The 7th International Conference on Renewable Energy, Resources and Sustainable Technologies, held from June 23-24, 2025, in the historic city of Vienna, Austria, with the theme “Innovating Energy Solutions for a Sustainable Future” as a landmark event in the global energy and technology sectors. This conference attracted professionals, researchers, policymakers, and innovators from around the world, all focused on shaping the future of energy systems through technological advancements, policy frameworks, and collaborative innovation. EnergyTech 2025 will place particular emphasis on energy efficiency as a crucial component of the sustainable energy transition. Discussions highlight the economic and environmental benefits of reducing energy waste, from industrial sectors to household energy use, and the potential for AI-driven tools to optimize energy consumption in real time. EnergyTech 2025 in Vienna proved to be a critical gathering for energy leaders, offering fresh perspectives, groundbreaking innovations, and a shared resolve to build a more sustainable future. The attendees will leave the conference not only with new knowledge and connections but also a renewed sense of purpose in shaping the next generation of energy systems.