This fact sheet outlines proven strategies for identifying and implementing energy- and carbon-emission-saving measures through existing building commissioning (EBCx). It highlights practical actions such as optimizing equipment operating schedules, adjusting hydronic and air supply temperatures, managing ventilation and exhaust rates, eliminating simultaneous heating and cooling, and upgrading lighting controls. These measures help building owners and operators improve energy efficiency, reduce operational costs, enhance occupant comfort, and extend equipment life. The fact sheet is relevant for a wide range of sectors, including education, government, healthcare, hospitality, industrial, municipality, office buildings, and residential, where building systems play a critical role in daily operations.

The fact sheet was prepared by Prism Engineering on behalf of Natural Resources Canada (NRCan).