Salzburg AG and ADS-TEC Energy Achieve Industry Breakthrough as ChargePost Earns Prequalification for Austria’s Ancillary Services Market
ADS-TEC Energy (NASDAQ: ADSE), a leading global supplier of battery-buffered energy storage and ultra-fast EV charging solutions, has reached a major technological and industry milestone in partnership with Salzburg AG, one of Austria’s primary energy and infrastructure providers. The two companies announced the successful technical prequalification of ADS-TEC Energy’s ChargePost fast charging system for participation in the Austrian ancillary services market—an achievement that marks the first time a compact, battery-integrated fast charging system has been recognized as capable of contributing to grid stability services traditionally dominated by large-scale standalone storage assets.
The prequalification process confirmed that ChargePost is technically capable of delivering short-term power adjustments required to help balance grid frequency. This ability positions ChargePost as part of a new generation of multi-functional fast charging infrastructure—solutions that not only serve electric vehicles (EVs) with high-power charging but also provide flexibility services to support a decentralized, increasingly dynamic energy system. With this accomplishment, ChargePost has been formally integrated into Salzburg AG’s virtual power plant (VPP), where it is now actively contributing to the operator’s grid stability portfolio.
A New Era for Fast Charging Infrastructure
ChargePost is a highly compact, battery-buffered DC fast charging system designed to deliver up to 300 kW of ultra-fast charging power while operating on standard low-voltage grid connections. The system incorporates an integrated battery with 143 to 201 kWh of usable capacity, enabling it to deliver full-power charging even in locations where the local grid infrastructure cannot support high power draw.
However, the system’s capabilities extend far beyond EV charging alone. With intelligent bidirectional storage and an advanced energy management architecture, ChargePost can provide a range of grid-supportive functions—functions typically reserved for large, centralized battery energy storage systems. These include:
- Peak shaving, which reduces strain on the grid by limiting demand spikes.
- Lower grid connection costs, since the system requires only a standard low-voltage connection.
- Stable and consistent charging power, even when multiple vehicles are charging or when the grid is constrained.
- Fast-response power adjustments, enabling participation in frequency containment and other ancillary services.
This multi-layered functionality illustrates the profound potential of battery-integrated fast charging technology to enhance both grid flexibility and the economics of charging networks. It also demonstrates how the energy transition is increasingly being shaped by distributed, modular solutions that serve multiple operational and economic roles simultaneously.
A Milestone Event Celebrating Prequalification Success
The milestone achievement was marked during a joint event held in Salzburg on November 25, attended by representatives from both companies. Thomas Speidel, founder and CEO of ADS-TEC Energy, joined Salzburg AG board members Michael Baminger and Herwig Struber to celebrate ChargePost’s formal entry into the ancillary services market.
During the event, Thomas Speidel emphasized the significance of this development not only for ADS-TEC Energy and Salzburg AG, but for the future of fast charging infrastructure at large.
“To accelerate growth, fast charging has to evolve from being a cost center,” Speidel said. “With intelligent buffering and stable grid behavior, systems like ChargePost open up new flexibility in the operation of charging infrastructure. Our work with Salzburg AG shows how high-power charging and grid stability can go hand in hand.”
His remarks highlight a transformative trend in the EV charging sector: systems must become more than simple energy consumers. Instead, they can act as flexible energy assets that help stabilize the grid, unlock new revenue streams, and reduce operational costs—all while supporting the growing demand for fast and convenient EV charging.
A Strengthened Partnership and Future Expansion
Building on the success of ChargePost’s prequalification, ADS-TEC Energy has also been awarded a tender from Salzburg AG for the deployment of an additional 20 ChargePost units across the region. This significant order underscores Salzburg AG’s commitment to rapidly expanding its battery-supported fast charging network and reflects the strength of the partnership between the two companies.
For Salzburg AG, ChargePost represents a strategic technology that aligns with its long-term goals of advancing clean mobility, strengthening grid resilience, and supporting a decentralized energy future. The addition of 20 new systems will enhance charging availability for EV drivers while offering Salzburg AG a wider network of flexible assets capable of contributing to its VPP.
For ADS-TEC Energy, the order reinforces its leadership in battery-buffered charging and demonstrates the scalability of its technology across different markets and operational environments.
Unlocking New Market Opportunities Through Innovation
One of the most significant implications of ChargePost’s prequalification is the opening of new market opportunities for fast charging systems that combine mobility and grid services in a single, compact footprint. Traditionally, ancillary grid services were provided by large utility-scale storage systems—expensive assets requiring substantial land, extensive grid interconnection infrastructure, and long deployment timelines.
ChargePost challenges this paradigm by demonstrating that:
- Small, distributed systems can supply high-quality ancillary services.
- Fast charging stations can serve as grid resources rather than solely energy consumers.
- Utilities and charging operators can monetize fast charging infrastructure in new ways.
- Battery-buffered architectures can reduce the barriers to deploying fast charging systems in both urban and rural areas.
This capability is particularly important as Europe accelerates its transition toward renewable energy and electrified mobility. The increasing share of intermittent renewable power creates a greater need for balancing services, while the scaling of EV adoption demands more high-power charging stations. Multifunctional systems like ChargePost provide a solution that supports both challenges in a single platform.
A Replicable Model for Other Regions
With prequalification secured and expanded deployment underway, the ADS-TEC Energy and Salzburg AG collaboration presents a model that can be adopted across additional markets in Europe and beyond. As grid operators seek new tools to stabilize increasingly variable and decentralized electricity systems, compact, multi-use technologies such as ChargePost are emerging as pivotal components of the future energy landscape.
The success of this initiative underscores that fast charging infrastructure can move beyond simply powering vehicles—instead becoming an integral part of the energy ecosystem, supporting grid resilience, enhancing system flexibility, and enabling a smarter, more efficient, and more sustainable energy transition.
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