LW
I'm not suggesting that there is an out of the box, single solution that can replace oil - I don't think there is- yet. But we can reduce our reliance on oil, and we should do for more reasons than just political ones.
We are already seeing markets react to the need for efficiency; you can buy 3 cylinder, turbo-charged Fords with all the performance of "traditional" cars that produce less than 100g /l CO2. Pretty much all audis have regenerative technologies as standard.
If as a windy, rainy, rubbish-producing, tidal sea-surrounded country we can't see more opportunity for energy conversion to power our cities then we deserve to be held ransom by our suppliers.
I won't go into climate change.