Spinning Batteries – Flywheel Energy Storage

Flywheels are an alternative to deep cycle batteries or molten salt for storing energy that can be transformed into electricity. Flywheel energy storage works by accelerating a rotor (flywheel) to incredibly high speeds and maintaining the energy in the system as rotational energy, which is converted back by slowing down the flywheel.

Walmart Moves Closer To 100% Renewable Energy

The world’s largest public corporation by revenue, Walmart, is moving closer to achieving its stated goal of 100% renewable energy with the recent announcement to install rooftop solar power systems on five of its stores in Puerto Rico; with the potential for 23 stores over five years.