4A 3 - Early Results of Steam to Hot Water Peak Heating Demand Reductions for ESAP Buildings in Ottawa.

Presentation Description: This presentation details a comparative analysis of pre- and post-conversion peak heating demand for diverse ESAP buildings (offices, event centre, art gallery, theatre, labs, etc.) transitioning from central steam to hot water district heating. Early results show measurable peak demand reductions across all building types, driven by reduced distribution losses and improved system control. These findings provide critical data for future district heating infrastructure planning.

Case Study: The ESAP Downtown Ottawa system just achieved substantial performance. We will have good comparative data between the legacy steam system and connected buildings to the new modernized Low temperature hot water system.