You're right about that. Molten salt storage will even bring it down below the price of natural gas turbines used now.
However, even with all the projected improvements and price declines in recent years, solar still will not be enough to serve global energy needs in time to stave off disaster.
That's one of those words people throw around to make a point without making a real point. Are we talking 20%, 100%, 300%. And whatever the number, is it sufficient? Also, what's the timeline? A decade?
"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.
However, even with all the projected improvements and price declines in recent years, solar still will not be enough to serve global energy needs in time to stave off disaster.