You are correct - it assumes total conversion, but the numbers don't change if you project some ramp for the transition. A more reasonable assumption for charg

You are correct - it assumes total conversion, but the numbers don't change if you project some ramp for the transition. A more reasonable assumption for charging is that it will take place wherever electric vehicles are parked, regardless of time of day; in that case, large parking lot installations for PV may be more sensible than individual home systems. In either case, it seems likely that increased adoption of electric vehicles will change what we consider "peak" electricity use hours, since it could consume half or more of total electricity in the US.