I think Tesla as an automotive and battery company won't be affected much. Since credits for Tesla vehicles are set to expire in the near future due to hitting the 200k mark in my opinion there isn't much downside there. On the other hand if Tesla does purchase Solar City that could be quite a thorn if the 30% installation credit is removed or not extended. One just has to travel between states that have pro solar stances and those who don't to see the vast difference in installations. A great example is between MD and VA. The price of an installed solar array would have to come down by 30% to make up the difference and a lot of the cost now is made up by labor and not necessarily the panels themselves. I think Tesla is currently oversold due to the election results but only if the solar acquisition doesn't go through.