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Post by bakerworld on Jan 17, 2024 10:18:22 GMT -5
We're a sunny 14F here in SEPA  and my toes are icy. |
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Post by helenabear on Jan 17, 2024 10:31:28 GMT -5
I think we're double digits now here too. We got lucky and the real vortex blast with -20 windchill did not occur. Just single digit weather in the morning. Sun is out and temps are supposed to rise more for a few days.
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Post by Adelard of Bath on Jan 17, 2024 11:25:27 GMT -5
Ridiculously, we are looking at 32 on Monday and 36 on Tuesday. Somebody didn't get the memo that it's January in Minnesota.
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Post by helenabear on Jan 17, 2024 12:53:32 GMT -5
Ridiculously, we are looking at 32 on Monday and 36 on Tuesday. Somebody didn't get the memo that it's January in Minnesota. That's insane! Though we are supposed to be in the 50s next week at some point I think. I'm afraid to look because the cold snap is returning and I'm afraid to see if it's blasting longer than I wanted  We did have school today, but quite a few others that were more rural with longer bus rides called off. We had a 50-50 shot last night I think of being closed today. However, as the night went on I saw we were not dipping really cold like they thought we would. |
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Post by brp on Jan 17, 2024 12:54:53 GMT -5
Ridiculously, we are looking at 32 on Monday and 36 on Tuesday. Somebody didn't get the memo that it's January in Minnesota. We are going to New Orleans next week and the temps on some recent days have been well within this range.
Cheers.
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Post by johnb on Jan 17, 2024 13:02:15 GMT -5
21, feels like 7. That's a "get the mail but otherwise stay inside" day.
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Post by helenabear on Jan 18, 2024 9:07:08 GMT -5
Still below freezing and more snow coming. Supposed to be bitterly cold again (though not as bad as way north gets). I'm just hoping it doesn't mess with getting something done to my car tomorrow. I'm really tired of winter already. I am a lousy Midwestern person  An interesting story I saw two days ago, was in Chicago how a lot of new Tesla owners apparently didn't understand that really cold weather will diminish the range you get. Apparently a bunch of Tesla owners were stranded and some even towed their car away because it was taking longer than usual for the charges to occur and they were backed up. As someone who drives an EV in the Midwest with decently cold temperatures at times, I have never heard of such a situation. Hopefully Tesla can create enough charging stations so that in cold weather there will not be an issue. Apparently the bigger issue is that there are more Teslas in certain areas than charging stations can easily keep up with demand. Apparently more Tesla owners rely on charging stations in that area and the average EV owner who charges at home. When it's that cold you cannot do the super fast charging when your battery is cold soaked making charging times longer than usual. And if you have more cars sitting waiting, it just makes it worse. |
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Post by stellabutterman on Jan 18, 2024 9:35:45 GMT -5
It's been cold all this week in SE Missouri, and I'm thrilled to say it will reach 33 degrees today!
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Post by Adelard of Bath on Jan 18, 2024 10:24:52 GMT -5
When it's that cold you cannot do the super fast charging when your battery is cold soaked making charging times longer than usual. And if you have more cars sitting waiting, it just makes it worse. And I bet like all the young people operating their cell phones, I'm sure they jump in the car in the morning thinking 15% charge is fine. There were lots of articles this summer about how Tesla over-estimates their range! hee hee. Another, mostly unrelated but somewhat related tidbit - letting batteries get down to the bottom all the time reduces their life, it's hard on them. Fast-charging is also hard on them. Cold is hard on them. Ooooh I just realized even better, is when people jump in these cars charged at 15% and it's cold, not only is the battery capacity reduced considerably, everyone fires up the heater without even thinking about the pure kilowatts that heaters burn. There's no magic technology in heaters in a Tesla - those same glowing coils that turned sliced bread into toast for our grandparents is what is making warm air in an electric heat situation. |
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Post by brp on Jan 18, 2024 10:33:48 GMT -5
When it's that cold you cannot do the super fast charging when your battery is cold soaked making charging times longer than usual. And if you have more cars sitting waiting, it just makes it worse. Ooooh I just realized even better, is when people jump in these cars charged at 15% and it's cold, not only is the battery capacity reduced considerably, everyone fires up the heater without even thinking about the pure kilowatts that heaters burn. There's no magic technology in heaters in a Tesla - those same glowing coils that turned sliced bread into toast for our grandparents is what is making warm air in an electric heat situation. I have an EV and do think about the heat all the time.As an EE I know about the power impacts of resistive heating. As I say, heat is free in an ICE. Not so much in an eV.
The Hyundai app is nice in that it will show me details on my last several trips, and this includes the total Wh for heat/cool as well as any regeneration.
Cheers.
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Post by WDWGoof on Jan 18, 2024 11:28:30 GMT -5
They were referring to that as a “robot graveyard”. Many were trying for days to charge, not hours. Everything was pretty much shutdown as all batteries there were dead from extreme cold.
