Moving from fossil fuels to renewable energy sources like wind and solar will require better ways to store energy for use when the sun is not shining or the wind is not blowing. A new study by ...

How to get more free energy Other than the links above, the best way to get more energy is to complete daily challenges, which grant rewards including free energy. Next up, Special Events are a ...

To redeem your free energy links, ensure you’re using the Android or iOS device where you have the game installed. Clicking on any of the links listed above will open up the Animals and Coins ...