Stealth Power, a leading provider of smart mobile power systems, created idle reduction technology based on Azure and Windows 10 IoT Core. Used in more than 300 ambulances by the New York City Fire Department (FDNY), the solution significantly reduces idling time while keeping mission-critical medical and communication devices running. Over the course of one year, FDNY could reduce fuel consumption in their top performing vehicles by up to 34 percent—which could save the city an estimated US$3 million in fuel costs, and reduce annual CO2 emissions by more than 20 million pounds annually.