"Most recently, Tesla landed a 500MWh grid storage deal with Advanced Microgrid Solutions‬. And, outside the U.S., others have taken notice. Italy's Enel Green Power SpA announced it will partner with Tesla for 1.5-3MWh battery storage, and, Ireland's Gaelectric Group entered into an agreement with Tesla Motors to build a 1 MW demonstration utility-scale project."
That article is over a year old. It sounds like slow progress, which is nice. However, given the timeline, I don't expect electric vehicles to be significant for at least another decade.