1. Introduction
  1.1 Background and Significance
  1.2 Objectives of the Study
2. Literature Review
  2.1 Energy Performance Metrics and Standards
  2.2 Building Envelope Design for Energy Efficiency
  2.3 Passive and Active Energy Systems
  2.4 Smart Building Technologies
3. Methodology
  3.1 Research Framework
  3.2 Data Collection and Analysis Methods
4. Energy-Efficient Building Envelope Design
  4.1 Insulation Materials and Techniques
  4.2 Glazing Systems and Solar Heat Gain Control
  4.3 Daylighting and Natural Ventilation Strategies
5. Passive and Active Energy Systems Integration
  5.1 Solar Photovoltaic and Thermal Systems
  5.2 Geothermal Heating and Cooling Systems
  5.3 Energy Recovery Ventilation