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Plug-In Hybrids Aren't Coming, They're Here

Wired is running a story about the small but vocal, and growing, number of people who aren't waiting for automakers to deliver plug-in hybrids. They're shelling out big money to have already thrifty cars converted into full-on plug-in hybrids capable of triple-digit fuel economy. "The conversions aren't cheap, and top-of-the-line kits with lithium-ion batteries can set you back as much as $35,000. Even a kit with lead-acid batteries — the type under the hood of the car you drive now — starts at five grand. That explains why most converted plug-ins are in the motor pools of places like Southern California Edison... No more than 150 or so belong to people like [extreme skiing champion Alison] Gannett, who had her $30,000 Ford Escape converted in December. Yes, that's right. The conversion cost more than the truck."

9 of 495 comments (clear)

  1. A start by delirium+of+disorder · · Score: 4, Interesting

    I converted my POS gas car to a "mild" plug in hybrid: removed the alternator and added a deep cycle battery. I reduce the mechanical load on the engine by removing the alt. I have more power available for speed and acceleration and I get better mpg. I recharge the battery using solar and since I park outside at home and work, it gets plenty of time to charge. All the parts were originally for a full home solar system that I have yet to make space for, so there isn't any additional cost for the car conversion. Some data shows that you can get up to a 10% increase in efficiency by going alternatorless.

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    1. Re:A start by evilviper · · Score: 4, Interesting

      removed the alternator and added a deep cycle battery.

      That's a bit insane.

      Batteries are meant to give you just enough power to reliably start the vehicle, for good reason. Batteries are horribly inefficient, and generating electricity on the fly is much better all-around.

      Deep cycle batteries are expensive, large, heavy, etc., and no batteries last long when you're regularly charge/discharge cycling them.

      And safety would be a serious problem. Your headlights will be substantially dimmer, and continue to dim throughout your drive, and would very likely drain your battery completely in perhaps 4 hours. Might not be a problem for summer-only vehicles, not too far outside the tropics, but horrible for most people.

      I bet you could get comparable results, for very little money less money, by just putting a (heavy duty) diode with a 2-volt drop, on the alternator line. Then, it puts out 12V, and the battery is only maintained at about 50% charge capacity. Never any over-charging or wasted energy trickle charging.

      For a bit more money (but far less than solar panels and a deep-cycle battery) you could REPLACE your alternator with a fixed-magnet generator, at least doubling electrical generation efficiency.

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  2. Re:I'm not sure I'd call that being here by taniwha · · Score: 3, Interesting
    of course it's 'here' - when Mr Bell made the first telephones they were 'here' too ....

    You have to start somewhere - plugin hybrids weren't really even on anyone's radar before the various Prius hackers started making their own and getting press about it

  3. Re:DIY costs far less than $5k by kitgerrits · · Score: 3, Interesting

    Have you seen the cost of high-power batteries?
    Especially the ones that can survive the strain of driving electric-only (charge-drain-charge-drain)? try $3000,--
    Unless you own a Hybrid, according to Car & Driver

    "battery replacement will cost $5,300 for the Toyota and Lexus hybrids, and the Ford Escape replacements run a whopping $7,200."

    Also, someone needt to make room for those batteries somewhere in the car.
    The required equipment (for modifying the car itself) and man-hours also cost money.

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    "I was in love with a beautiful blonde once, dear. She drove me to drink. It's the one thing I am indebted to her for."
  4. Why the absurd fixation on batteries? by wierd_w · · Score: 3, Interesting

    If we are going to accept an absurd pricetag for these bad boys, why not skip the dreaded battery idea entirely, and use SuperCaps instead? APowerCap [ http://www.apowercap.com/?pg=2&lang=eng&rand=81001670 ] (is just one brand that) offers supercaps with internal efficiency ratings of over 90%. (Meaning, more than 90% of the energy used in the charging process is able to be used in a useful manner.) This far exceeds the internal efficiency of even LiON battery packs. Additionally, these devices can reach full charge in a matter of seconds when provided with wall outlet power, and can do so safely without overheating. They can also deliver more charge, more quickly, and more efficiently than chemical batteries. From a technological point of view, they are just all around better, AND (Surprise) they even have a better energy density to weight ratio then LiON. Why even bother with batteries with this kind of budget, when there are FAR superior storage solutions?

  5. Re:Efficiency by teridon · · Score: 4, Interesting

    It pains me that so many people drive cars larger than they really need, but consider this: A few mpg increase for a truck has much more impact than the same mpg increase in an already fuel-efficient vehicle.

    For example, let's say a truck gets 20 mpg. After doing simple things like checking the tire air pressure, driving conservatively (slowly), etc, it might get 25 mpg -- that's a 25% increase.

    But if you start with a car that already gets 50 mpg and you increase it to 55 mpg, that's only a 10% increase in efficiency.

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    I hold it, that a little rebellion, now and then, is a good thing. -- Thomas Jefferson
  6. Re:Efficiency by electrictroy · · Score: 3, Interesting

    Well according to environmental group ACEEE.org, an EV1 car is no more clean than a Prius or Civic Hybrid. (On a hundred-point scale, they score 52, 53, and 51 respectively.) So the grandparent poster was correct that simply switching to electric does not automatically create a cleaner car.

    As for ICE efficiency, Toyota says their Prius gasoline engine achieves 40% and Volkswagen determined their 3-cylinder Lupo diesel engines are at 50%.

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    The government is not your daddy. Its purpose is not to raid middle-class neighbors' wallets and give it to you.
  7. Re:Whole lot of stupidity by Muad'Dave · · Score: 4, Interesting

    The idea behind plug-in hybrids is to make the electric motor the big engine and have a small gasoline motor who's only job is to charge the batteries when they get low.

    I've always wondered if having a regular gasoline engine to turn the generator is as efficient as a small turbine. Supposedly turbines are most efficient at constant speed/load, which the generator would be. Anybody have any hard numbers?

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  8. Re:Will we do nothing to escape the fantasy? by reovirus1 · · Score: 4, Interesting

    A lot of us already have. I've converted my crappy mountain bike to electric and have been commuting to work on it for the past year. It does 50km/hr without peddaling, uses batteries out of dewalt drill packs bought off of ebay for reasonable prices and a simple hub motor. It goes in the rain, through snow with studded tires and is much faster than driving my car in traffic to work. Costs 5 cents a charge. I save 5 bucks a day in gas and 25 bucks a day in parking. And I've got this stupid grin on my face most of the day because it really is so much damn fun! I can even pedal if I want and get some exercise.

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