SEANERGYS is an EuroHPC JU project developing an integrated software suite to optimize the operation of HPC systems, aiming to reduce energy consumption across real-world workload mixes. Additional objectives include optimizing resource utilization, enhancing system throughput, and minimizing response times. This paper introduces the overall SEANERGYS software architecture, covering its three main elements (monitoring, AI data analytics, and dynamic scheduling and resource management) leveraging a central data plane to connect them.