ADS-TEC Energy wins contract for SWLB municipal battery storage project in Germany

Key Terms

battery energy storage system technical

A battery energy storage system is a device that stores electricity for later use, much like a rechargeable battery for a phone or laptop. It allows energy generated during times of low demand or from renewable sources to be saved and released when needed, helping to balance supply and demand. For investors, it represents a way to support reliable energy flow and capitalize on the increasing demand for flexible, clean power solutions.

ancillary service markets financial

Ancillary service markets are the buying and selling of support services that keep a larger system—most commonly the electricity grid—stable and reliable, such as balancing supply and demand, frequency control, and backup reserves. Investors care because these markets create steady revenue streams for providers of flexibility (like battery storage, generators, or demand-response programs) and affect the economic value of assets that help prevent outages, similar to how insurance or maintenance contracts add predictable income and reduce risk for a core business.

decentralized storage technical

Decentralized storage is a method of keeping digital files on a network of many independent computers instead of on a single company’s servers, similar to spreading copies of important documents among many trusted friends rather than leaving them in one safe. For investors it matters because it can reduce risk from a single provider failing, improve data resilience and privacy, and create new business models and tokens that can affect a company’s value and regulatory profile.

combined heat and power plant technical

A combined heat and power plant produces electricity and captures the waste heat from that process to provide useful heating or steam for buildings or industrial processes, like using both the meat and the broth when you cook a stew. For investors, CHP plants matter because they boost overall energy efficiency, lower operating costs and emissions compared with separate power and heat sources, and can improve profitability, energy resilience and compliance with environmental rules.

medium-voltage grid connection technical

A medium-voltage grid connection is the physical and regulatory link that ties a power user or generator—such as a factory, data center, or power plant—to the portion of the electrical network that carries electricity at mid-range voltages (higher than household lines but lower than long-distance transmission). For investors it matters because the type of connection determines how much power can be delivered or exported, the cost and time for upgrades or permits, and ongoing grid charges and reliability risk—similar to whether a business connects to a local street or a multi-lane arterial road when planning logistics and capacity.

• German municipal utility, SWLB, has selected ADS-TEC Energy’s 5 MWh battery energy storage system for integration with its biomass power plant.
• The BESS5000 system provides grid flexibility and enables participation in energy and ancillary service markets
• This project will act as a reference for decentralized storage in the regulated European distribution grids market.
• ADS-TEC Energy battery storage systems deliver recurring revenues from grid services and allow participation in energy markets

NÜRTINGEN, Germany & LUDWIGSBURG, Germany--(BUSINESS WIRE)-- ADS-TEC Energy PLC (NASDAQ: ADSE) today announced it has won a contract from Stadtwerke Ludwigsburg-Kornwestheim (SWLB), a municipal utility in southern Germany, to supply a battery energy storage system for its wood-fired combined heat and power plant. SWLB chose ADS-TEC Energy’s BESS5000 system with a capacity of five megawatt-hours (MWh) for a project scheduled for construction in 2026.

ADS-TEC Energy's BESS5000 battery energy storage system selected for SWLB's power plant in Germany

The BESS5000 modular storage system is designed to meet the requirements of municipal utilities with regulated distribution grids. For the SWLB deployment, ADS-TEC Energy will manage technical planning, securing authorizations, and the integration of IT and cybersecurity in partnership with the engineering firm SCHNEPF Group, based in Nagold, Germany.

Decentralized storage as a scalable infrastructure model

Using ADS-TEC Energy battery system. SWLB will be able to smooth peak loads, store surplus renewable electricity, and ease pressure on the local grid. By locating the system right next to the biomass power plant, the solution’s flexible setup benefits from proximity to the energy generation while being operated independently via the medium-voltage grid connection.

Decentralized storage projects make it easier for distribution grids to accommodate renewable energy, while reducing congestion, and improving grid stability. At the same time, they allow customers to participate in energy and ancillary service markets, creating new recurring revenues.

Michael Rudloff, COO of ADS-TEC Energy, commented: “SWLB’s project demonstrates how municipal infrastructure businesses can benefit from the integration of decentralized battery storage. Our robust technology supports grid requirements and allows participation in energy markets. Our modular battery solutions are built for these applications with clearly defined technical and operational interfaces, transparent control logic and a secure, scalable operating concept. We look forward to successfully implementing this project together with SWLB and the SCHNEPF Group.”

Municipal utilities as proof points for repeatable growth

For ADS-TEC Energy, the project represents another step as it expands its footprint in the European market for decentralized battery storage. Municipal utilities provide a stable and replicable application environment for storage systems that combine grid services with market participation. SWLB’s installation demonstrates how decentralized battery storage systems can be rolled out across multiple sites, supporting grid resilience while enabling long-term, predictable revenue streams linked to infrastructure operation.

About ADS-TEC Energy

With more than a decade of experience in lithium-ion technologies, ADS-TEC Energy develops and manufactures battery storage solutions and ultra-fast charging systems, including advanced energy management software. ADS-TEC Energy’s battery-buffered fast-charging technology enables electric vehicles to charge at ultra-high power levels even on weak grids, all within an exceptionally compact design.

Headquartered in Nürtingen, Baden-Württemberg, the company was nominated by the President of Germany for the German Future Prize and was inducted into the “Circle of Excellence” in 2022. The outstanding quality and performance of ADS-TEC Energy’s systems are the result of extensive investment in in-house development and high levels of vertical integration. With its advanced technology platforms, ADS-TEC Energy is a trusted partner for automotive manufacturers, energy providers, and charging infrastructure operators worldwide.

For more information, visit: www.ads-tec-energy.com

View source version on businesswire.com: https://www.businesswire.com/news/home/20251216312829/en/

Media Contact:

For ADS-TEC Energy:

Katharina Decken

Marketing & Communications

press@ads-tec-energy.com



For ADS-TEC Energy United States:

Breakaway Communications for ADS-TEC Energy

ads-tecpr@breakawaycom.com

Source: ADS-TEC Energy