MACSE 2029: Terna prepares the second MACSE auction, with 16 GWh of new storage capacity expected to be procured for delivery in 2029

01 Jun 26

Following the approval of the national storage capacity requirement by the Ministry of Environment and Energy Security (MASE) in May 2026, Terna has progressively updated the regulatory and operational documentation for market participants, with the auction scheduled for 24 November 2026.

This clearly signals the growing strategic importance of storage in achieving the 2030 energy targets: the mechanism is designed to gradually cover the additional storage capacity required by the Italian power system.

The key dates to keep on the radar are:

07-27 July 2026Admission request submission
By 10 September 2026Qualification data and documentation submission
By October 2026Pre-auction guarantee setup
24 November 2026, 10:00 AMAuction date

Qualified, ready-to-build and bankable assets will be essential. At Vector Renewables, we support our clients with the technical expertise needed throughout every phase of the process.