Utility launches tender for integrated battery storage project
A utility is procuring a battery energy storage system to work with solar and hydropower, reflecting wider moves to pair storage with renewables.
A utility is procuring a battery energy storage system to work with solar and hydropower, reflecting wider moves to pair storage with renewables.
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In June 2026, Stadtwerke Schwaz GmbH launched procurement for a new battery storage system at its Kraken 11 site in Schwaz. The Battery Storage Project is designed to operate alongside an existing photovoltaic installation and a drinking water power plant. The notice sets out a clear aim: to improve energy efficiency and strengthen reliability by coordinating these assets. It is a concise but telling example of how utilities are now treating battery storage as a core part of local energy systems rather than a bolt-on.
On 12th June 2026, Stadtwerke Schwaz GmbH published a contract notice for a battery storage system at the Kraken 11 site in Schwaz. The description is brief but specific: the system is to “work alongside a photovoltaic system and a drinking water power plant” with the purpose of enhancing “energy efficiency and reliability”.
That framing puts the battery at the centre of a three-part local system:
Unlike some larger grid-facing schemes, the Schwaz project is described in terms of local performance rather than market participation. The focus on efficiency suggests a drive to make fuller use of on-site renewable generation, while the emphasis on reliability underlines the role of storage in keeping supply stable when solar output fluctuates or water flows change.
The notice does not give technical details such as capacity, duration or operating mode. Even so, it places Stadtwerke Schwaz firmly within a broader European pattern: pairing battery energy storage systems (BESS) with renewables and other distributed assets to get more controllable, resilient local power.
Across Europe, public bodies are increasingly bundling rooftop or on-site solar with storage, turning buildings into small power plants that can better manage their own consumption.
In January 2026, Stadt Mönchengladbach put out a contract for the construction of a photovoltaic system with battery storage at the Secondary School Wickrath. The scheme illustrates how storage is now being considered as standard alongside solar on education estates.
Also in January 2026, Ekonomická univerzita v Bratislave launched a contract for the construction of a photovoltaic power source with battery storage at the EU Student House in Bratislava, explicitly “to supply and store electrical energy for the facility”. Here, as in Schwaz, storage is framed as a tool to capture on-site generation and shape it to building needs.
Healthcare and municipal buildings are following the same path. In February 2026, MIEJSKIE CENTRUM MEDYCZNE "GÓRNA" W ŁODZI tendered for a photovoltaic microinstallation with an energy storage battery for the MCM Górna Clinic in Łódź, with a clear requirement that all components be brand new. Municipalities such as Gmina Jodłownik, which in January 2026 sought the designing, permitting and installing energy storage systems with hybrid inverters for residential and public utility buildings, are extending this approach across their estates.
Further examples continue through 2026. In April 2026, Město Mohelnice went to market for photovoltaic systems with batteries on the roofs of the cultural house and town hall, while in May 2026 Gmina Dobromierz sought hybrid photovoltaic micro-installations and energy storage systems for various municipal public utility buildings, with explicit integration into the national energy market. On 11th June 2026, Powiat Kraśnicki followed with a notice for delivering, installing and commissioning photovoltaic systems and energy storage in public utility buildings.
Within this context, the Schwaz scheme stands out for the way it connects storage not only to solar but also to a drinking water power plant. Yet its objectives – using local generation more efficiently and keeping supply reliable at site level – mirror the priorities seen in schools, clinics and municipal buildings elsewhere.
Alongside building-scale projects, utilities are procuring larger batteries that connect directly to distribution networks and energy markets. These schemes show another side of the storage agenda: flexibility and commercial optimisation.
In January 2026, Versorgungsbetriebe Bordesholm GmbH issued a contract notice for delivery, installation, commissioning and optional maintenance of battery containers for a battery storage system, with the clear aim of “optimizing electricity marketing from a nearby PV ground-mounted park”. Here, storage is a commercial asset as much as a technical one.
In February 2026, Städtische Werke AG, via the procurement office of Städtische Werke Netz + Service GmbH, sought the delivery, installation and maintenance of a large battery storage system at the Fieseler Foundation in Kassel. That system is explicitly designed for “flexible marketing in various energy markets” and will be connected to the local distribution network.
