Though often lumped together under the term “energy storage,” the field is in fact a wide range of technologies ranging from well established to speculative, each with different functions, advantages, and drawbacks. The discussion below focuses on existing grid-scale (greater than 1 MW rated power) projects and is generally ordered by level of deployment.
Wow, this article was written in August! “Snow? You want to talk about SNOW?!”
This is due to the albedo effect, which is the diffuse reflectivity, or reflecting power, of the surface. The whiter the surface the more sunlight is reflected off it (it is for this reason that skiers can get snow blind, and badly sun burnt when out on the mountain).