| Storage system provider | Rondo Energy, USA | Brenmiller, Israel | Brenmiller, Israel |
| Client name | Calgren Renewable Fuels, California | Enel, Italy | Fortlev, Brazil |
| Name of storage | Rondo Heat Battery | bGen | bGen |
| Type of storage / storage material | Bricks | Solid-state storage with crushed vulcanic rocks | Solid-state storage with crushed vulcanic rocks |
| Operation mode of storage | Power-to-heat | Heat-to-heat | Power-to-power |
| Maximum storage capacity | 2 MWh | 24 MWh | 1 MWh |
| Which application is stored heat used for? | Pre-heating boilers | Providing hot air to the factory | Providing stored heat to the steam turbine for balancing the grid |
| Heat-transfer medium | Air for charging and discharging | Steam | Air |
| Range of temperature for operating storage | Above 1,000 °C | Up to 750 °C | Up to 750 °C |
| Date of commissioning | March 2023 | n/a | 2022 |