Why not build data centers around Earth so that there is always solar power available to some of them (and you perhaps get to use the waste heat for something useful like heating homes), and then make the data centers available everywhere on Earth via satellites or something?
A good bit off topic but replying here anyway. If humanity was not special enough to set the Interdict of Merlin on absolutely everybody it could really turn against them when the aliens arrive.
Anybody believing Hermione was meddled with ought to be asking who will be next. The mentioned mistake has Harry assuming Hermione didn't go undetected for six months, so he is far less alarmed than he should be.
Look at the first few pages of "the 2009 paper".