Greenvolt Group, through its subsidiary Greenvolt Power, has emerged among the winners in Italy's 'largest' battery energy storage system (BESS) auction, securing a 15-year indexed tariff for a 499MWh project.  

The auction, organised by Italy's grid operator TERNA, is part of the Electric Storage Procurement Mechanism (MACSE) initiative. 

The winning project is to be located in the MACSE South & Calabria auction zone. 

Greenvolt stated that the project, with an estimated capacity of 75MW/600MWh, will be its first eight-hour Li-ion battery system and is expected to become one of the largest long-duration storage projects in Europe in the years to come. 

The auction reportedly saw heavy competition, with demand exceeding supply by more than four times.  

A total of 10GWh of storage capacity was awarded against a submission of over 40GW. 

The South & Calabria area reached its maximum allocation with only three developers being chosen.  

The awarded capacity is expected to be operational by 2028. 

The MACSE auction is the inaugural event in a series of three scheduled to take place by 2028.  

These auctions are designed to enhance system flexibility and promote the decarbonisation of Italy's power sector. 

The two additional auctions aim to achieve 70GWh of operational capacity by 2030. 

Greenvolt Group CEO João Manso Neto said: “We are very pleased with the outcome of the Italian auction, achieved in a highly competitive context. Batteries, a sector in which Greenvolt is one of the leading European players, are fundamental to ensuring grid stability at a time of strong expansion of renewable energy.

"At the same time, this 15-year contract represents a clear reinforcement of our operations in the Italian market.” 

Greenvolt Group is a developer of large-scale wind, solar, and storage projects in Europe, with a total portfolio of 14.1GW across 19 countries, including 4.7GW of BESS projects.