Not really, other than the prospect of Lithium-metal batteries and the breakthrough that the problem with the formation of dendrites in those battery types seems to be fixable.
I'm looking at energy supply in work at the moment. I'm getting 87kW of Solar in and I'm looking at Industrial battery storage as an alternative to having Generators on site for back-up so I've done a bit of research but nothing in depth.
I do know that if this country a move to 100% electric vehicles will necessitate a more than 100% increase in our generation capacity. I don't see how we can do that using renewables. Given the need for 40% extra capacity that's a serious amount of battery storage.
Ireland's total consumption is
25.68 billion kW hours a year. The biggest battery storage system in the world at the moment is the
Moss Landing Energy Storage Facility in California. It has a capacity of 1,600,000 Kw hours. With everyone running as EV we'd need around 50,000,000,000 kW hours. Batteries aren't going to help.