs A German pilot project is probing whether DC-coupled battery storage can unlock higher solar buildout behind constrained grid connections by reducing inverter hardware and simplifying system design.
Marian Willuhn
Jun 18, 2026
View article
Markets & Policy
Home batteries earn during negative electricity price spikes When wholesale electricity prices drop below zero during periods of excess renewable generation, as they did over the recent holiday weekend in Europe, flexibility becomes a revenue source.
Marian Willuhn
May 05, 2026
1
View article
Applications & Installations
Tesla launches three-phase Powerwall 3P The system integrates a battery, hybrid inverter, and home energy management system into a single device. It supports the integration of additional appliances, including heat pumps via SG-Ready interfaces. A connection to Tesla’s proprietary wallbox is also planned.
Marian Willuhn
Apr 23, 2026
1
View article
Applications & Installations
Cyber threats for PV: What are cloud platform and software-as-a-service exploitation attacks and how do they work Cloud and SaaS platforms are now central to PV plant operations, but their centralization creates a high-impact cybersecurity risk where a single compromise can expose or disrupt entire fleets of installations. Attackers exploit weaknesses like stolen credentials, insecure APIs, multi-tenant flaws, and platform vulnerabilities, making strong identity controls, secure APIs, and continuous monitoring essential defenses.
Emiliano Bellini, Marian Willuhn
Apr 20, 2026
View article
Applications & Installations
Cyber threats for PV: What are supply chain attacks and how do they work Supply chain attacks compromise PV systems by targeting trusted vendors, software, or hardware components, allowing attackers to infiltrate systems indirectly through legitimate channels. These attacks can disrupt operations, introduce hidden vulnerabilities, and impact multiple assets at once, making vendor security and system validation critical for resilience.
Emiliano Bellini, Marian Willuhn
Apr 17, 2026
View article
Applications & Installations
Cyber threats for PV: What are distributed denial-of-service attacks and how do they work Denial-of-service attacks overwhelm networked systems with massive traffic from compromised devices, disrupting communication and making critical services like PV system monitoring and control unavailable. They can cause operational instability, reduced energy production, and safety risks, requiring layered defenses such as filtering, redundancy, and automated mitigation to maintain system resilience.
Emiliano Bellini, Marian Willuhn
Apr 16, 2026
View article
Applications & Installations
Cyber threats for PV: What are credential compromise attacks and how do they work Credential compromise attacks allow adversaries to gain unauthorized access to PV systems by stealing or guessing valid login credentials, enabling them to manipulate operations, disrupt monitoring, or take control of critical assets. These attacks can lead to operational instability, reduced energy production, and safety risks, making strong authentication and access control essential for system resilience.
Emiliano Bellini, Marian Willuhn
Apr 15, 2026
View article
Applications & Installations
Atmoce debuts microinverter connecting two solar modules Atmoce’s new MI microinverter series connects two PV modules per unit while still providing module-level power optimization.
Marian Willuhn
Apr 14, 2026