Energy efficiency is a critical focus for UK hoteliers aiming to reduce operational costs, meet sustainability targets, and enhance guest experiences. Our coverage examines how hotels are implementing advanced energy management systems (EMS), integrating Internet of Things (IoT) devices, and adopting smart technologies to optimise energy consumption. We report on initiatives such as occupancy-based HVAC controls, LED lighting upgrades, and the use of renewable energy sources. Additionally, we explore the financial and environmental benefits of these strategies, including case studies where hotels have achieved significant energy savings and carbon footprint reductions. Our insights provide hotel industry professionals with practical guidance on improving energy performance and aligning with the UK’s net-zero ambitions.