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. April 23, 2026 Marian Willuhn Tesla is expanding its offering in the residential energy storage market with a new three-phase system. The Powerwall 3P  system is now available and integrates a battery, hybrid inverter, and home en...

Germany’s Federal Network Agency (Bundesnetzagentur) is set to present a framework for future network fees in May 2026, with industry discussions highlighting how these charges could interact with flexible connection agreements and affect battery energy storage system (BESS) returns. April 1, 2026 Marian Willuhn Image: pv magazine, Marian Willuhn From ESS News One of the key questions on the first day of the Battery Business & Development Forum (BBDF) 2026 in Frankfurt was whether Germany...

Germany’s Fraunhofer Institute for Energy Economics and Energy System Technology IEE (Fraunhofer IEE) says in a new position paper that large-scale battery storage systems in medium-voltage grids should be technically prepared for future grid-forming operation, aiming to bridge the gap between current regulations and potential system stability requirements. February 25, 2026 Marian Willuhn From pv magazine Germany Germany’s Fraunhofer IEE has published a new position paper calling for early...

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. January 29, 2026 Marian Willuhn Sungrow is introducing its large-scale energy storage system, PowerTitan 3.0, to the European market. With the option to connect the battery to a central inverter on the DC side, the company is responding to strong...

Germany has launched a market-based mechanism for procuring instantaneous reserve, allowing inverter-based assets and battery energy storage systems (BESS) to participate for the first time, creating new revenue opportunities while raising questions over long-term profitability and regulatory risk. January 26, 2026 Marian Willuhn Image: Fluence, Lichtblick From ESS News Germany has procured instantaneous reserve through a market-based mechanism since Jan. 22, marking a structural shift in how th...

Prolux Solutions is recalling all Storac home energy storage systems in Germany and exiting vanadium redox flow technology to switch future residential products to lithium iron phosphate batteries. December 8, 2025 Marian Willuhn Image: Prolux Solutions From ESS News Peter van Garsel from Bad Homburg had high expectations for his energy storage technology. Instead of a conventional lithium-ion battery, he deliberately chose a vanadium redox flow system. The technology promised a long lifespan, a...

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. June 10, 2025 Marian Willuhn Image: Green Flexibility From ESS News Energy storage developer Green Flexibility will supply a 40 MW/80 MWh battery energy storage system (BESS) in Germany to the “Feed-in Socket” pilot project being launched by...