EXECUTIVE SUMMARY
Italian solar plants Rinaldone and Camposcala are being equipped with two battery energy storage systems totalling 54 MW/216 MWh. BNZ has started construction of the four-hour systems in Lazio, with Grupotec and Elecnor responsible for the respective projects. Both installations are targeted to begin operations by the end of 2026.
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BNZ, an independent power producer (IPP) developing and managing multi-technology renewable energy projects, has started construction of two battery energy storage systems (BESS) at its Rinaldone and Camposcala photovoltaic plants in Lazio, Italy. Announced on 5 November 2026, the projects will add a combined 54 MW/216 MWh of battery storage capacity to the company's existing solar installations.
The Rinaldone solar plant has an installed capacity of 45 MWp, while Camposcala has 53 MW. Each location will receive a 27 MW/108 MWh battery system with a storage duration of four hours. The batteries will store electricity during periods of peak solar generation and supply it to the grid during hours of higher demand.
BNZ has appointed Grupotec to construct the Rinaldone storage system, while Elecnor is responsible for the Camposcala installation. Both projects are scheduled to enter operation by the end of 2026.
According to BNZ CEO Luis Selva, the start of construction marks an important step in strengthening the company's position in the Italian energy market. He identified battery integration as a central part of BNZ's multi-technology strategy, allowing the company to improve the use of its renewable electricity generation while providing greater reliability and flexibility to the power grid.
The storage systems are expected to support the resilience of the local electricity network by helping balance electricity supply and demand. BNZ stated that the installations will improve renewable energy integration, reduce restrictions on clean electricity generation and contribute to overall grid stability.
BNZ estimates that each plant will avoid between 10,000 and 15,000 tonnes of CO2 emissions annually by optimising solar production and reducing reliance on more carbon-intensive technologies. The company has also introduced natural vegetation management practices at its facilities, including the use of grazing animals.
The projects involve local companies and resources, supporting regional economic activity and employment. BNZ also participates in community initiatives, including the Maremma d'Amare Fair in Montalto di Castro and Viterbo Clean Up.
The two installations form part of BNZ's wider storage development programme in Italy. The company plans to install 350 MW of battery storage power across eight projects located in areas with high solar irradiation.
Across Europe, BNZ has a renewable energy portfolio exceeding 2.7 GW, including 850 MW of battery energy storage systems. Its development strategy focuses on combining renewable generation with storage, digitalisation and infrastructure optimisation to improve operational efficiency and support electricity system requirements.