The 21st century is known as the century of the city; the world is becoming more urban with more than half of the world's population residing in cities. In this respect, a city is a complex dynamic system of interconnected urban processes. Nowadays, cities are hot spots responsible for the threatened global environment and urban life, as well as chronic stresses and vulnerabilities. Chronic energy shortage is one of the main stresses that threatens the city and puts pressure on city systems, mainly due to the impact of higher energy uses in urban areas. Vulnerabilities, stresses and adaptability are fundamental to the emerging science of resilience. While the concept of resilience is intriguing, this paper contributes to filling the theoretical gaps of the urban energy resilience by reviewing the concept of urban resilience, explaining the energy resilience principles and identifying the built environment components that can be used to help planners to enhance the city to absorb, recover and adapt to the vulnerabilities of the city. The paper concludes with suggesting an urban energy resilience matrix that addresses the energy shortage in a city to better understand and analyze the intricate issues for an energy-efficient, resilient, safer future city.

Life became digitalized and smartly controlled that requiring more energy usage. Smart cities and urbanization focus on the challenge of worldwide urbanization through the recognition of opportunities to integrate social, physical, environmental and technological infrastructure. Urbanization expands the need of all services including water, power, transportation, as well as other facilities. All those infrastructures should be delivered to citizen within a short period of time with very well controlled systems to provide more simple and comfortable life. Furthermore, stakeholders and citizens should be responsible and cooperative with government and organizations in order to achieve better solution for smart sustainable living approach. Although the smart urbanization has the potential to become a positive transformative force for every aspect of sustainable development in cities, there is a lack of knowledge using the smart and sustainable concepts in cities. Therefore, this paper aims to propose a framework which merges the sustainable aspects with the Smart city components. The paper started by an analytical study about smart cities fields and their needs, then a study for sustainability aspects, all this end with a framework tested by a questionnaire to propose guidelines and recommendations to be followed by city planners in order to achieve sustainability goals in smart cities for better impact on citizens.