[Large] wind tubines by the side of the road can produce a lot of unreliable power efficiently. Transporting it to urban areas adds inefficiency to the unreliab

[Large] wind tubines by the side of the road can produce a lot of unreliable power efficiently. Transporting it to urban areas adds inefficiency to the unreliable. You need a fair bit of wind to get anything out at the other end. Solar voltaic has its own weird reliability issues but the panel does produce unusable amounts of power most of the day. (if your plan is to transport it) Good weight/kwh ratio batteries are expensive. If you can have the batteries roll along the power source for free the wind and sun could be offered very cheaply. Wireless I dunno, overhead cables or contact rails in the road seem fine. Still costly but reasonable. Pondering this it struck me how wonderful this ancient tech is. https://www.rac-info.nl/lv/images/lvtrekschuitenpaard.jpg https://www.rac-info.nl/lv/images/lvtrekschuitenpaard.jpg Its A horse pulling a boat! We could put rails by the side of the road with drones on them (mechanical horses) hook up any old clunker by its towing ring, cut dramatically into fuel consumption, reduce tire wear and get rid of much of the driving idiocy. It gets more spectacular where you can dump mechanical energy into vehicles while it is available. I have no idea at what speed conventional cars are still usable but I see far less need for a speed limit if everyone drives in formation. If someone hits the breaks the drone can detect it and slow down the car behind it. Perhaps 2 cables, one at the front and one at the back. Charging the battery over cables gets pretty obvious at this point. (there is regenerative breaking too!) To add a final bit of hilarity: If we stop gluing batteries into appliances (ffs?) fit them to the bottom and make them easy to swap by driving over a swapping station... then the fully charged battery is more valuable than the empty one. This can drive the cost per km down below zero.