Agreed that site is super *cool* 
I think Tesla is slightly mistaken if they think that power density doesn't matter, though. We have two electric cars and have just swapped over to a heat pump for heating. 20kWh per year out of 13.3kw of panels is just barely going to cover that usage, and we still have not converted water heater, washer/dryer, or range to electric. Ideally I'd like to up-panel to 30kWh per year.
I'm not sure we'd be able to to get 20kWh per year out of our roof with Solarglass as we'd have to cover a bunch of northward-facing roof segments. Maybe Solarroof v4 will have higher energy density?
I think Tesla is slightly mistaken if they think that power density doesn't matter, though. We have two electric cars and have just swapped over to a heat pump for heating. 20kWh per year out of 13.3kw of panels is just barely going to cover that usage, and we still have not converted water heater, washer/dryer, or range to electric. Ideally I'd like to up-panel to 30kWh per year.
I'm not sure we'd be able to to get 20kWh per year out of our roof with Solarglass as we'd have to cover a bunch of northward-facing roof segments. Maybe Solarroof v4 will have higher energy density?
