I would presume that we will use whatever is available that is allowed. However, nothing permanent can be added on to the Binyan, so presumable electric wiring would be Assur because of HaKol Biksav…
Pixelate: You make an assumption that Shlomo being the smartest man ever means he could outthink all of the inventors of the future combined. Many inventions involve lifetimes of work as all science builds upon previous science. Einstein couldn’t have been Einstein without Newton. So even if Shlomo Hamelech was a good deal smarter than Newton and Einstein and everyone else, who is to say that he possessed the ability to think of Newton and then build upon that and then build upon that, etc.?