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JRP3

JRP3
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  • EV Myths And Realities, Part 1: The Battery Crisis [View article]
    There are too many problems with fuel cells and the lack of a hydrogen infrastructure to make them viable in passenger vehicles, in my opinion of course. I expect Li chemistry to rule for at least the next 10 years or more.
    Jun 13 02:36 AM | 1 Like Like |Link to Comment
  • EV Myths And Realities, Part 1: The Battery Crisis [View article]
    Don't forget that Tesla is targeting the luxury sedan and SUV market for the next two years but will then be coming out with a more affordable mass market vehicle. It's all part of the plan, progressing as expected.
    Jun 13 02:24 AM | 1 Like Like |Link to Comment
  • A speculative play on UQM [View instapost]
    I hope they aren't relying too much on CODA going forward.
    Jun 13 02:15 AM | 1 Like Like |Link to Comment
  • Recent Analysis From The Union Of Concerned Scientist Is Garbage. [View instapost]
    It's too early in the game to predict what businesses will provide what services, but even at this stage many places see a benefit in providing daytime charging at work, even if they charge for it.
    I do not agree that all over night charging is going to be from coal, though I do agree a significant percentage will be, for a while.
    Jun 13 02:01 AM | Likes Like |Link to Comment
  • Recent Analysis From The Union Of Concerned Scientist Is Garbage. [View instapost]
    No solid numbers, just the fact that there are so few fast charge stations in existence at this point in time and considering the known sub 40 miles per day average travel patterns no reason to use a fast charge station. Just consider how often you'd stop at a gas station if you could fill up at home, work, or the store, with much cheaper fuel, sometimes free.
    Jun 12 10:03 AM | Likes Like |Link to Comment
  • Recent Analysis From The Union Of Concerned Scientist Is Garbage. [View instapost]
    Glenn,
    Regarding this statement:
    "Natural gas would probably be preferred for "fast" charging (45 minutes), because it's difficult and wasteful for coal plants to ramp up or tamp down very quickly... so even though natural gas is far more expensive on a $/MWh basis, it is far more dispatchable, and therefore is a cheaper option for the power company for fast-response situations. However, when fast charging a battery the charging losses increase to nearly 25%. So a Nissan Leaf with a fast-charged battery would result in an additional production of 450.5 Wh of electricity. If we assume 610 g-CO2/kWh, then the total carbon intensity is ~274.8 g-CO2/mile."

    You seem to be assuming that any daytime charging of an EV will be fast charging. In fact I expect most daytime charging will be from low level opportunity charging at stores, malls, restaurants, work, etc, which would not come with the efficiency loss you calculate. Since I would assume most coal capacity is fully utilized in many areas during the day NG will provide the required energy for daytime charging.
    Jun 11 11:59 PM | Likes Like |Link to Comment
  • Recent Analysis From The Union Of Concerned Scientist Is Garbage. [View instapost]
    Regarding point 3, if someone builds a home that's an additional load on the grid. If they add enough solar to compensate for that load then the net effect is zero. You could say it would be better if they just set up that solar array on an empty lot and not built the house, but that is unlikely, the house is the driving factor for the installation of the PV array. Likewise the purchase of an EV could be the driving factor for additional PV to compensate, which would nullify the impact of that EV purchase. Yes they could have added more PV and bought a Prius, but that is less likely to happen. People like to say they are driving on sunshine, even if it's not exactly true with a grid tied system. At some point the reality of human behavior needs to be taken into account.
    Jun 9 03:00 PM | Likes Like |Link to Comment
  • Recent Analysis From The Union Of Concerned Scientist Is Garbage. [View instapost]
    Part of the problem though is considering that the other choice besides an EV is always going to be a Prius or similar. Most Model S purchasers are in the market for sub 25mpg luxury vehicles.
    Jun 9 02:59 PM | Likes Like |Link to Comment
  • Recent Analysis From The Union Of Concerned Scientist Is Garbage. [View instapost]
    Some current closings may be from lower gas prices, but unless I'm missing something MATS is going to force a lot more closings, which are planned closings, not reactions to market pricing.
    Jun 8 09:00 AM | Likes Like |Link to Comment
  • Recent Analysis From The Union Of Concerned Scientist Is Garbage. [View instapost]
    Isn't the whole coal argument losing steam, (pun intended)? MATS looks to be taking a large number of coal plants off line by the end of this year and certainly by 2015. http://1.usa.gov/LeFYKx
    Here is a list just for PJM:
    http://bit.ly/LeFZ0N~/media/planning/gen-r...
    These are the oldest and dirtiest plants, with output likely to be replaced with NG.
    Jun 7 09:38 AM | Likes Like |Link to Comment
  • Recent Analysis From The Union Of Concerned Scientist Is Garbage. [View instapost]
    "so even though natural gas is far more expensive on a $/MWh basis"

    I thought coal plants have been shutting down because NG is now cheaper?
    Jun 6 09:56 AM | Likes Like |Link to Comment
  • Anti-Hype In Lithium-Ion Batteries Foretells Doom For Electric Cars [View article]
    A 2000lb EV is within the realm of possibility and it doesn't need to be a scooter.
    Jun 1 09:24 AM | 1 Like Like |Link to Comment
  • Anti-Hype In Lithium-Ion Batteries Foretells Doom For Electric Cars [View article]
    Of course some of you went completely off the rails. I never suggested everyone could or should do as I do, I merely used it as an example of how not using a "modern convenience" does not lead to a reduced level of lifestyle or great sacrifice, and in fact has it's benefits.
    To the specific point of burning wood, using already dead trees is effectively carbon neutral and hot fires in a stove with a catalyst does not produce large amounts of pollution. I guess Glenn would rather have me using the fuel oil furnace since my wood burning offends him.
    Jun 1 09:15 AM | 2 Likes Like |Link to Comment
  • Anti-Hype In Lithium-Ion Batteries Foretells Doom For Electric Cars [View article]
    Surf, supposedly Tesla has a solution for the roof rack question.
    Jun 1 09:03 AM | Likes Like |Link to Comment
  • Anti-Hype In Lithium-Ion Batteries Foretells Doom For Electric Cars [View article]
    Unless you live in Texas, where you can now get free, zero carbon, electricity over night.
    http://bit.ly/MexOW3
    That changes both the emissions and economics profile for EV ownership.
    Jun 1 08:41 AM | Likes Like |Link to Comment
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