To meet the European Green Deal transformation for the European power sector, electricity demand is expected to jump from 20% to nearly 50%. Distributed and intermittent energy renewable resources has introduced bidirectional and complex power flows, leading to numerous bottlenecks and stability challenges. To address these challenges, the EU’s Energy Digitalization Action Plan outlines the need for substantial investments focused on the distribution grid. October 2023 saw the introduction of the EU Action Plan for Grids, which emphasizes the optimization and smarter utilization of existing grid infrastructures. A key innovation is Dynamic Line Rating (DLR) systems, which use IoT networks on power lines to make real-time adjustments, maximizing capacity and reducing congestion. However, these systems have mainly been used in traditional grids and haven't fully integrated innovative approaches like High-Temperature Low-Sag (HTLS) conductors, operating at higher temperatures with minimal sag, offer up to 33% enhanced transmission capacities and are increasingly seen as replacements for traditional conductors. Nonetheless, the integration of HTLS technologies with advanced DLR systems. HEROGRID aims to bridge with new AI-based DLR models specifically designed for HTLS powerlines. Additionally, the project seeks to pioneer IoT devices that are not only compatible with HTLS environments but are also self-powered through innovative energy harvesting technologies including piezoelectric and thermoelectric systems combined with efficient power management system. HEROGRID enhances operational efficiency and cuts maintenance costs for renewable energy infrastructures. By integrating advanced technologies into the European power grid, it supports the EU's transition to sustainable energy, enabling new business models for grid operators. Aligned with Horizon-Cl5-2024-D2-01-04, HEROGRID promises substantial contributions to energy distribution and transmission.