SABAG AG develops an integrated energy system for its Rothenburg site
SABAG AG has commissioned the development of an intelligent energy system at its Rothenburg location, marking a strategic step towards greater energy resilience and long‑term operational efficiency. The project is being delivered in collaboration with WWZ AG and NRG Solutions AG and includes the installation of a megawatt‑scale battery storage system as the core asset.
The rollout is structured in phases to ensure stable integration with existing operations. The first phase focuses on SDL marketing, enabling the site to provide grid‑stabilising services. This establishes the control framework and communication pathways required for later expansion. The second phase introduces on‑site photovoltaic generation and charging infrastructure for electric vehicles. Once complete, the system will be configured for self‑consumption optimisation, allowing SABAG AG to use more of its own renewable energy and reduce exposure to grid volatility.
The installation brings together energy storage, grid services and renewable generation in a single coordinated system. By combining these elements, SABAG AG is building a flexible energy platform that supports operational continuity, reduces long‑term energy costs and contributes to regional grid stability.
March 2026 update
Progress on NRG Solutions AG’s BESS construction site at SABAG AG
The steel structure for the battery storage system is in place: an important step on the way to commissioning.
The storage container itself is currently still on its way by sea. In the meantime, the preparatory work continues on the construction site: foundation, infrastructure and integration into the existing energy supply.
The project demonstrates how our Brunstock battery storage system becomes a reality—step by step—from planning to implementation. The next steps will follow as soon as the storage container is on site.
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