Italy’s Grid Operator Terna to Invest €23 Billion to Boost Renewable Capacity

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- €23 billion invested over 10 years to modernize Italy’s grid, a 10% increase from previous plans.
- Grid upgrades to triple energy exchange capacity, significantly enhancing renewable energy integration.
- Anticipated annual CO₂ emissions reduction of 2,000 kt by 2030, reaching 12,100 kt by 2040.
Terna unveiled its 2025-2034 Development Plan today, committing over €23 billion to transform Italy’s electricity infrastructure, aligning with national and EU decarbonization and energy security targets.
The ambitious infrastructure plan, presented by Terna CEO Giuseppina Di Foggia, includes major projects like the Tyrrhenian Link, Adriatic Link, Sardinia-Corsica-Tuscany interconnection, and the Italy-Tunisia energy bridge.
“Investing in planning, modernising and digitising electricity grids will be essential to cope with the growing demand for energy and the integration of renewable sources,” said Giuseppina Di Foggia, Terna’s CEO. “Our goal is to ensure the country has a reliable, resilient and sustainable system.“

Terna’s investments address the rising demand for renewable energy connections, including storage facilities and data centers, which have recently seen accelerated growth. The company adopted a new Efficient Territorial Planning model to resolve grid saturation, significantly cutting administrative delays and costs.
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“An adequate and interconnected transmission grid, along with current legislative measures and incentives, is crucial to achieving the 2030 targets set by the National Energy and Climate Plan,” Di Foggia added.
Key Projects Underway:
- Tyrrhenian Link: A €3.7 billion HVDC submarine cable connecting Sicily, Sardinia, and Campania, boosting renewable energy integration by 2028.
- Adriatic Link: A 1,000 MW connection between Abruzzo and Marche operational by 2029, enhancing coastal grid resilience.
- Bolano-Annunziata Line: 380 kV submarine line improving Sicily-mainland energy exchange capacity to 2,000 MW.
Future projects beyond 2030 include the Milan-Montalto HVDC line, the Central Link in Tuscany and Umbria, and the Adriatic Backbone connecting Foggia to Forlì.
These interventions will increase market-zone energy exchange capacity from the current 16 GW to approximately 39 GW and boost cross-border transfer capacity by 40%.
“Requests for renewable plant connections and data centres are continuously increasing,” Di Foggia emphasized, highlighting the necessity for Terna’s modernized infrastructure to attract international investors.
Regulatory simplifications introduced by ARERA and recent Ministry decrees are expected to expedite approvals, saving significant project lead time and accelerating grid modernization.
Terna’s grid development will be further supported by market-driven tools such as Capacity Market and MACSE, Italy’s innovative electrical storage capacity procurement mechanism.
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