Adorable small city management sim with just the right dose of challenge. I like the graphics which suits the best smaller scope of the game. 

 I'd love to see option to hover over tile and see energy production of the tile right away without need to click on it to get the information. I don't know whether it's on purpose but I'd also find helpful if I could see wind and consumption patterns longer into the future. Last thing - punishment mechanism (removing hearts when failing to meet energy consumption) seems a bit too harsh and unforgiving.

Would love to see more in the future :) Keep it up!