Achieving net zero emissions in Canada requires significant electrification, including the electrification of space heating in buildings, which is expected to increase peak load, electricity system costs, and electricity prices across Canada. Natural Resouces Canada contracted Navius to examine ways to mitigate increases in peak electricity load, specifically by examining the potential role of distributed utility-controlled thermal energy storage (TES) in reducing peak. This study quantifies the impact of distributed TES on Canada’s electricity systems using Navius’ in-house energy-economy-electricity modeling framework, gTech.