Largest storage IPPs (BESS)
Battery storage (BESS) capacity. Pumped storage is tracked separately and not aggregated here. Where a company discloses MWh, the figure is shown in the unit reported.
| # | Company | HQ | Storage | Basis | As of | Confidence |
|---|---|---|---|---|---|---|
| 1 | Grenergy ipp · developer | Spain | 21.7 GWh | Port | 2025-06-30 | High confidence |
| 2 | ACWA Power ipp · developer · asset_owner · state_owned_platform | Saudi Arabia | 5.60 GWh | Port | 2025-12-31 | High confidence |
| 3 | Enel Green Power ipp · developer · asset_owner | Italy | 3.40 GW | Op | 2025-12-31 | High confidence |
| 4 | Scatec ipp · developer | Norway | 1.20 GWh | Op | 2025-12-31 | High confidence |