Larger capacity is also coming into view. A Prior Information Notice published in May 2026 shows Liechtensteinische Kraftwerke preparing the procurement of a battery storage system with a capacity of at least 25 MW / 50 MWh for delivery to Balzers, with a building permit already secured and the supplier responsible for delivery and commissioning. In June 2026, Stadtwerke Duisburg AG published a notice for the construction and maintenance of a battery storage system with varying capacities at the Rheinkai Nord site, further underlining the growth of utility-scale batteries.
Technical and regulatory expectations are also rising. In March 2026, Kotkan Julkiset Kiinteistöt Oy in Finland issued a notice for the implementation of an energy storage battery system for its properties, requiring “aggregator independence” and compliance with transmission system operator Fingrid’s technical standards. And in May 2026, WVW Wärmeversorgung Wendlingen am Neckar GmbH sought the installation of a ground-mounted photovoltaic system, including a transformer station and a battery storage system.
Compared with these grid-oriented projects, the Schwaz scheme is more tightly bound to specific local assets. Its stated purpose is not energy trading but improving how a defined site uses and secures its own generation. Yet the same building blocks are present: batteries, renewables and system integration requirements that suppliers across Europe are increasingly familiar with.
Battery storage is also being procured for resilience and transport applications, broadening the range of sites where similar technologies will be deployed.
In April 2026, the Ministry of Defence tendered for a Battery Energy Storage system at Knook Camp, designed to utilise on-site solar PV energy, enhance energy resilience and support its Net Zero target. In March 2026, BMLV/Direktion 7 - Infrastruktur issued a notice for the delivery and installation of a stationary battery storage system capable of both grid-parallel and off-grid operation, underlining the importance of backup capability for defence sites.
Other defence-related bodies are combining storage with wider building upgrades. In February 2026, Staatl. Hochbauamt Ulm advertised the installation of a PV system with 419 modules and a 180 kWh battery storage system at the Army Music Corps, including maintenance services. In April 2026, Agencja Mienia Wojskowego in Krakow went to market for the supply and installation of a photovoltaic system with energy storage at its headquarters building, including roof construction works and lightning protection modernisation.
Transport and community projects are taking a similar route. In April 2026, RVK | Regionalverkehr Köln GmbH sought a grid-connected photovoltaic system with a battery storage system as part of a new depot for hydrogen fuel cell and battery-electric buses in Bensberg. In May 2026, Gmina Miasto Mrągowo tendered for the delivery and installation of photovoltaic panels, a 1000 kWh energy storage system and charging stations for electric buses. And in January 2026, free heating s.r.o. launched a contract for the supply of 11 electric vehicle charging stations and a battery storage system, including installation, transportation, technical documentation and expert supervision.
Even smaller community organisations are entering the storage market. In March 2026, Skerries Harps GAA and Camogie Club tendered for a battery bank with 400kWh capacity and a 100kW hybrid inverter as part of a sustainable energy development project. In May 2026, Hochschule Reutlingen sought suppliers for the planning, construction and integration of a battery-electric storage system and hydrogen CHP for a real laboratory, supporting hydrogen production and testing.
These examples, taken together, show storage being used to back up critical facilities, electrify transport depots, support research infrastructure and cut running costs for community clubs. The Schwaz project, with its combination of solar, a drinking water power plant and a new battery system, fits into this widening catalogue of use cases where resilience and efficient use of local generation are central.
For Stadtwerke Schwaz GmbH, the next steps will be to select a supplier and define the detailed technical and operational parameters of the Kraken 11 battery system, including how it will coordinate with the photovoltaic installation and the drinking water power plant. Across Europe, recent notices suggest buyers increasingly want turnkey packages covering design or permitting, delivery, installation, commissioning and often maintenance, as seen in projects from Gmina Jodłownik to Versorgungsbetriebe Bordesholm and Staatl. Hochbauamt Ulm.
As more tenders follow the pattern set in June 2026, suppliers can expect storage to be specified less as a stand-alone asset and more as part of integrated local energy systems – exactly the role envisaged for the new battery at Kraken 11 in Schwaz.
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