The guest room energy management market is going through a period of significant evolutionary change, moving from almost hardware-only solutions to broader solutions based on hardware, software, and services. Today, ongoing energy management of a property is achieved through an integrated, holistic view into a hotel?s energy performance compiled by a broad array of sensing and control points, data feeds, and analytics. The real vendor opportunity and associated market growth for hotel guest room energy management systems (GR-EMSs) lies in the fundamental shift in focus from the standalone hardware-oriented systems to networked systems with data aggregation, analysis, and reporting. Greater customer value and solution differentiation will be delivered through software via a software-as-a-service (SaaS)-based service and consulting offering, as well as through follow-on operational services such as property-wide monitoring and remote energy management. Vendors will increasingly be taking a holistic view of a hotel?s entire energy ecosystem: energy acquisition and supply management, energy usage, efficiency tuning, comparative benchmarking and trends analysis, system improvement recommendations, periodic recommissioning, and so on. Navigant Research forecasts that the global market for GR-EMSs and enterprise-level energy management software in the hospitality sector will reach $967.9 million in 2020, up from $445.5 million in 2012. This Navigant Research report analyzes the current state of the market for hotel GR-EMSs, including the related hardware, software, and services components. The report outlines the market and technology issues that are affecting the growth and adoption of GR-EMSs around the world. Global market forecasts for the GR-EMS market, with separate breakdowns by product and hotel segment, system type, and region, extend through 2020. The report also examines the competitive landscape, as well as the best practices and market trends that will shape energy management in the lodging industry for the rest of the decade.