You have to hand it to Elon Musk - he may have a weird name, and he may have made his fortune by creating the evil entity known as PayPal (in fairness, it only got really evil when eBay got their hands on it); but right here right now he's driving a one-company revolution in electric storage/EVs/etc. Sure, we can all snicker at the home sized Tesla battery; but this thing he's build in Australia is the model of things to come.
When we're all driving around in EVs, ever garage (gas station) in the land is going to need one of those things - not quite as big, granted, but still pretty big - to prevent grid overloads when rapid-charging EVs. Personally, i can't wait for EVs to become sufficiently commonplace that owning one ceases to be a "range anxiety" gamble, because you know even if it's not fully charged, you can top-up en route. I'd even buy one of those Tesla Model 3s, if they ever manage to make them in quantity. I'd like to retrofit my Jag XJ12 even more... and I can use the old 6 litre V12 in my racing car then.
For years, there's been dreamers (like me) of an electric future. Musk, love him or loathe him, is out there making it happen. Good on him.