Isn't it even *more* obvious that no matter where you put your sunshade, the proper place for the solar panels is in solar orbit?
Solar panels in California subject to
a) vagiaries of vulcanism (ibid)
2) Space blanket sunshielding (ibid)
$) more than a few hours of something called "night", in which little sun shines on the concentrators due to inconvenient, Californian Legislation-proof spinning of the planet.
Solar panels in solar orbit subject to
a) Meteor strikes
2) Alien infestation
$) Nothing else that cannot be easily engineered around with off-the-shelf-today technology. No unobtanium or Star Trek Bendy Physics needed.
Powersats sending back mighty beams of plentiful cheap healthy microwaves that can be easily turned into electricity is the way to go.
Then you can have your sunshade and heat it.