Arpit: Thanks for having me, Spiffy! The major hurdle between today and a clean energy future is our ability to store energy cheaply, and in large amounts. This is because sun and wind are not always present. Existing solutions do not scale and are expensive. This is known as long duration energy storage problem. Our technology scales to store and supply energy continuously for months in a cheap non-toxic "solid fuel". Once charged, it retains energy with zero loss in time, and can also be transported from one place to another where energy is needed.