Italy’s power transmission system operator (TSO) Terna has presented its 2025-2034 Development Plan, with the objective to invest over €23bn in network upgrades within the next 10 year to support Italy’s shift towards renewables. The new 2025-2034 investment goal represents a 10% increase compared to its previous investment plan, expecting to increase the capacity for energy exchange between market zones from 16 GW to 39 GW (+22% compared to previous investment Plan) and to boost cross-border transfer capacity by around 40% compared to current levels. The plan would represent a total reduction of up to 2 MtCO2/year of emissions by 2030, rising to over 12 MtCO2/year by 2040 (+2.5% compared to previous Plan).
The €23bn investment is planned to be used in main infrastructural works such as the 500 kV Tyrrhenian Link to connect Sicily to Campania and Sardinia (to reach conclusion in 2028), the 1 GW Adriatic Link between Abruzzo and Marche (to become operative in 2029), the 380 kV Bolano-Annunziata between Sicily and Calabria and the 380 kV Colunga-Calenzano between the provinces of Bologna and Florence. In addition, the plan includes infrastructural reinforcements scheduled to be completed by 2034, such as the 2.1 GW Milan-Montalto DC power line connecting Lazio and Lombardy, the Central Link the reconstruction of the 220 kV power lines between Umbria and Tuscany, the Adriatic Backbone between Foggia and Forlì and a new 380 kV Montecorvino-Benevento connection.
Terna also plans to build major infrastructure for the purpose of increasing grid security and intrazonal transmission capacity, such as three 380 kV connections in Sicily (Chiaramonte Gulfi-Ciminna, Caracoli-Ciminna and Paternò-Priolo) and one in Lombardy (Milan-Brescia). As for international interconnections, the plan includes as main projects the 400 MW Co.I.3 (modernisation and upgrading of the current interconnection between Sardinia, Corsica and Tuscany), the 600 MW ELMED interconnection project (Italy-Tunisia) and the doubling of existing connection between Italy and Greece (up to 1 GW).
Terna’s investment plan is in line with the Italian goal to increase installed solar and wind power by 65 GW in 2030 and by 94 GW in 2035.