Neat browser game, and I loved the premise! Solar power advocation is always a good thing lol. I feel like the bones are really good, the game is fun already and I can see a lot of potential for some tycoon-esque and puzzle game elements that could start to come in to play. I didn't mind the memory game aspect as it is now, I was able to come up with a system for the sales pitch and installation that worked pretty well for trying all the options with minimal accidental repeats. I do agree with the other comment about some visual cues when the game starts to scale bigger, I could see trying to remember things on a larger grid being more of a challenge. Good start though I would be interested to see where you wind up taking things with the project.
Feedback Question: The game ran smoothly and I did not notice any issued with lag or game speed. I played the web version and had no issues during gameplay.