Load estimation and power system planning are foundational components in the design and implementation of electrical systems for any building or infrastructure project. Accurate load estimation provides the essential baseline for sizing electrical equipment, selecting appropriate protection devices, determining transformer capacity, and planning distribution networks. It ensures that the electrical system can reliably support present and future power demands without under- or over-sizing components, which can lead to inefficiencies, safety hazards, or increased costs.

Power system planning, on the other hand, involves a strategic approach to organizing the generation, transmission, and distribution of electrical power. It considers system reliability, redundancy, energy efficiency, scalability, and compliance with international standards such as IEC 60364 and IEEE guidelines. Effective planning integrates load profiles, demand diversity, backup requirements, and coordination with other disciplines such as mechanical and architectural teams.

Together, load estimation and power system planning ensure the electrical infrastructure is resilient, sustainable, and optimized for performance and cost. These activities are not only critical during the concept and schematic design phases, but they also guide decisions throughout the project lifecycle—from feasibility studies to commissioning and operation. As such, they are central to achieving a safe, compliant, and future-ready electrical design.