ADS-TEC Energy’s ChargePost fast-charging system has received technical prequalification to participate in Austria’s ancillary services market, clearing the way for its use in both ultra-fast electric vehicle charging and grid stabilisation services, the company said. Utility operator Salzburg AG has already integrated the battery-based system into its virtual power plant to support frequency regulation while serving EV users.
The prequalification confirms that the ChargePost system can deliver short-term power adjustments required for stabilising grid frequency, enabling it to function as both charging infrastructure and a grid asset. Salzburg AG said the integration allows the system to buffer electricity from the grid and release it during periods of peak demand or frequency deviation, combining energy storage with public fast-charging operations.
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Each ChargePost unit delivers up to 300 kilowatts of ultra-fast DC charging and is equipped with 201 kilowatt-hours of onboard battery storage. The system is designed to operate on standard low-voltage grids, allowing deployment in areas with limited grid capacity. In addition to bidirectional energy storage, the system supports peak shaving to reduce grid connection costs and maintain full charging performance even during local grid constraints.
Following the successful prequalification, Salzburg AG has secured a tender to deploy 20 additional ChargePost systems. The expanded rollout is expected to strengthen the utility’s virtual power plant capacity while supporting the growth of public fast-charging infrastructure across the region.
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Thomas Speidel, chief executive of ADS-TEC Energy, said the development marked a shift in how charging infrastructure can be utilised. “Fast charging must evolve beyond a cost centre to accelerate growth,” Speidel said, adding that intelligent buffering creates new flexibility for infrastructure operations and allows high-power charging to coexist with grid stability requirements.
Ancillary services have traditionally been provided by large-scale stationary battery systems. The approval of a compact, battery-integrated charging system for grid services is seen by the companies as opening new revenue opportunities for operators and offering a model that could be replicated in other regions facing grid capacity limitations.