Interesting, but lacking economic support.
This is a very interesting article, and it's observations on scale up are interesting and informative. However, while Europe may have made a lot of progress toward a greener economy, the economics of that greener economy (actual costs) have not always been favorable, or competitive for it's citizens. Germany is a good example.
My wife is "from" Germany and her family are still there, so we have some insights at the citizenry level that a lot of "foreign journalist" don't don't. For example - even with Germany's rapidly expanding green economy, true unemployment (the gov. propaganda manipulates the hell out of the stats just like the US) is extremely high upwards of 30%, most 30 somethings that we know live with their parents, the middle class will never be able to afford to own a home, the often idolized German health care system is 30 years behind in both science and outcome wise compared to the states - especially at the social service ("free healthcare") level, and the comparable cost of living with that in the US is much higher. Which takes me to my point - just exactly what will the avg. European being paying per KVWH now and in their greener future? The EV/SG electrical system is very interesting and sounds like it might be a viable solution to the storage problems, but I note the usual and characteristic lack of economics so characteristically and sadly typical of alternative energy information.