Subsidiary Sono Solar and MTTE unveil a fully integrated solar-powered system for eTRUs on semi-trailers; first demo trailer available for fleet trials and public showcase at NUFAM Karlsruhe, September 25–28, 2025Munich, Sept. 24, 2025 (GLOBE NEWSWIRE) -- Sono Group N.V. (Nasdaq: SSM) (hereafter referred to as “Sono” or the “Company”, parent company to Sono Motors GmbH, hereafter referred to as “SonoSolar” or “Subsidiary”), the solar technology company, today announced a new milestone in its commercial roll ...