>what mileage of your Highlander are you so happy with and how much extra weight can you carry in it ?
My Highlander originally got 30mpg in the summer and 28 in the winter, now gets 28 summer 27 winter. Supposedly a hybrid gets better mileage city but I've never seen a difference more significant than the winter/summer difference. Theoretically an ICU should become more efficient in the winter (that Carnot cycle again) but it's my understanding that all hybrids do better in warm weather. I am not sure if the slight decline is natural or the result of my changing tires, as the Highlander supposedly does not come with anything special (my GF's mileage dropped 5mpg when she put cheap Uniroyals on her Prius).
I have 208 HP gas, plus 167 HP electric, plus another 68 HP driving the rear wheels in 4WD. The regular gas Highlander puts out 270 HP and is stated to get 20 city, 27 highway. You can do the math - nearly 450 HP available while getting about 8mpg better. I have the same towing and weight capacities as the gas model (edit: 3,500 pounds), although I will leave a gas model in the dust carrying or pulling a heavy load up any incline for about the first 12 uphill miles*; then the gas version gets the edge.
*Actually that depends on the status of my battery when the climb begins. The newer Highlander Hybrids have a mode switch that allows the driver to select this in advance so you can have a fully charged battery when the climb starts, but for mine it depends entirely on what sort of traffic I encountered right before the climb started.
>But unless you keep your vehicle for 200,000 miles, that extra mileage you get isn't going to cover the extra money you paid for the vehicle. They are not cost effective.
Well, that's definitely not true for me and the G/F, as we got in on the sweet full tax credit the first time around (the current credit declines as the manufacturer sells more vehicles, and you won't even know what the credit is until after the tax year closes). But I do see your point. However, I doubt you're calculating everything - for example, I have never had a tuneup (Atkinson cycles engines with programmable valve timing is entirely within software); I have never changed my brake pads (electric motor provides most of my stopping); I have no, none, zero, nada clutch/transmission/ torque converter to break/replace/wear out etc etc. Without the tax credit, you're still right but just barely. Interestingly, you are dead wrong about the 200,000 mile figure; the batteries are rated for 120,000 miles, I save about 1,000 gallons of gas per 100,000 miles over the gas version, and I will pay for new batteries about the same as the gas I save - the economic sweet spot is to hit 120,000 miles and sell it!
But in any event, you have if anything underscored my argument: unless you are a tree hugger and going for DRAMATIC mileage improvements - before changing tires my GF REGULARLY got 60mpg in the Prius - the reason for buying a Hybrid should be to get better mileage AND better performance, otherwise it is a boondoggle. We don't need fewer hybrids, we need MORE of them - cars and motorcycles that offer a compelling combination of both better mileage and better performance to make it worth the extra cost.
>I think huge factors in battery operated cars will be the cost of replacement, cost of battery manufacturing, and then...disposal.
Hopefully, as hybrids take off the issue with recycling the batteries will be better addressed, which will bring down the price of batteries as well. But I don't think the full lifecycle of these batteries are being really proactively examined by the government or the manufacturers. Vandave was talking specifically about electric vehicles but it's just as true of hybrids as well, and in particular plug-in and "mobile recharging" hybrids like the Volt which are going to have just as many batteries as a fully electric vehicle.
>So if you get a vehicle at 100 mpg and are buying less gas and thus paying less in gasoline taxes, you can bet Uncle Sam will increase gas taxes to compensate for "lost revenue".
Well, I'm not sure that's actually a cogent argument against HEVs. Suppose it is true: then you REALLY will want to have a high-efficiency vehicle when the government, in response to the reduction in gasoline use by all the tree huggers, tacks on all those taxes and suddenly it costs $400 to fill up your Excursion. Even if you're right, that actually sounds like a roundabout argument in favor of getting a hybrid NOW and beating the others out the gate.
>Are you also aware that solar panel high volume plants also need high volumes of H2O to run too ? The solar part is used to create steam, which is used to generate electricity, just like a nuclear plant.
Sorry, that's a misleading statement (I am a nuclear engineer). The steam generated by a solar panel - more correctly a solar concentrator, as distinguished from a solar voltaic panel which of course does not use any water - can be condensed and reused. The water in a nuclear plant carries away waste energy and is lost (the water actually used to generate the heat that makes the steam, if any - newer plants use other materials, such as brine and liquid Lithium - never leaves the internal circulation loop). The external water must be replenished because of a basic fact: ultimately the secondary water is being used to cool the reactor. In a solar application, water is used solely to create a working fluid (for it to be an equivalent situation, the water in a solar farm would have to be "cooling" the sun, which it is not). It is true that many solar farms release water and use plenty of it, but that's not a central technical requirement. Don't get me wrong, I'm all for nuclear energy, just pointing out that your statement requires qualification.
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Finally, I'd like to offer what I feel is a reasonable middle ground here. Michael Crighton once wrote that he wasn't convinced that the cry and hue over global warming was necesarilly scientifically valid; or if it was, that global warming was necessarilly caused by people; or if it was, that it was necesarilly a bad thing. "But," he continued, "just because I have doubts about global warming doesn't mean I think it's a good idea to keep dumping pollution into the atmosphere." Maybe we will run out of petroleum in 30 years, and maybe in a hundred. But:
- meanwhile while our cars and motorcycles continue to run on gasoline even though they can definitely run other power sources, our aircraft industry will be doomed as the price of fuel continues to climb. We can wait until we run out of gas for our cars and bikes and switch them to something else, but there is nothing else to switch our airplanes to...and think about the impact THAT will have on our economy and way of life.
- apropos to the late Mr. Crighton's argument, even if we could continue to run on oil for another hundred years does not necesarilly mean it's a good idea.
⚠️ Last edited by rjeffb on UTC; edited 2 times