3 ms·
> If there there are a zillion EVs, which cleverly charge up when the spot electrical price gets low, then those free-or-negative prices for electricity - which
by flir 3y ago
> If there there are a zillion EVs, which cleverly charge up when the spot electrical price gets low, then those free-or-negative prices for electricity - which really seem to push people's buttons - will not actually happen.
That's desirable, isn't it? You're trying to get to a point where the demand curve matches the supply curve. You want there to an expectation that supply-peak energy is going to be worth something at some point in the future, even if it isn't right now. (Assuming we're doing this in the private sector, of course).
> I am not aware of either the electrical grid, or most current EV's & their charging hardware, being built to actually do this.
I think it's called bidirectional charging.
- pests 3y agoRight, but what EV supports bi directional charginf today without a $10,000 upgrade?
- flir 3y agoPersonally I reckon DC distribution in the home will catch on at some point. Keep the AC circuit for fridges and cookers, but shift everything else (TVs, computers, lights) on to DC. Not as comphrehensive as adding a DC-to-AC transformer to the system, and you won't be able to sell electricity back to the grid, but the hardware will be cheaper and avoiding the DC-to-AC step will increase efficiency.
- mikewarot 3y agoThat's a terrible safety hazard, DC arcs don't self extinguish, and DC high voltage tends to cause your muscles to hold on to the source. It's a horribly painful and slow way to die. --- append For low power dc loads, running completely separate DC circuits wastes a lot of copper for minimal theoretical benefits.
- flir 3y agoI'm willing to be convinced, but I'm talking about USB PD or similar at the socket (20V 5A). Would that be so dangerous?
- deleted 3y ago[deleted]
- edent 3y agoNissan vehicles often support it. Look up V2G (Vehicle to Grid). There ate several other models as well, with lots in experimental stages. But new cars are sold every day. So you don't need everyone to upgrade their vehicle. Deployment will happen automatically - just like USB-C charging on phones & laptops.