7 ms·
That’s how we do it in Denmark. We have hourly prices on electricity, so for me it’s cheaper to start the dishwasher outside peak hours. In some areas they are
by dybber 4y ago
That’s how we do it in Denmark. We have hourly prices on electricity, so for me it’s cheaper to start the dishwasher outside peak hours. In some areas they are experimenting with car chargers hooked up to this electricity price info, so it charges when it’s cheap.
- Terretta 4y agoWeirdly, 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.
- zaptrem 4y agoCan you give an example of this? I haven't seen it mentioned before.
- dybber 4y agoI guess it’s this https://9to5mac.com/2022/09/12/ios-16-clean-energy-charging-details/ https://9to5mac.com/2022/09/12/ios-16-clean-energy-charging-...
- spoonjim 4y agoLOL. This is classic “virtue signaling.” Your iPhone battery is not even a rounding error on your electricity consumption.
- dybber 4y agoIf all iPhones do this it will matter. Charging when energy is plentiful also means that electricity is more likely to come from renewables.
- ZeroGravitas 4y agoSteve Jobs famously once compared speeding up a boot process by 10 seconds to saving a dozen lives: https://www.folklore.org/StoryView.py?story=Saving_Lives.txt https://www.folklore.org/StoryView.py?story=Saving_Lives.txt
- ars 4y ago> If all iPhones do this it will matter. 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.
- KennyBlanken 4y ago[flagged]
- spoonjim 4y agoNo. Do you celebrate programmers fixing 1 in a million cosmetic bugs when the software crashes on boot and deletes the user’s disk?
- parker_mountain 4y ago"150 million people" There are over a billion iPhones in use worldwide. This technology is also being brought to MacBooks (100 million+), Watches (100 million+), and iPads (150 million+). Your fundamental numbers are staggeringly inaccurate. And, most crucially, representing it as a whole of the electric usage instead of peak hours intentionally misses the point of reducing peak hour usage. It's called "peak hour" for a reason.
- Stupulous 4y agoThey're using US numbers both for iPhone count (which they overestimate by ~40 million) and total electricity. That should bias their estimate against their point, as the US is particularly consumerist. Correct me if I'm wrong, but I would think that measuring as a fraction of total usage would also bias their result upwards- x/avg(y) > x/max(y).
- tsimionescu 4y agoAnd the total worldwide use of electricity is 22,848 TWh/year, (according to the IEA [0]). So that would be 5Wh/day * 1 billion phones * 366 days = 1,830 TWh = 0.0008% of world electricity consumption. Getting data about peak hour usage is much harder, but I would wager it's at most as much of that. So yes, completely insignificant at a large scale. If anything, the biggest impact will come to individual consumers, if and when electricity prices start varying more widely across times of day. [0] https://www.iea.org/reports/electricity-information-overview/electricity-consumption https://www.iea.org/reports/electricity-information-overview...
- jerlam 4y agoPhones are rarely plugged in unless the battery is dead. This strategy actually works with laptops though. I know that one company set up all their laptops to stop drawing power from mains and run from the battery at peak hours, even though it was still plugged in. This was for cost savings and not for environmental ones, but the same strategy would work.
- kortilla 4y ago> Phones are rarely plugged in unless the battery is dead. ??? Most people I can think of charge there phone as part of their nightly routine.
- Scoundreller 4y agoHelps further centralize/converge appliance control into the iPhone. Good move.
- JohnFen 4y ago"virtue signaling" is doing something useless in order to make yourself look good to a particular group. Could it be that this isn't "virtue signaling", but rather people overestimating the impact of the action? In other words, an honest (if mistaken) attempt at doing a good thing rather than just wanting to be perceived as doing a good thing?
- spoonjim 4y agoI think many virtue signalers are earnest and think that Tweeting #BLM or other useless actions are actually useful.
- JohnFen 4y agoIf someone is doing something because they think it makes a real difference, then it's not virtue signaling by definition.
