Terna's 2023 development plan for the national electricity grid envisages an investment of over 1.6 billion euros in Sardinia over the next ten years.

The goal is to encourage the integration of renewable sources, improve the level of efficiency, resilience and sustainability of the electricity system. The main novelty is the Hypergrid network , which will exploit direct current energy transmission technologies (HVDC, High Voltage Direct Current) to achieve energy transition and security objectives. In addition to the development measures already envisaged, Terna has planned five new electricity backbones, functional to the integration of renewable capacity, for a total value of approximately 11 billion euro. Among these, the Sardinian backbone, the project that will make it possible to maximize the integration of renewable energy and strengthen the island's electricity grid, channeling the production of regional energy sources from Sardinia and southern Italy to the northern loading centers of Italy.

The intervention consists of two works: the first, the Sardinian Link , will allow the reconstruction of the Sardinian 220 kV grid from Codrongianos to Sulcis and Selargius. The work will be completed by 2028. The second, however, the Hvdc Sapei2 is a new direct current power line from Sardinia to the Continent , which will flank the existing Sapei connection and will work in synergy with the already planned Tyrrhenian Link, for a sort of Tyrrhenian network ring. The 2023 plan also confirms the Sa.Co.I.3 project, connection between the electrical systems of Sardinia, Corsica and the Italian peninsula and the installation of a synchronous compensator in the Codrongianos electrical station. the new 150kV "Santa Teresa - Tempio - Buddusò" power line, approximately 90 km long, which will make the electricity system in northern Sardinia safer and more efficient.

(Unioneonline/F)