I bet you $1000 to a charity of your choice that utility scale batteries combined with renewables replace natural gas for electricity generation in the US in the next 10 years. I shall even assume all the risk. If I'm correct, you can buy me a coffee.
Rhetorical flourishes aside, I'd love for you to be right and I'm perfectly content to be convinced that you are. What specific technologies or materials will get batteries over this hump? Please don't say lithium-ion because although they seem OK for phones I can't seem to buy one for a power tool that will last a year.
