January closes with more than 24 GW of permitted battery storage in Spain

Red Eléctrica has updated the generation access capacity figures for Spain. As of the end of January 2026, wind, solar photovoltaic, and hybrid installations account for a substantial volume of capacity at different stages of development. A total of 70.6 GW is already in service and able to inject power into the grid, 84.1 GW has been granted access and connection permits but is not yet operational, and a further 31.2 GW is currently undergoing the access and connection permitting process. These aggregate figures highlight the dominant role of solar photovoltaic technology in the project pipeline, alongside the growing presence of battery storage and hybrid generation-storage systems.

Access capacity data reflect the maximum active power that each facility can inject into the grid once connected, whereas installed capacity refers to the total generation capacity of each asset.

At present, 25,535 MW of installed photovoltaic capacity is connected to the TSO and 11,881 MW to the DSO. In addition, 60,752 MW of photovoltaic capacity has been granted access and connection permits but is not yet operational, including 18,204 MW connected to the TSO. A further 10,882 MW (TSO) and 5,934 MW (DSO) remain under permitting.

Battery storage capacity currently in operation remains limited relative to the scale of the pipeline, with 72 MW connected to the TSO and 24 MW to the DSO. By contrast, projects with granted permits total 16,156 MW in the TSO and 8,157 MW in the DSO, with an additional 11,590 MW (TSO) and 3,490 MW (DSO) still in the permitting process. Looking at the overal pipeline, battery storage projects represent 27,818 MW connected to the TSO and 11,671 MW to the DSO.

From pv magazine Spain