Core Viewpoint - Sono Group N.V. and its subsidiary Sono Solar have launched a fully integrated solar-powered system for electric and hybrid trailer refrigeration units (eTRUs) in collaboration with MTTE, marking a significant advancement in sustainable logistics solutions in Europe [1][2][3] Group 1: Product and Technology - The new system integrates MTTE's TEF1500 eTRU and battery pack with Sono Solar's photovoltaic modules and intelligent charge controller, enabling continuous solar charging to enhance battery autonomy and reduce diesel consumption and CO₂ emissions [1][2] - The solution addresses the increasing demand among European fleets for lower-emission refrigeration options, allowing operators to decrease fuel consumption and comply with stricter environmental regulations without sacrificing cooling performance [2] Group 2: Collaboration and Market Impact - The partnership with MTTE is expected to elevate the quality and scale of solar integration for refrigerated fleets, with both companies committed to advancing electric transport refrigeration systems [3] - A fully equipped semi-trailer featuring the integrated system is available for customer trials, with potential extensions to other vehicle classes being evaluated [3] Group 3: Industry Showcase - The integrated solar-powered system will be showcased at the NUFAM event in Karlsruhe from September 25–28, 2025, highlighting the ongoing commercial progress and the capital-light, partner-driven strategy of Sono Group [4]