If you are trying to argue that in aggregate the demand for energy in canada drops because of high adoption of residential solar which then passes off clean energy to the US - its a reach. Also the amount of individual infra for each small residential asset is probably not particularly great return on investment - would be better to do as large deployments.
"If you are trying to argue that in aggregate the demand for energy in canada drops because of high adoption of residential solar which then passes off clean energy to the US"
Well... ya. If on sunny day 10 000 homes in the GTA offset 1000W of energy, that'a 10MW more power that CND can export. Furthermore, the GTA has massive energy storage capacity from an artificial lake by the falls so the 10 MW doesn't become a rounding error.
.... but 10 MW is piss. Solar in CND is piss.
Canada is a massive exporter of electricity to the USA. The more clean energy CND produces the more there is to displace North East's coal.
Of course, solar on Canadians' roof is a joke. A proper regulatory regime would encourage solar in Arizona and encourage lettuce Canada; not vice versa.