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Solar Domestic Hot Water Systems for ecoENERGY Retrofit – Homes

Certain solar domestic hot water (SDHW) systems are eligible under the ecoENERGY Retrofit – Homes program. The SDHW grant can range from $1250 for a single-family home to a maximum of $12,500 for a 20-unit multi-unit residential building (MURB) or mixed-use building (MUB). This page offers more details than the program Grant Table and the related lists of Eligible Domestic Hot Water Equipment.

Single-Family Homes

For single-family homes, the SDHW system must provide a minimum energy contribution of 6 giagajoules per year (GJ/yr)and be certified to the CAN/CSA F379 standard. Eligible systems must 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.

MURBs and MUBs

For eligible low-rise MURB's, the SDHW system must 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 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, the installer must 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.

For alternative water heating measures, consult the program Grant Table and the Eligible Upgrades section of the Frequently-Asked Questions Web page.

Next: Condensing gas storage-type water heaters