In a significant development for Germany’s energy storage sector, suena energy has taken over the commercial optimisation of three large-scale battery storage assets operated by Münch Energie in Saxony-Anhalt.
The combined capacity of the assets stands at approximately 300 MWh, making them one of the largest contiguous battery storage clusters currently in operation in Germany. Notably, one of the projects is considered the country’s largest grid-connected co-located battery storage system. An expansion of the cluster to around 800 MWh is planned later this year.
Each of the three assets has a rated output of 49.5 MW and a storage capacity of 101 MWh, bringing the total output to approximately 150 MW. The portfolio comprises one co-located storage system integrated with a photovoltaic (PV) plant and two stand-alone battery storage units.
The co-located asset, operational since February 2026, shares its grid connection with a 60 MWp solar PV installation. With a combined grid connection capacity of around 50 MW, it represents Germany’s largest battery storage system to share infrastructure with a solar plant while also being permitted to draw electricity from the grid. The model demonstrates efficient utilisation of limited grid capacity and is being viewed as a benchmark for future storage developments.
However, shared grid usage introduces operational complexity, as solar generation must be factored into storage dispatch strategies. suena energy is leveraging proprietary algorithms to optimise asset performance under these conditions.
The two stand-alone storage systems, commissioned in early March 2026, are designed to draw power from the grid, store it, and discharge it as required. These assets can respond within seconds to market fluctuations, enabling them to balance supply and demand, mitigate price volatility, and support grid stability while enhancing renewable energy integration.
Industry experts highlight that commercial optimisation is becoming a critical factor in maximising the value of battery storage assets, translating technical flexibility into economic and system-wide benefits.
According to Lennard Wilkening, the project represents a new scale for Germany’s storage market, emphasising that the value of such assets lies in their ability to strengthen renewable integration, grid stability, and economic efficiency.
Echoing this, Mario Münch noted that the collaboration combines technical expertise with a strong understanding of project-specific requirements, highlighting the importance of strategic partnerships in complex energy systems.
The partnership underscores a broader shift in the energy sector, where the focus is moving beyond asset construction to intelligent integration across the power market. As renewable energy capacity continues to grow, large-scale battery storage clusters and advanced optimisation strategies are expected to play a central role in ensuring a flexible, reliable, and cost-effective energy system.
