America also loves reserving vast swathes of the road for on-street parking, as well as endless fields of parking lots, not to mention that an enormous number of homeowners would rather park in their driveway and use their garage for storage.
I'm not trying to say solar roofs on cars make sense as a default option, but focusing on "percentage of battery charged" is the wrong metric. Most Americans would get by just fine on a relatively modest amount of charge per day, especially if we got over our range anxiety of insisting on massively oversized batteries for the average EV, which drastically increases weight and decreases efficiency.
Double an ioniq 5's miles per kw/h to 8m/kWh, use the maximum possible insolation (1kw/m^2) and theoretical PV efficiency (70%, reality is 30% btw) and you get... 8kw/h@12hrs a day generated and 3.75kwh needed. about double what this impossibly optimistic calculation gives. Half all the inputs and double the consumption and you get a quarter of the power needed.
It's interesting how much people expect an EV battery to be at 100% charged at all times but have you met the sort of person that tries to keep an ICE vehicle 100% fueled at all times? (It's costly and wasteful and a logistics nightmare, before also getting into questions of how dangerous it can be.)
America also loves reserving vast swathes of the road for on-street parking, as well as endless fields of parking lots, not to mention that an enormous number of homeowners would rather park in their driveway and use their garage for storage.
I'm not trying to say solar roofs on cars make sense as a default option, but focusing on "percentage of battery charged" is the wrong metric. Most Americans would get by just fine on a relatively modest amount of charge per day, especially if we got over our range anxiety of insisting on massively oversized batteries for the average EV, which drastically increases weight and decreases efficiency.
Double an ioniq 5's miles per kw/h to 8m/kWh, use the maximum possible insolation (1kw/m^2) and theoretical PV efficiency (70%, reality is 30% btw) and you get... 8kw/h@12hrs a day generated and 3.75kwh needed. about double what this impossibly optimistic calculation gives. Half all the inputs and double the consumption and you get a quarter of the power needed.
It's interesting how much people expect an EV battery to be at 100% charged at all times but have you met the sort of person that tries to keep an ICE vehicle 100% fueled at all times? (It's costly and wasteful and a logistics nightmare, before also getting into questions of how dangerous it can be.)