There's a fairly decent analysis from Lazard consulting on storage:
https://www.lazard.com/perspective/levelized-cost-of-storage...
It used to be part of their cost of energy analysis, but has recently been broken out:
https://www.lazard.com/perspective/levelized-cost-of-energy-...
But since these report aggregate information from previous years, they always feel out of date compared to watching the latest news.
Ramez Naam's forecasts are the most informed forecasts that I have found:
http://rameznaam.com/2015/10/14/how-cheap-can-energy-storage...
There's a fairly decent analysis from Lazard consulting on storage:
https://www.lazard.com/perspective/levelized-cost-of-storage...
It used to be part of their cost of energy analysis, but has recently been broken out:
https://www.lazard.com/perspective/levelized-cost-of-energy-...
But since these report aggregate information from previous years, they always feel out of date compared to watching the latest news.
Ramez Naam's forecasts are the most informed forecasts that I have found:
http://rameznaam.com/2015/10/14/how-cheap-can-energy-storage...