My guess (and everyone from the bloke down the pub to Elon Musk is guessing to some extent) is that we'll see a mix of technologies in their appropriate niches ...... the batteries required to hammer a 40 ton artic from London to Inverness overnight have yet to be invented (and may be decades away or never) ..... probably AI organised electrified railways constantly looking at the available power on the grid from renewables and nuclear (hopefully sometime fusion rather than fission) shuffling driverless trains to optimise miles vs available power ..... fuel cell trucks to distribute from rail depots and electric rail and buses plus battery electric city cars and scooters for urban transit.
As Howard says ... energy use reduction will play as big a part as generation both in terms of low energy tech and lifestyle and social changes.
K
