Net Zero Energy Buildings (NZEB): A Case Study of Net Zero Energy Home in Pakistan

The common issue all the nations facing these days is the climate change. The entropy of the environment is increasing with the passage of time which affects the ozone layer and increases the global warming potential. The change in climate is mainly due to the emission of Green-House Gases (GHGs) which are produces from emission of gases and use of fossil fuels for generation of electricity in Pakistan. Most of the energy is used in commercial buildings as well as in residential buildings. It is the requirement of the hour that buildings are constructed in such a way that they consume lesser amount of energy due to efficient design and generate on-site energy for own utilization as well as to export extra energy to the utility. These Net Zero Energy Buildings (NZEB) use energy from utility only when these sources are unavailable. NZEB play a vital role for sustainable energy utilization, energy security and being environment friendly. This paper gives a comparative analysis of electricity consumption in a conventional building and a NZEB. The concept of smart metering is also used to analyze the advantages of NZEB.