He's completely ignoring the effects on the grid, which will be huge. Batteries are also a complement to wind, for example. Here's one piece discussing that dyn

He's completely ignoring the effects on the grid, which will be huge. Batteries are also a complement to wind, for example. Here's one piece discussing that dynamic; there are many others at e.g. Greentechmedia.com. http://rameznaam.com/2015/04/14/energy-storage-about-to-get-big-and-cheap/ http://rameznaam.com/2015/04/14/energy-storage-about-to-get-...