https://electrifyheartlanddev.bluesym15.work/wp-content/uploads/2026/05/ESS-sodium-ion-battery-storage-ipr5hA.jpeg8001600Brandt Hertensteinhttps://electrifyheartlanddev.bluesym15.work/wp-content/uploads/MicrosoftTeams-image.pngBrandt Hertenstein2026-05-06 18:45:162026-05-06 18:45:16ESS adds 8.5 GWh of sodium-ion to its battery storage portfolio