The challenges of developing net zero smart cities

Smart cities are an innovative idea to manage large cities for sustainable development and improve the living standards of citizens, In addition, projects related to digitization and smart cities need added value to increase economic sustainability and ecological, with emissions from the atmosphere, net-zero energy forms an important part of the new generation of Smart Cities and technologies and renewable energy. This paper proposes a new zero-carbon approach, exclusively for smart city projects. Due to the large differences in geographic, political, historical, economic, and social conditions in urban territories among various cities and districts, a solution cannot always be replicated. The objective of the research was to identify the common trend in technologies and strategies for replicating zero-energy or positive energy buildings/districts within the context of smart cities. With the rise in population all over the world, the smart energy market is very likely to grow about 27.1%, increasing thereby the number of smart cities. The forecast period in this study is from 2018 to 2024; hence, it is expected to provide a current view of the subject, so this paper analyzes the future challenges and limitations of sustainable and smart cities and provides, the right solution for policymakers and urban planners.