Rapid urbanization is compelling governments and municipal authorities around the world to find new ways to optimize their infrastructure. Smart cities seem to be the only way forward when it comes to increasing efficiency and improving services in cities. In this article, we discuss how Moxa’s IIoT gateways can provide the computing backbone required for two smart city applications— Solar Energy Storage and Monitoring and Remote Asset Management for Intelligent Transportation Systems—thereby making it possible for city authorities to solve issues relating to sustainability and quality of life in communities.