Energy is used to clear obstacles on your farm and in the exploration maps. 

Skyyberry Island is free-to-play. Optionally, you can purchase Energy packs to help speed up your progress.

There are many ways to obtain Energy in the game:

• Complete quests.
• Level up.
• Use the Ice Cream Maker to turn Vanilla, Chocolate, and Cherries into Energy.
• Use the Smoothie Mixer or the Candy Factory to turn fruits you find while exploring into Energy.
• Complete orders in the Order Board and unlock the reward gift boxes.
• Energy refills by itself. Earning 1 Energy every 90 seconds.
• Open chests and treasures found while exploring
• Trade loot you find with Lenny. 
• ... more watts to get Energy are coming soon.

Skyberry Island is free to play, and all features are available free of charge.