Operational Technology (OT) cybersecurity in the energy sector presents a highly complex challenge due to the critical infrastructure it protects and the unique demands of industrial control systems (ICS). Unlike traditional IT environments, OT systems in energy grids, power plants, and pipelines must operate continuously with minimal downtime, making them prime targets for cyberattacks. The integration of legacy systems with modern technology further complicates security efforts, as many older systems lack the necessary protections against evolving cyber threats. Additionally, the energy sector is a key target for nation-state attackers, motivated by geopolitical and economic interests, adding another layer of complexity. Securing energy OT systems requires highly specialized controls, real-time monitoring, and a deep understanding of the interdependencies between physical processes and digital networks to ensure the safe, uninterrupted delivery of energy.