GSL ENERGY's 5MWh Battery Storage Project Advances in Poland with On-Site Technical Support

GSL ENERGY's 5MWh grid-connected battery energy storage project in Poland has reached a new construction milestone. All project equipment has arrived on site, and the customer is carrying out civil works and equipment installation. GSL ENERGY's technical team is providing on-site support, working alongside the customer and installation team to advance implementation.

The project combines approximately 5MWh of battery energy storage, a 2.5MW power conversion system (PCS), and a 2.2MW solar PV system. Designed for grid-connected operation, it will primarily support peak shaving and off-peak charging, using scheduled battery charging and discharging to optimise when electricity is drawn from the grid.

Equipment Delivered as Civil Works and Installation Progress

With equipment delivery complete, the project is now in the civil works and installation phase.

The customer is proceeding with construction activities according to the project schedule. GSL ENERGY's technical team is coordinating with the customer and installers to address equipment installation requirements, system interfaces, and site-specific technical questions, helping prepare for electrical connections, system commissioning, and grid-connected operation.

Close coordination between equipment supply, site construction, and technical support is essential to moving the project towards completion.

5MWh Battery Storage Designed for Grid-Connected Peak Shaving

The project's primary application is peak shaving and off-peak charging. Once operational, its energy management system (EMS) will coordinate battery charging and discharging according to site demand, electricity tariff periods, and grid connection conditions.

The system will store electricity during off-peak periods or other suitable charging windows, then discharge during peak periods to reduce the need for electricity purchases from the grid. This operating strategy will support load management and electricity cost optimisation.

The 5MWh battery system provides energy storage capacity, while the 2.5MW PCS manages bidirectional power conversion between the batteries and the AC side, enabling the system to execute its charging and discharging strategy.

Actual operating schedules and cost savings will depend on the applicable tariff structure, site load profile, system efficiency, and operating strategy.

Integrating 2.2MW of Solar PV with Battery Storage

The project also includes a 2.2MW solar PV system, bringing solar generation and battery storage under coordinated energy management.

Subject to site demand and grid connection requirements, the battery system can schedule charging and discharging based on solar output, battery status, and electricity consumption. This allows a portion of solar-generated electricity to be stored for use at another time, increasing flexibility in energy allocation.

Coordinated operation of the solar PV system, battery storage, and grid connection will support the project's peak-shaving objectives and help optimise electricity use at the site.

On-Site Technical Support Throughout Installation

Delivering a large-scale battery storage project requires careful coordination between equipment specifications and actual site conditions.

GSL ENERGY's technical team is supporting the customer on site, helping align installation activities with product requirements, addressing technical questions during implementation, and preparing for the subsequent commissioning phase.

Progress on the Poland project demonstrates GSL ENERGY's capabilities in containerised battery storage delivery, solar-plus-storage integration, and on-site technical support.

Further Construction Updates to Follow

The project is currently in the civil works and installation phase and has not yet been commissioned for grid-connected operation.

GSL ENERGY will continue to share updates on equipment installation, system commissioning, and the start of grid-connected operation, documenting the development of this 5MWh battery storage project with 2.5MW PCS capacity and 2.2MW of solar PV.

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