The energy transition towards Market-Wide Half Hourly Settlement (MHHS) in the UK's electricity sector provides vital lessons for the gas industry in its evolution towards a more sustainable energy future. Data plays a crucial role in redesigning energy systems to accommodate renewable gases like hydrogen efficiently. MHHS, which mandates smart meter rollouts for electricity suppliers, emphasizes the significance of accurate data collection in achieving billing accuracy and balancing supply and demand. Real-time settlement methodologies are explored to handle the complexities of a mixed gas network, ensuring fair consumer billing and optimizing operations. Leveraging granular data on gas consumption and content is essential for accurate settlement, improved billing precision, and gas procurement optimization. The benefits of more frequent gas settlements include enhanced forecasting, efficient gas purchasing, and improved tracking of gas blend compositions. This shift supports the integration of renewable gases and contributes to the UK's net zero goals by promoting smarter, lower-emission energy use. However, transitioning to hourly or half-hourly gas settlements requires substantial infrastructure enhancements to process and validate detailed consumption data accurately. Challenges like developing new algorithms and enhancing data validation methods must be addressed to accommodate variable gas compositions. Overall, embracing more frequent gas settlements can drive efficiency, accuracy, and support the UK's transition to a sustainable energy future.