Cool game idea, I like it! You seem to really like tower defense games! The tutorial was well done, and I liked how you could seamlessly go from the tutorial to the gameplay. I'm not sure what is stopping me from just putting the towers in spots where they don't hit the enemies though? I put my conduit and tower where they didn't cross along the path and it didn't seem to negatively affect me in any way. I think for this game concept to work, you need to add incentives for the player to make a wide reaching power network that needs to cross the grid. Maybe there's power spots that you need to connect to a main conduit, forcing you to cross the enemy's path. Just an idea though! I think that the turret idea would be really cool in a normal tower defense game too!