For single-family homes, the SDHW system shouldprovide a minimum energy contribution of 6 giagajoules per year (GJ/yr), be certified to the CAN/CSA F379 standard and appear in CanmetENERGY’s Performance Directory of Solar Domestic Hot Water Systems (Table 1). That Web page also explains the requirements for adding systems to the directory.
Multi-Unit Residential Buildings (MURBs)
For eligible low-rise MURB's, the SDHW system should provide a minimum energy contribution of 3 GJ/yr per residential unit (minimum of 6 GJ/yr per system) and have solar collectors that meet the CAN/CSA F378 Standard or equivalent. System installers can contact a residential program officer from the Office of Energy Efficiency to request detailed information on SDHW systems including a Microsoft Excel-based calculator to determine the estimated energy output. If the collectors are not listed in the calculator, ask your installer to provide the system capacity using the standard day test defined in CAN/CSA F379 (150 litres per day per residential unit) by generating a TRNSYS simulation.
If you obtain an evaluation for your property using the EnerGuide Rating System, these units may be eligible for certain regional programs and incentives. For links to lists of other types of energy efficient equipment, consult the Compare Product Models page.