This was what I came up with in 4 hours. All code was created from scratch (except the odd copy-paste of small blocks from other files).
'Solar Power Tower' was inspired by my last trip to Las Vegas, where you can see some pretty impressive solar arrays from the freeway at the Nevada / California border.
The premise is: The solar panels must be aligned to allow the energy to be directed to the tower. Tap each panel to position the panel to get the energy to flow!