Nice concept, a bit more feedback of how well you've done so far, like timer. Didn't know I could make diagonals until I read in this section, and confused why only the left pole give power to the house. Maybe give the player a chance to repair poles, and increase the difficulty by ramping up the thunder strikes - I would say this removes the feeling of being cheated on by receiving diagonally struck houses that kills entire lines that can't recover.