The total factor productivity of energy efficiency in buildings

As a result of the developing technology, the increasing population, level of prosperity and industrialization, the need for energy and consumption of energy have increased in the world and in Turkey. Due to rapid depletion of energy resources, limited fossil fuel reserves and the environmental and economic problems associated with the aforementioned fuels, it has become necessary to use energy more effectively and efficiently in areas such as industry, buildings and services. Considering that buildings are responsible for the consumption of approximately 25% of water resources, approximately 40% of energy resources and approximately 33% of greenhouse gas emissions worldwide, it is seen that buildings are among the priority issues that should be addressed in the field of energy and environment. In this study, the energy performance of residential buildings, accounting for 86.8 % of the building stock in Turkey, was examined on the basis of provinces and countrywide for the period of 2015-2017. The total factor productivity of the provinces in Turkey was explored within the scope of energy efficiency in buildings by setting up 2 models based on the Energy Identity Certificate. Input oriented Data Envelopment Analysis and Malmquist Total Factor Productivity Index methods were used to measure the total factor productivity, efficiency and technological changes of the provinces. Taking into account the inputs and outputs of the models a general assessment was made on the basis of provinces and countrywide according to the results of the analysis and suggestions were made to guide decision-makers.