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JRP3

JRP3
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  • Axion Power Concentrator 197: Jan. 13: Axion Power PbC Batteries Continue To Demonstrate Effectiveness For Railroad Applications [View instapost]
    Electric car ferry uses 10 ton battery on board, and dump charges when docked from batteries on shore:
    http://bit.ly/VDJwMZ
    Wonder what they are using?
    Jan 13, 2013. 11:02 AM | 4 Likes Like |Link to Comment
  • Buy Tesla Motors: Think Of It Not As A Car Company, But As A Luxury Indulgence [View article]
    The average purchase price for cars in the US last year was $30,000.
    Jan 13, 2013. 10:26 AM | 1 Like Like |Link to Comment
  • My Tesla Pushback [View article]
    That article on sodium ion batteries is misleading. For one lithium is neither rare or expensive, nor is there much of it in a lithium ion battery, and the research on sodium ion is a long way away from a useable product that would be superior to lithium ion.
    Jan 13, 2013. 10:24 AM | Likes Like |Link to Comment
  • Axion Power Concentrator 196: Jan. 11: Axion Power PbC Batteries Continue To Demonstrate Effectiveness For Railroad Applications [View instapost]
    Any record of Axion talking to EnerSys? EnerSys makes a very good AGM, a PbC version might be a good addition to the product line.
    Jan 12, 2013. 10:21 AM | 6 Likes Like |Link to Comment
  • My Tesla Pushback [View article]
    Jonathan seems to want to ignore that fact.
    Jan 12, 2013. 09:38 AM | 1 Like Like |Link to Comment
  • Axion Power Concentrator 194: Jan. 6: Axion Power Residential Energy Storage Hub Certified To UL, CSA Safety Standards [View instapost]
    Since the car is not yet released obviously such data does not exist, which is why I said "should be lower". Yes it's speculative but firmly based in knowledge of the components and their behavior. The Spark EV is not so much heavier that tires and suspension parts are likely to wear significantly faster, (there are heavier vehicles on the road), and I'm assuming that GM knows enough about automotive electronics that they built a reliable BMS. It's not rocket science. The A123 cells should be good for over 2000 cycles, which is at least 160,000 miles. Yes I could be wrong and GM built an under designed piece of crap that will fail prematurely, but assuming they aren't trying to sabotage themselves they do have the ability to build a reliable vehicle.
    I know my home built EV is cheaper to operate than my ICE vehicles, even when put together with less than ideal components. I expect an OEM can do better.
    Jan 12, 2013. 09:22 AM | 1 Like Like |Link to Comment
  • Buy Tesla Motors: Think Of It Not As A Car Company, But As A Luxury Indulgence [View article]
    No, you just get to preheat the entire car.
    Jan 11, 2013. 09:34 AM | 1 Like Like |Link to Comment
  • Axion Power Concentrator 194: Jan. 6: Axion Power Residential Energy Storage Hub Certified To UL, CSA Safety Standards [View instapost]
    48,
    True the lack of mechanical coupling of the ICE would save some weight but that savings would have minimal effect on highway efficiency. Power required for sustained highway speed would vary depending on the vehicle but the main consideration is the efficiency loss from the ICE generating electricity and then running that power through the inverter and motor instead of directly driving the wheels. Obviously GM did the calculations and decided it was worth the added complexity and weight to use direct drive in some cases. However we know that trains don't use that technique so with heavier vehicles and/or different use patterns the series setup may be more efficient, or close enough that the added complexity of a parallel drive isn't worth it.
    Jan 11, 2013. 09:09 AM | 1 Like Like |Link to Comment
  • Axion Power Concentrator 194: Jan. 6: Axion Power Residential Energy Storage Hub Certified To UL, CSA Safety Standards [View instapost]
    Depends on the chemistry. I expect the A123 LiFePO4 cells in the Spark to last the life of the vehicle with only moderate degradation in capacity.
    Jan 11, 2013. 08:58 AM | 2 Likes Like |Link to Comment
  • Axion Power Concentrator 194: Jan. 6: Axion Power Residential Energy Storage Hub Certified To UL, CSA Safety Standards [View instapost]
    Rick,
    Talk about a rant. Why are you referencing numbers for the Model S, a luxury performance sedan, when I'm talking about the Chevy Spark? Operating costs should be lower for the EV Spark than the ICE Spark. I never said an EV won't get a chipped windshield or need tires, those costs will be similar, but fueling obviously will be much lower, which of course you know. You can also eliminate oil changes, and probably brake pads and rotors. Prius owners have proven the latter.
    Jan 11, 2013. 08:54 AM | 1 Like Like |Link to Comment
  • The burning question over how many Model S vehicles Tesla Motors (TSLA +0.5%) manufactured in 2012 might be answered if a parsing of the VIN numbers issued by the automaker can be trusted. According to anecdotal reports, the highest VIN number issued so far is #3383 - just above Tesla's latest guidance calling for 2,700 to 3,225 units. [View news story]
    VIN 3552 assigned yesterday according to TMC.
    Jan 11, 2013. 08:22 AM | Likes Like |Link to Comment
  • Axion Power Concentrator 195: Jan. 8: Axion Power Residential Energy Storage Hub Certified To UL, CSA Safety Standards [View instapost]
    Cui has been doing a lot of interesting stuff with batteries, hopefully one of his discoveries will actually make it into production someday.
    Jan 10, 2013. 09:40 AM | 1 Like Like |Link to Comment
  • Buy Tesla Motors: Think Of It Not As A Car Company, But As A Luxury Indulgence [View article]
    "If it leaches into the water supply, there are unpleasant psychotropic effects."

    Yes, depression levels drop. Seriously, if that's the best you can do you really shouldn't bother. People who own Tesla's use them every day, and they are much more practical than many of the other vehicles they previously used.
    Jan 10, 2013. 09:17 AM | Likes Like |Link to Comment
  • Buy Tesla Motors: Think Of It Not As A Car Company, But As A Luxury Indulgence [View article]
    I would, and I expect others would as well. I don't care much about bells and whistles, don't want a sun roof, just give me a fast, smooth, good looking EV. Base Model S still blows away most cars on the road, and when you look at operating costs it works out the same as a less expensive vehicle.
    Jan 10, 2013. 09:11 AM | 1 Like Like |Link to Comment
  • Axion Power Concentrator 194: Jan. 6: Axion Power Residential Energy Storage Hub Certified To UL, CSA Safety Standards [View instapost]
    Those laptop fires are old news and due to faulty manufacturing. Yes there are some different chemistries being used in EV's, many of them inherently safer than the LiCo laptop cells. Even so the original Tesla Roadster did indeed use standard LiCo laptop cells, with 2500 Roadsters in the world, 6831 cells each, that's 17,077,500 cells, no spontaneous fires or crash related fires, ever. We also now have around 3000 Model S's out there with an even higher cell count per vehicle. I think we are past the point where the lithium cell safety issue can be a factor. Initially I was somewhat critical of Tesla's cell choice and pack design but they've obviously proven me wrong.
    Jan 10, 2013. 08:58 AM | 1 Like Like |Link to Comment
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