- kortilla 4y agoThose are orthogonal. You can either think something helps or it doesn’t and virtue signal in either case. It’s right in the name. When you “virtue signal”, you are signaling morals to a wider audience. It’s “virtue signaling” regardless of conviction.
- jholman 4y agoI think you didn't read @JohnFen carefully enough. If the reason I am doing something is that I believe it will create results independent of being seen to have done it, I am not virtue signalling. Which is what @JohnFen said. Conversely, if the reason I am doing something is because of the signalling value I believe will be attached to the way others see my actions, I am virtue signalling. Which is what you said.
- nikau 4y agoVirtue signalling is typically something easy with no real inconvenience to the person doing it. So doing a #supportsoupkitchens on a twitter repost vs actually going and volunteering at one.
- TEP_Kim_Il_Sung 4y agoMore like product placement.
- parker_mountain 4y agoVery short sighted to think it's about "your" individual power consumption. There are over a billion iPhones in use today. Assuming 10% of them get charged during peak times, each one shaving a watt off of its peak is 100000 kilowatts of load reduced from the energy grid. Considering the number is probably a lot higher, and the load reduction a lot greater, my estimate is probably pretty conservative. And then further consider that this is being rolled out to iPads, Macbooks, and Apple Watches as well. It starts to add up!
- morsch 4y agoIt's still a rounding error, 100MW is 0.003% of the average global electricity generation. It's probably still worthwhile doing, especially if sets a trend for other categories of devices. https://www.wolframalpha.com/input?i=100+megawatt%2F%2828500+terawatthours%2Fyear%29+as+percent https://www.wolframalpha.com/input?i=100+megawatt%2F%2828500...
- Scoundreller 4y agoNice. 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.
- neuralRiot 4y agoYour car probably wastes more power heating all the wires on it than charging your phone.
- midasuni 4y agoThe iPhone 13 pro max has a battery about 17Wh. A typical car uses 330 Wh per mile. Charging your phone from flat will cost you about 90 yards in range. At the most expensive electricity on the planet of about 70c per kWh it will cost you about 1c.
- Scoundreller 4y agoThat’s probably what electricity costs in gasoline from a car’s alternator. I’d like to keep that 1c tyvm.
- Retric 4y agoEngine > alternator > rectifier > wireless charger > battery isn’t particularly efficient so you could be looking at closer to 2c/charge depending on setup and gas prices. Still trivial compared to an iPhone.
- nicoburns 4y agoiPhones do it to help preserve battery health. Slower charging is better for the battery, as is being near the middle of its charging range.
- ldrndll 4y agoThis is different to optimized battery charging. As of iOS 16 (in an as yet unreleased point version) Apple plans to add support for clean energy charging, which will charge your iPhone when the grid has a cleaner mix of energy. I think this is US only to begin with.
- jjtheblunt 4y agomy 2014 BMW i3 could be set to start charging when electricity was cheap (defined by me onscreen). it was a little buggy, as far as systems go, but it was the original model year (for north america, i think 2013 in europe).
- parker_mountain 4y agoA lot of newer charging stations in the US also have this built in, as well. You can hook them up to the internet, or do it manually. How mine works is pretty clever: you plug it in, and it asks you if you'd like to go to 100% now or wait until charging is cheaper. If you don't reply, it will fast charge your car to about 40%, and then wait.
- jjtheblunt 4y agothat's EXACTLY the oversight in the 2013-2014 onboard firmware : even though i didn't need a full charge at 8am, the car would realize it couldn't get to (the not important) full charge by 8am, which was the previous day time of departure, and would start charging while electricity was still expensive, because it decided maximal charge at previous day departure time was more important than cheap electricity. Just an oversight...
- aksss 4y agoSounds like a software/firmware fix. Did they never adjust that logic? queue my hatred for automotive closed ecosystem abandonware
- jjtheblunt 4y agoNope, but perhaps in later model year software builds.
- nomel 4y agoFor me, it's $0.67/kWh in peak hours, and $0.12 during super off peak (12am to 4am). I will, obviously, continue to charge at night. All electric cars, that I'm aware of, and most charges, have scheduling built in.