This study aimed to develop a data-driven Energy Management Plan (EMP) for lighting and air-conditioning systems in a private university based on Republic Act No. 11285 or the Energy Efficiency and Conservation (EEC) Act compliance assessment and enabler–barrier modelling. A descriptive–developmental design was used, employing surveys, interviews, document analysis, and a Level I Energy Walkthrough Audit. Findings showed high compliance in operational practices and reporting, while policy institutionalization and monitoring systems were moderate. Enablers were moderately present, with strong management support and behavioral practices, while financial, technical, and organizational constraints limited advanced energy management implementation. Barriers such as financial limitations, organizational gaps, and underutilization of energy audit results affected performance. Audit results revealed inefficiencies in air-conditioning systems due to non-inverter units and temperature inconsistencies. A comprehensive EMP was developed, integrating energy conservation measures and monitoring systems aligned with ISO 50001. The study concludes that a structured approach can improve energy efficiency and support sustainable practices.