A COMPREHENSIVE METHODOLOGY FOR MONITORING AND ANALYSING ENERGY CONSUMPTION IN PUBLIC FACILITIES: CASE STUDY OF A PUBLIC FACILITY

Abstract

This study conducted an energy efficiency assessment of a public facility, analysing various electrical parameters including line and phase voltages, current, real and apparent powers, and power factor. The analysis reveals significant imbalances across phases, highlighting inefficiencies that contribute to potential safety concerns, equipment stress and reduced equipment lifespan. The key findings include maximum phase voltages which exceeds acceptable limits
by up to 15%, while the minimum line voltages fall below recommended ranges by 10%. One phase carries 2.4 times the current of another. One phase consumed 130% more real power than another as the apparent power distribution mirrors real power, with one phase exhibiting a 140% higher maximum value than another. The measured power factors ranged from 0.42 - 0.99 across phases, indicating potential for improvement, while the current unbalanced factor
of 44.2% is high and indicates a serious current imbalance. Addressing these imbalances and inefficiencies present significant opportunities for improvement. Optimizing power systems through load balancing, reactive power compensation, and efficient equipment use enhances
safety, extends equipment life, and boosts sustainability. This study emphasizes the importance of detailed power analysis for optimizing energy use and promoting sustainability in public facilities. By addressing the identified issues, the facility can pave the way for a more energy efficient system.