While solar energy has undoubtedly expanded over the past decade, we will not be able to become fully reliant on it until there is a breakthrough in storage technology. We need to be able to efficiently and safely story large amounts of power, as well as be able to quickly charge batteries, in order to be able to fully rely on solar power. The ability to store immense amounts of solar energy is key in order for this energy to then be able to be distributed across the grid to meet given demand.