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Italy authorized 24 battery storage projects with a combined power capacity of 3.7 GW in October, according to Energy Storage, compared with 3.2 GW across 26 projects in September. Puglia accounted for 2,237 MW, or 60.6% of October’s authorized capacity. Authorization does not establish that projects have begun construction or will be completed on the schedules reported.
Italy authorized 24 battery energy storage projects totaling 3.7 GW in October, exceeding the 3.2 GW approved in September, according to Energy Storage. The approvals, issued by the Ministry of Environment and Energy Security, add projects across the country, with the southern region of Puglia accounting for 2,237 MW, or 60.6% of October’s authorized capacity.
The ministry issued five new single authorizations on October 30, covering 722.5 MW of battery power capacity. The largest was the 434.5 MW Castra Energiae Umbriae project in Castel Giorgio, in the province of Terni. Rinascita Botticelli Srl, a subsidiary of Rinascita Holding, received approval under Decree 322/2026. The project is planned to include 340 battery containers with a combined storage capacity of about 1.5 GWh, alongside 2,040 inverters rated at 213 kW each. Construction is expected to take about 17 months.
The other four projects in the October 30 batch are in Puglia: Nuveen’s 103 MW Valle del Forno 2 in Castelluccio dei Sauri; a 50 MW project by Reden subsidiary Electricity Time Shifting 4 Srl in San Severo; a 35 MW project by GR Value subsidiary GRV BESS Srl in Stornara; and the 100 MW Bari Loseto project by RNE IT SPV 41 Srl. Reported construction periods are 24 months for the Nuveen and Reden projects and nine months for the GR Value development.
The monthly total also includes approvals for projects by developers such as Engie, ACL Energy and Energy Total Capital. Engie received authorization for a combined 262.4 MW across projects in Leinì, in the province of Turin, and in Amorosi and Puglianello, in the province of Benevento. ACL Energy received approvals totaling 366 MW for projects in Bari Ovest and Lucera. These figures describe approved project power capacity, not storage energy capacity; the source says relatively few authorization decrees specify energy capacity.
Puglia Leads October Approvals
The approvals show a larger volume of authorized capacity in October than in September, even though the number of projects fell from 26 to 24. Energy Storage reports that October added about 440 MW more capacity than the previous month. The average project size rose to roughly 154 MW from 125 MW, although the outlet says that average is inflated by a large project in Brindisi. The median project size remained effectively unchanged at about 100 MW.
Puglia’s share is especially substantial: the region received 12 of the 24 approvals, totaling approximately 2,237 MW. Foggia province alone had six projects totaling about 752 MW. Energy Storage says Puglia would still lead the regional totals with more than 1.2 GW even if the large Brindisi project were excluded.
Battery storage can help shift electricity across time, but authorization alone does not show how much capacity will be built, when it will connect to the grid, or how much energy it will store. The distinction matters because the reported GW figures measure power capacity, while GWh measures the amount of energy a system can hold. Those figures are not interchangeable, and storage duration varies among projects where energy capacity is disclosed.
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From September to October
September saw 26 Italian storage projects authorized with a combined capacity of 3.2 GW, according to the report. October’s 24 projects brought the monthly total to 3.7 GW. The monthly comparison therefore reflects fewer approvals but more aggregate power capacity, rather than a rise in the number of projects.
October’s authorized developments are spread beyond Puglia. The report identifies a 435 MW project in Castel Giorgio, Umbria, and a combined 305 MW across projects in Sardinia’s Macchiareddu, Cagliari, and Borore areas. Northern Italy accounted for about 420 MW across five projects in Piedmont, Lombardy, Friuli Venezia Giulia and Emilia-Romagna. It also reports that projects in Casei Gerola and Castelnuovo Scrivia are to connect to the same Terna substation.
Project scale and planned timelines vary. Most approved developments are under 200 MW, and 12 projects are no larger than 100 MW. The smallest listed is a 25 MW project by Myt Renewables in Castelnuovo Scrivia, with 104.16 MWh of storage capacity. Across projects with stated schedules, the report gives construction periods ranging from six to 31 months; those are projected timelines, not confirmation that construction has started.
Approvals Are Not Completed Projects
The report documents government authorizations, but does not establish that the approved projects have entered construction, secured all financing, or will be completed. The cited construction periods are expectations reported for selected projects and do not confirm start dates or final commissioning dates.
There is also limited information on the projects’ energy storage capacity. The source says few decrees specify MWh figures. Where they are available, reported durations range from about 3.5 hours for Castel Giorgio to more than 4.5 hours for Brindisi and Santa Maria La Longa, with other projects around four hours. A complete capacity and duration breakdown for all 24 approvals is not provided.
The source does not explain what share of the approved pipeline will proceed, or provide a consolidated schedule for grid connection and operation. The 3.7 GW figure should therefore be read as authorized power capacity for October, not as storage already operating or a forecast of capacity certain to be built.
Construction and Grid Milestones
The next milestones are project-specific: developers will need to move from authorization toward construction and, later, grid connection. Reported construction estimates include about 17 months for Castel Giorgio, 24 months for the Nuveen and Reden projects, and nine months for the GR Value project. The report does not give confirmed construction start dates for these developments.
Further reporting will be needed to establish which approvals advance, whether schedules change, and how many projects reach operation. More detailed project disclosures could also clarify energy capacity, storage duration and connection timelines, information that is not available for much of the October total.
Key Questions
How much battery storage did Italy authorize in October?
Italy authorized 24 projects totaling 3.7 GW of battery power capacity in October, according to Energy Storage.
Which region received the most approvals?
Puglia received 12 authorizations totaling about 2,237 MW, equal to 60.6% of October’s authorized capacity.
What was the largest project in the October 30 approvals?
The largest was the 434.5 MW Castra Energiae Umbriae project in Castel Giorgio, Umbria. Its planned storage capacity is about 1.5 GWh, according to the report.
Does 3.7 GW mean the batteries are already operating?
No. The figure describes authorized project power capacity. The source does not say that all the projects have begun construction or are operating.
How does October compare with September?
September had 26 authorizations totaling 3.2 GW; October had 24 authorizations totaling 3.7 GW. October therefore had fewer projects but more approved capacity.
Source: ess-news.com
