  The concept of smart cities is driven by the need to enhance citizens'
quality of life. It is estimated that 70% of the world population will live in
urban areas by 2050. The electric grid is the energy backbone of smart city
deployments. An electric energy system immune to adverse events, both cyber and
physical risks, and able to support the integration of renewable sources will
drive a transformational development approach for future smart cities. This
article describes how the future electric energy system with 100% electricity
supply from renewable energy sources requires the "birth of security and
resiliency" incorporated with its ecosystem.
