• 3 Posts
  • 52 Comments
Joined 1 year ago
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Cake day: October 25th, 2023

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  • The photo shows the car getting a 16kW charge rate while driving at 5mph. So you could get 16kWh of energy if you drove on this kind of road for an entire hour, at 5mph. Pretty worthless.

    Or super great for EV’s in urban environments.

    Another application would be to run the wireless charging under the parking areas on urban streets and provide car charging for urban residents who use street parking.

    Great they are doing the study so we have a good idea of the costs and efficiency of wireless grid EV charging.


  • The fact that EVs use a few different systems (or a combination of them) really shows how early in the transition we are- manufacturers haven’t really settled on one “best practice” yet.

    Not a matter of “best practice” but where is the waste heat in Winter. Very little in EV’s so they will always be resistive heater 90% of the time. Waste heat assist runs about 10%. Those numbers are not going to change much. If anything the amount a heat pump can provide will likely go down as EV efficiency goes up and there is less waste heat.



  • Both vehicles are Zero emissions. Pick they one that fits your driving needs and taste.

    The “upstream” emissions are a kind of vague term to do with electricity production. They are not real emissions. Buy your EV, buy “Blue Sky” zero emissions electric power from your utility to charge at home and you will have zero emissions for your transportation.

    Upstream emissions are the emissions associated with the production and distribution of gasoline and electricity. This includes activities like feedstock extraction (e.g., drilling for oil or mining coal), feedstock transport to a processing plant, and conversion of feedstock to motor fuel or electricity, and the distribution of the motor fuel or electricity. Electricity emissions depend on the mix of feedstocks used to generate electricity in your region. Though not displayed in the graphic, pipeline distribution of crude oil and gasoline also contributes upstream CO2 emissions and is included in the upstream emissions estimate.




  • 18 shipped is not exactly “available”. IF you could buy a 400 mile, $105k Silverado it would be same price as Rivian R1T rated at 400 miles. Even with the wings, the bed is bigger in the Silverado than the Rivian.

    GM has SuperCruise which is top rated safety tech. Dealer network offers more service spots.

    Difference is you can get a Rivian R1T from stock but Silverado will not be available for purchase until late '24 if then.








  • In my current car the blind spot alert is a mirror and turning my head.

    Good reason to make sure your next car has one of the top accident prevention safeties, the Blind Spot Information System (BLIS).

    Same for Rear Cross Traffic Alert.

    Each shows a 30% reduction in two of the most common accidents.

    Lane keeping alerts, which are weak in Tesla, sometimes giving an alert, sometimes letting the car drift into oncoming traffic, is another safety Tesla doesn’t do well, if at all.


  • Likely cheaper doing it with two motors vs. one motor and a transmission system to all four wheels. More weight, more friction losses, more stuff to go wrong and less control vs. two motor. Only plus would be larger motors are more efficient, maybe 5% between 2 x 100 and 1 x 200 motor?

    Could Subaru put a 200 HP electric motor in an Outback and run the wheels on the existing transmission?


  • “In my opinion, charging networks aren’t keeping up with the growth of EV adoption, particularly when so many drivers have free charging plans that incentivize them to reply completely on public charging for all of their needs.”

    Not the responsibility of private charging networks. They follow the money and it’s not in EV charging, except for Tesla, due to low volume. The EV charging would follow demand not lead it.

    It us up to government to fill in the “what needs to be done” vs. “what pays to get done”. And US government went big on just that issue in the BuildBackBetter/IRA bill with $5B for 500,000 public chargers over next five years. For perspective, there are about 500,000 gas pumps in the US. That build out over the next five years should match the EV sales goals.

    Oregon’s National Electric Vehicle Infrastructure Plan in response to the Federal NEVI program.