Worlds, Sand Elisa Oyj Finland 07.08.2025 - 18:06:15 World's largest Sand Battery to be optimised with Elisa's AI-powered energy flexibility solution to ensure profitability from electricity reserve markets View original content:https://www.prnewswire.co.uk/news-releases/worlds-largest-sand-battery-to-be-optimised-with-elisas-ai-powered-energy-flexibility-solution-to-ensure-profitability-from-electricity-reserve-markets-302352977.html