This document discusses how smart city applications will evolve by 2030 due to the Internet of Things (IoT). It outlines that smart cities will have smart economies, buildings, mobility, energy, planning, citizens, governance, and ICT. Future energy grids will utilize distributed and virtual power plants. The Internet of Energy will allow energy transfer between sectors like energy, mobility, and buildings through energy gateways. Smart mobility and transport applications will connect vehicles to share information and make transportation easier and safer. Smart homes and buildings will integrate cyber physical systems to achieve interoperability. Factories will also be connected through IoT applications to create smarter production ecosystems.