Unfortunately, you'll need to put out a ton of effort to receive a fairly small prize on the other side, as upgrading your Wind Farm requires you to collect 40 building materials:
- 8 Silver Windvane
- 8 Silver Petitions
- 8 Silver Towers
- 8 Silver Blades
- 8 Silver Brake Pads
These items are earned through a combination of general requests posted to your wall and individual requests sent to your friends. For collecting all of these items, the Wind Farm's energy output will increase from five points to six. You'll also receive five energy points and a Zoning Permit as rewards that are specific to the construction of this upgrade. Other than that, you're looking at just one more energy point added to your cap, which may or may not be worth the effort, depending on how desperate you are for energy in your town.
What do you think of this Wind Farm Upgrade? Is the single energy cap point worth collecting 40 building materials? Sound off in the comments!