191–200 of 394 posts
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Weirdly, the latest iPhone + iOS pops a dialog box saying it will do this. // Weird given tiny amount of energy for your iPhone. But perhaps reasonable in aggregate.
LOL. This is classic “virtue signaling.” Your iPhone battery is not even a rounding error on your electricity consumption.
Good move.
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So your solution to some people having an easier time charging is to make it worse for everyone?
There are people who suggest banning private schools so that the wealthy and powerful will be incentivized to improve public schooling. GP seems to apply the same logic to EV charging.
>We're doing it wrong, according to a new Stanford study Wrong according to what metric? Cost? Raw efficiency? A lot of people are more than willing to give up efficiency so that they don't have to actually worry about finding a station during the day. To say that something is just outright "wrong" based on their personal preference of priorities comes off as unhelpful to me. The solution is simple. Make electricity…
> The solution is simple. Make electricity cheaper when it's more available From the parts of the world I come from the majority of people are vehemently opposed to time of use pricing. Because that's when they use it most. They and their political representatives would much prefer to keep taking from those who consume in off-peak rather than fix the underlying mechanism.
Unfortunately most people don’t care (or the technology to take advantage of it just isn’t there), and demand shifted less than 1% over several years.
But it’s hard to find this info, because it doesn’t fit the (expensive to implement) narrative of “let them pay market price and people will respond to incentives”.
https://www.cbc.ca/news/canada/toronto/smart-meters-hydro-bi...
> The Environmental Commissioner of Ontario's 2015-16 Energy Conservation Progress Report found "a 0.7 per cent reduction in peak demand among residential customers" attributed to time-of-use pricing over a four-year period.
I mean, people keep their foot on the gas when the light ahead is red and sometimes even speed up to get ahead of you only to slam on their brakes.
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This source ( https://batteryuniversity.com/article/bu-412-charging-withou... .) says efficiency is only 75-80% when charging inductively. Do you have any better sources for those 90%?
Remember, when you charge your cell phone, you charge at ~15W (or less), so 80% efficiency is something like 3W of power loss. You can dissipate that pretty easily. For a car charging, you're charging closer to 7-11kW. Dissipating 2.2kW (20% of 11kW) as heat is basically impossible. The inductive charging they're using for cars (which, are basically mostly prototypes at this point) are different and use much more clo…
(Doesn’t help that 99% of people run a case on their phones, and I doubt the manufacturer’s inductive charging efficiency tests account for that)
>We're doing it wrong, according to a new Stanford study Wrong according to what metric? Cost? Raw efficiency? A lot of people are more than willing to give up efficiency so that they don't have to actually worry about finding a station during the day. To say that something is just outright "wrong" based on their personal preference of priorities comes off as unhelpful to me. The solution is simple. Make electricity…
Oh, so just solve the problem that people since Edison have been trying to solve.
So simple!
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The logical conclusion is to try to get away from needing to drive to work at all.
Right? Then it becomes trivial to charge at home, during the day (if that really does make an impact).
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Weirdly, the latest iPhone + iOS pops a dialog box saying it will do this. // Weird given tiny amount of energy for your iPhone. But perhaps reasonable in aggregate.
Nice. I’ve also wanted my phone to tread water and not add charge while I’m driving. Dumb dumb to use a gasoline engine’s generator to charge it, but I don’t want it to go dead either.
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LOL. This is classic “virtue signaling.” Your iPhone battery is not even a rounding error on your electricity consumption.
If all iPhones do this it will matter. Charging when energy is plentiful also means that electricity is more likely to come from renewables.
No it won't. An phone has around 5 watt hours. So: 5 watt hours / day * 150 million people * 365 days = 273GWh / year / 4,116 billion kilowatthours / year = 0.006651% of electrical usage.
Yah, it's virtue signaling, not anything real. And keep in mind 0.006651% is total electrical usage - this time shifting might save 10%, so actual savings are even less than that.
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For the small amount I consume, tiny potential savings are not worth the mental hassles. I switched a residence to flat rate to avoid these mental games.
It's probably worse for poor people, that already deal with the extra cognitive load on every other pricing... But it's also probably best for poor people, that will optimize their usage and get better deals out of it.
Rich people can waste enormous amounts of electricity and not be financially affected. It benefits rich people to schedule running the two clothes washers and two clothes driers at off-peak rates. Poor people don't have energy fat like this to cut.