At the end of December, Italy had 39,706 storage systems linked to renewable energy power generators, according to figures released by the national renewables association ANIE Rinnovabili. These storage systems have a combined capacity of 189.5 MW and a maximum storage capacity of 295.6 MWh. This compares to 115.9 MW/186.3 MWh of distributed storage capacity at the end of December 2019.
With the exception of one standalone system, all the deployed batteries have a capacity of up to 10 kW. Around 96% of the installed storage capacity is represented by systems based on lithium-ion technology. The figures show around 99% of the devices have a storage capacity of less than 20 kWh.
Most of the storage systems are deployed in the region of Lombardy – some 12,169 units with a combined capacity of 51.8 MW/85.4 MWh. The regional government is implementing a multi-year rebate scheme for residential and commercial storage systems coupled with PV. The scheme is open to two different kinds of projects – installations of PV systems linked to storage systems, and the deployment of standalone storage systems linked to existing solar arrays. For the first project category, the rebates cover 50% of purchase and installation costs. This percentage could go up to 90% for projects developed by small municipalities.
The Veneto region, which is also supporting distributed storage deployment through an ad hoc scheme, has the second-largest volume of storage capacity, at 30.4 MW/51.4 MWh.
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