Green Flexibility has been selected to supply an 80 MWh battery energy storage system (BESS) as part of a pilot project led by German grid operators LEW Verteilnetz and Bayernwerk. The initiative, dubbed the "Feed-in Socket", aims to integrate renewable energy more efficiently into the power grid through grid-neutral operation.

The Balzhausen-based BESS, with a power capacity of 40 MW, is scheduled for commissioning in fall 2025. The €40 million system will operate in a way that minimizes demand on grid infrastructure during periods of high solar and wind output, helping to optimize transformer and network utilization.

Out of 20 project proposals totaling 445 MW, only seven were selected. In addition to Green Flexibility, two smaller BESS projects (21 MW combined), a 22 MW wind farm, and 44 MW of solar PV (across three sites) will participate in the pilot.

Christoph Lienert, co-founder and managing director of Green Flexibility, said the project demonstrates the company's commitment to supporting the energy transition with grid-friendly innovations. Technical details of the battery's operational model, which goes beyond responding to price signals, are expected to be released later in collaboration with the grid operators.

The pilot could offer a scalable solution for better renewable integration without overloading existing infrastructure, addressing a key bottleneck in Germany's clean energy rollout.

Source: ess-news.com