The existing Vis Solar Power Plant (SPP) has been upgraded with a Battery Energy Storage System (BESS) and integrated into a microgrid. This solution enables surplus energy generated from renewable sources to be stored and utilised during periods of increased demand or whenever additional grid support is required.

The value of the project is particularly evident in an island environment, where electricity consumption rises significantly during the tourist season, while lower-demand periods may result in excess solar generation. Energy storage allows these fluctuations to be effectively managed through peak shaving, balancing services, consumption optimisation and grid stability support.

For the distribution system operator, the solution provides greater network management flexibility, reduced peak loads, enhanced balancing capabilities and more efficient integration of renewable energy sources. As a result, local grid stability is improved, the need for additional infrastructure interventions is reduced and the foundation is established for more advanced energy management across island communities.

End users benefit from a more reliable power supply, improved voltage quality and increased system resilience in exceptional operating conditions. At the same time, the project contributes to the sustainable development of the island by enabling more efficient use of locally generated clean energy and delivering greater value to the local community.

The Vis project demonstrates how the combination of renewable power generation, energy storage and advanced control systems can deliver a measurable step towards more energy-independent, resilient and sustainable communities.