Green data centre concepts focus on minimising the environmental impact of these energy-intensive facilities while maintaining high levels of performance and reliability. Key strategies include using renewable energy sources, such as solar or wind power, to reduce reliance on fossil fuels and incorporating energy-efficient technologies like advanced cooling systems that utilise free cooling or liquid cooling methods. Additionally, green data centres often employ design features that enhance energy efficiency, such as cold and hot aisle containment to optimise airflow and reduce cooling requirements. The adoption of energy-efficient hardware and the implementation of effective power management practices, including real-time monitoring and optimisation of power usage effectiveness (PUE), are also central to green data centre operations. By integrating these concepts, businesses can reduce their carbon footprint, lower operating costs, and contribute to a more sustainable future.