Abstract: The modern energy sector is undergoing a profound paradigm shift, moving beyond traditional electrical engineering to embrace advanced methodologies from industrial automation and Information Technology (IT). This presentation explores the convergence of these disciplines, demonstrating how cross-industry innovation is redefining the stability and management of National Power Systems. Using the recently implemented Automatic Operational Limitation (ALO) system in Romania as a case study, the session highlights the indispensable role of advanced automation. As renewable energy sources introduce volatility, the grid can no longer rely solely on physical infrastructure reinforcement; it requires the "nervous system" provided by intelligent, high-speed automation. The presentation details how concepts typically found in mission-critical IT—such as "Resilience by Design" and full architectural redundancy—were successfully adapted to solve complex energy transmission challenges. Furthermore, the discussion addresses the critical imperative of cybersecurity in this evolving landscape. As operational technology (OT) becomes increasingly digitized and interconnected, the attack surface widens. The presentation argues that cybersecurity can no longer be an afterthought but must be integrated into the core engineering phase. Attendees will gain insights into how the fusion of energy expertise, robust automation, and proactive cyber-defense is building the next generation of resilient critical infrastructure.