Is it better to get the HPWC + rebate, or simply have an electrician install a NEMA 14-50?
I assume that the installation of NEMA 14-50 would not qualify for the rebate in Ontario?
First post - welcome to the forum, Sean!
You're right that you can't get the rebate for a 14-50.
Here's a rough cost calculation - just estimates, not including tax:
14-50:
- Wiring parts (breaker, cable, disconnect, outlet): $50 - $150 depending on how long the cable run is
- Installation: $150 by an electrician, or $0 if you do it yourself
- Inspection: $85
- Total: $135 - $385
HPWC:
- Wiring parts: $50 - $500 (high end for 100A breaker and cable)
- HPWC: $910 (US$750)
- Installation: $200 by an electrician, or $0 if you do it yourself
- Inspection: $85
- Total before rebate: $1045 - $1695
- After 50% rebate: $523 - $848
(In either case, if you need to upgrade your main breaker panel or service, that could add a lot to the cost, but that's the same for either choice.)
So a 14-50 is cheaper than the HPWC option and most people would say a 50A circuit (charging at 40A) is fast enough for home charging, BUT I would still recommend the HPWC. It has only one plug-in connector (cable to car) rather than 3 for the UMC (cable to car, cable to adaptor, adaptor to wall) and it's the plug-in connections that tend to wear, get hot or fail. The HPWC has a heavier cable than the UMC as well, so the HPWC is a more "rugged" solution. Also, if you want to have your UMC always in the car in case you need it, you'd have to either unplug it and stick it in the trunk every day, or after you get tired of that, buy a second one for another $790, which wipes out the cost advantage of the UMC.
If you decide to go with the HPWC for these reasons but still want to keep the cost down, consider an HPWC on a 50A or 80A breaker rather than 100A. That will reduce the cable and installation costs.