The Social Housing Retrofit Project is publicly listed on the CSA CleanProjects Registry and has been 3rd party verified under ISO-14064-2 by Grant Thornton LLP. This project was implemented by Office municipal d'habitation de Montréal's (OMHM) and utilizes new and energy efficient technologies which replace inefficient gas boilers, piping systems, and allow for the fuel switching of heat generation systems from natural gas to electricity.

Since 2003, OMHM has gradually implemented several energy efficient projects, which substantially reduce electricity and natural gas consumption. Among them, three initiatives have had a major impact on the reduction of emissions, including the replacement of 211 gas boilers, heat generation system fuel displacement, and retrofits performed on 17 underground parking facilities.

Project Type

Verified Emissions Reductions are achieved from each project through verification and validation that is specific to each project that mitigates climate change.

Energy Efficiency


Carbonzero utilizes offset standards that are subject to the Voluntary Carbon Market. Click here for a list of the standards and their definitions.





This is the year in which the emissions reductions took place for a specific project. The quantity of carbon that has been offset are validated and verified by accredited GHG auditors.



December 2011