en.Wedoany.com Reported - The Public University of Navarre (UPNA) has commissioned a new battery energy storage system (BESS) at its Arrosadia campus, aimed at optimizing on-site solar power consumption and energy management.
The university campus is home to a photovoltaic plant with an installed capacity of 3.44 MW, comprising 7,478 modules and 44 inverters, covering approximately 14,000 square meters of rooftop and ground space. The plant generates around 4 GWh of electricity annually, of which about 75% is consumed on campus, meeting nearly 50% of its electricity demand, with surplus power fed into the grid.
The newly commissioned BESS was installed by Navarre-based company Eosol, utilizing E/Strem CNT batteries manufactured by Basque producer Cegasa Energía. The system consists of six racks, each with a capacity of 365 kWh, for a total capacity of 2.19 MWh, and is equipped with three Ingeteam inverters with a combined nominal power of 819 kW. The entire system is integrated into a container designed by Navarre-based company NTV. The installation of the container's electrical equipment also involved the participation of Alba, another company from Navarre specializing in electrical, low-voltage, and medium-voltage installations.
The energy storage system has expansion capability and can be scaled up to 4.18 MWh in the future. Connected to the campus internal grid, the storage system is primarily responsible for managing surplus solar power, stabilizing loads, and optimizing the self-consumption ratio.
In addition to solar and storage, the project has deployed 40 electric vehicle charging points across the campus, with a total power of 896 kW. Researchers from UPNA's Institute of Smart Cities (ISC) provided technical support for the project.
This initiative is part of UPNA's Green Smart Sustainable Campus plan, with a total project budget of €3.8 million, of which €3.1 million comes from the Recovery and Resilience Mechanism of the European Union's Next Generation EU fund.
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