I wrote up a little survey[1] of the on-the-ground installed energy storage landscape nearly 2.5 years ago now (when I was first learning how to make graphs outside of excel), and really not a whole lot has changed since then in terms of trends. Pumped storage remains the vast bulk of grid-level storage, and while we're still not building any new projects, there has been a fair amount of movement on the permitting front[2] this decade following the relative drought of the 90s and early 2000s. A few new battery projects have come online as well.
I feel like I've been reading about LightSail since I wrote that post (which feels like a lifetime ago, particularly looking at charts made in matlab, which I probably haven't touched in 2 years), and I hope it really does start showing up soon at small commercial sites and eventually with grid-level deployment, deployment of new electrical infrastructure tech is exciting!
I feel like I've been reading about LightSail since I wrote that post (which feels like a lifetime ago, particularly looking at charts made in matlab, which I probably haven't touched in 2 years), and I hope it really does start showing up soon at small commercial sites and eventually with grid-level deployment, deployment of new electrical infrastructure tech is exciting!
[1] http://btus.us/the-state-of-our-energy-storage/
[2] http://www.ferc.gov/industries/hydropower/gen-info/licensing...