Energy Optimization Analysis and Case Study of Commercial Buildings Using EnergyPlus

Cities consume 75% of global energy and emit 80% of greenhouse gases, despite occupying only 3% of the world’s surface area. Buildings play a crucial role in urban energy consumption, so it is necessary to reduce building energy consumption for environmental protection. This chapter reviews the history of energy consumption in buildings, identifies high-energy-consuming buildings like hospitals, and calculates their energy consumption categories using EnergyPlus, a simulation tool. It also demonstrates how changes in design parameters such as building orientation impact building energy consumption, highlighting the importance of early design decisions for a building’s life cycle impact. Investing in these design parameters can reduce buildings’ carbon footprint and contribute to a more sustainable future. Reducing energy consumption in cities is a critical step toward a sustainable future. By implementing energy-efficient building design practices and investing in renewable energy sources, we can create a greener and healthier urban environment for all.