No energy is free because there is always installation and maintance cost. Lot's of people change their cars off solar. Most of a car's life is sat parked for hours. So slow is fine. My charger has a solar divert function I'm yet to get the solar for. Also, you change a house battery slow and then a car fast from it. Even here in the UK there are people doing it. Not solar all the time, but a lot in summer. House battery changed when your in the office, car overnight from that.
jabjoe
joined 1 year ago
As it should be really so you can repair things.
Right now, it doesn't seam like we energy to waste. Not until all the energy is clean. Also, it's always going to be cheaper to use a lot less energy. Until energy is free, which it isn't even with renewable because of install cost and maintainance cost.
Your right in that cryptographic verification only can prove someone signed the video. But that will mean nutters sharing "BBC videos", that don't have the BBC signature can basically be dismissed straight off. We are already in a soup of miss information, so sourcing being cryptographically provable is a step forward. If you trust those sources or not is another matter, but at least your know if it's the true source or not. If a source abuse trust it has, it loses trust.
Look at the efficiency of the energy conversions. It is literally wasting solar.
Yep. H2 cars are pushed by the ignorant or the corrupt (oil money).
I know nothing about Japan's grid. How it different?
Once people get used to cryptographical signed videos, why only trust one source? If a news outlet is found signing a fake video, they will be in trouble. Loss of said trust if nothing else.
We should get to the point we don't trust unsigned videos.
You don't need to rebuild the whole grid. The power over night goes up, but that's OK because night is currently very low usage. Sometimes that has meant turning off renewables as there is no where to put the power. In fact, this can cause negative power costs were they will pay you to take power! So next is where you need it, say a charging forecourt. But that is only during the day, so put in some huge batteries you charge over night. Top up with day time renewables if you can. All this already happens.
That is a waste of solar. It's more efficient to put in batteries then kinetic. If there is no more batteries to put it in, you transmit the power over wires.
With hydrogen it's wasteful to create from electricity, then wasteful to turn into kinetic. Its wasteful to store as it's the smallest atom so escapes easily, it's low density so needs compressing. Then, to move it, you have to move storage around instead of just transmit over wires.
It is somewhere to put energy, when you filled the efficient storage. But that doesn't make it good for transport.
Land use is the issue with e-fuels. It requires land used for food production or nature. Lots and lots of it. It can't scale. It will be just for keep classic ICE cars. Unless it can be done in vertical farms. Or we just keep it simple and use electricity and batteries.