Grange Walk Heat Network Optimization Case Study

This case study details the challenges and interventions undertaken at Grange Walk, a Notting Hill Genesis development in London, focusing on the heat network's optimization. The document outlines the issues faced by the two-pipe heat network, including persistent riser bellows failures and underperforming Heat Interface Units (HIUs), which led to boiler corrosion and compromised resident comfort. In collaboration with FairHeat, the project aimed to rectify these issues under the Heat Network Efficiency Scheme (HNES) Demonstrator. The Capital Works included strategic boiler replacements, plant room upgrades, bypass removal, and HIU retrofitting, all aimed at improving system performance. The outcomes demonstrated a significant increase in heat supply reliability, enhanced water quality monitoring, and improved resident satisfaction. The study emphasizes the effectiveness of data-driven interventions in transforming heat networks and suggests that similar approaches could benefit other heat network operators.