Higher efficiency has become the new energy standard for data centres as organisations increasingly prioritise sustainability and cost-effectiveness in their operations. Achieving this standard involves adopting advanced technologies and best practices that significantly reduce energy consumption without compromising performance. Key strategies include optimising airflow management with solutions like blanking panels and hot/cold aisle containment, which prevent the mixing of hot and cold air, thereby improving cooling efficiency. Upgrading to energy-efficient hardware and implementing advanced cooling techniques, such as liquid cooling, also contribute to reducing power usage. Additionally, real-time monitoring of energy metrics, such as Power Usage Effectiveness (PUE), allows data centre managers to make informed decisions and continually refine their operations. Embracing these practices not only helps data centres lower their operational costs but also aligns them with global sustainability goals, making higher efficiency the new benchmark in the industry.