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Post by helenabear on Jan 18, 2024 14:08:40 GMT -5
Ooooh I just realized even better, is when people jump in these cars charged at 15% and it's cold, not only is the battery capacity reduced considerably, everyone fires up the heater without even thinking about the pure kilowatts that heaters burn. There's no magic technology in heaters in a Tesla - those same glowing coils that turned sliced bread into toast for our grandparents is what is making warm air in an electric heat situation. I have an EV and do think about the heat all the time.As an EE I know about the power impacts of resistive heating. As I say, heat is free in an ICE. Not so much in an eV. The Hyundai app is nice in that it will show me details on my last several trips, and this includes the total Wh for heat/cool as well as any regeneration. Cheers. Mine has a heat pump. Not great in freezing cold. But still far more efficient than resistive heating alone. They were referring to that as a “robot graveyard”. Many were trying for days to charge, not hours. Everything was pretty much shutdown as all batteries there were dead from extreme cold. You know batteries can charge in the sub zero temps, right? My first week with my car it was below zeros for days. Anyway some reports were from the EV haters who actually spun it out of what was normal. The days you heard were people waiting for a charger to become available off and on. You cannot do fast charging on cold soaked batteries so people were jerks hogging for a full charge when they should make room for more. The end result is the infrastructure is not there for Tesla for the number of people who purchased the cars versus those who don't charge at home. Also the average Tesla buyer tends to be a different type of EV buyer than most EV owners. Those of us who researched and understand how batteries work, realize that our range is diminished somewhat in the winter. It sounds like Tesla drivers, who is known for having a horrible expected range estimation, were caught off guard. Really it came down to poor knowledge and lack of planning as well as not enough chargers in the area. This article actually was better representation and it was apparently not widespread www.npr.org/2024/01/16/1224913698/teslas-chicago-charging-extreme-coldSorry to say a couple reports were obviously meant for the anti-EV crowd. Poor reporting on some. |
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Post by brp on Jan 18, 2024 14:12:03 GMT -5
I have an EV and do think about the heat all the time.As an EE I know about the power impacts of resistive heating. As I say, heat is free in an ICE. Not so much in an eV. The Hyundai app is nice in that it will show me details on my last several trips, and this includes the total Wh for heat/cool as well as any regeneration. Cheers. Mine has a heat pump. Not great in freezing cold. But still far more efficient than resistive heating alone. Turns out mine does, too. Scavengers heat and doesn't rely on simple resistive. Should have guessed that they'd so something better than pure I^2R stuff. Thanks for the education here
Cheers.
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Post by helenabear on Jan 18, 2024 14:24:22 GMT -5
Mine has a heat pump. Not great in freezing cold. But still far more efficient than resistive heating alone. Turns out mine does, too. Scavengers heat and doesn't rely on simple resistive. Should have guessed that they'd so something better than pure I^2R stuff. Thanks for the education here Cheers. I have a thing for cars, so I looked up a ton before I purchased mine . Seriously it's been my most favorite car I've ever had. Interesting thing I noticed with the heat pump is that it seems to heat my car much faster than the good old resistive heating. When it is this cold here though, it's not very helpful and I do have to rely on the resistive heating, but overall like when it's 40 or 50° out it's perfect to have in a really great way to save some energy. I am not surprised that other EVs will have the heat pump as well. It actually makes me smile to hear the heat pump going when I start to heat up my car in a cold day. Reminder that I don't have to get into a cold car anymore LOL |
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Post by brp on Jan 18, 2024 14:35:35 GMT -5
Turns out mine does, too. Scavengers heat and doesn't rely on simple resistive. Should have guessed that they'd so something better than pure I^2R stuff. Thanks for the education here Cheers. I have a thing for cars, so I looked up a ton before I purchased mine . Seriously it's been my most favorite car I've ever had. Interesting thing I noticed with the heat pump is that it seems to heat my car much faster than the good old resistive heating. When it is this cold here though, it's not very helpful and I do have to rely on the resistive heating, but overall like when it's 40 or 50° out it's perfect to have in a really great way to save some energy. I am not surprised that other EVs will have the heat pump as well. It actually makes me smile to hear the heat pump going when I start to heat up my car in a cold day. Reminder that I don't have to get into a cold car anymore LOL
OK, so I have more to learn here.And I could look it up, but you seem to know the details. I just have a button for Heat, but not a way to select pump/resistive. Maybe this is a setting in the control panel? For me, it's just on/off and a temp setting.
I actually do like working on cars as well, ON my Saturn I've replaced Intake and Exhaust solenoid values to clear engine codes and the last time I did my own spark plugs and even got a torque wrench since I didn't have one.
But I did not research the details for this EV to that level. Fun to learn.
Cheers.
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and my toes are icy.
