I feel most of this cycle has been solved already. The only real challenge left is the mobile storage of electricity (= batteries). That is really not up to specs yet.

Other then that, we have all the technology we need.

Personally, I'm convinced we all have to accept to "do it" with less. We simply can't expect to drive an electric F150 with a 500 mile range over the next 50 years. Electic peddle bikes are in the cards however.

It is a totally different picture when we all need a 2.5 kg Li-ion battery pack for our daily transport or a 250 kg li-ion battery pack. (Basically, the difference between a 0.5 hp and 44 hp average over a 50 km/31 miles range).

And of course you simply can not propel a 2 ton SUV on a "0.5 hp over 50 km" daily ration.

You can however have a recumbent bike do 30 mph over that range with "0.5 hp over 50km/31 miles" including some 15 kg of cargo in your side bags or child seat.

Wouter