This us why I consider sailing to be the best way of travelling the world: You're slow to begin with and the wind dictates your plans. You really don't want to be motoring. Instead you have time to experience the land, the people and the ocean. Preferably without being online constantly.
I'm wondering if using an electric caravan is a similarly good option for slow travelling on land. It would force you to you stop after less than 300 kilometers, unfold the solar panels on the roof, wait a day or two (perhaps also catch some rain using the roof) and then continue.
Another, less romantic option would be to recharge it somewhere faster ;-)
