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User: amorsen

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  1. Solar is great and all, but it doesn't generate base power load well.

    Solar is better than base load production for areas with little summer/winter difference, because solar produces power during the day when it is needed -- unlike nuclear which produces half its power when no one needs it at night.

    The problem with solar is known as "winter".

  2. Re:Hundreds of billions? on Germany Exports More Electricity Than Ever Despite Phasing Out Nuclear Energy · · Score: 4, Insightful

    0.17% isn't much though. That is probably less than the area of Germany taken up by maize grown for biogas, and that certainly doesn't provide 16GW average.

    Also note that the array will actually be more than 100GW peak, and peak will be during daytime when the heavy industry is running.

    It is also slightly unfair that you expect 16GW yearly average. 16GW of nuclear power does not provide 16GW average, because the demand just isn't there at night or during weekends and downtime for inspections can be lengthy.

  3. Re:How does their per-capita on Germany Exports More Electricity Than Ever Despite Phasing Out Nuclear Energy · · Score: 1

    Nobody likes to buy something with a B on it when you can spend a bit more that says A.

    Sadly that one has been subverted by industry. A is quite bad and for many things even A++ is not state of the art. The scheme has been made obsolete in just 5 years. We can keep adding pluses of course, but most people just go for A, thinking that A must be good.

    I believe refrigerators and tumble dryers are the worst offenders right now. If you buy an A-rated one, you are using at least twice as much energy as you need -- and tumble dryers all the way down to C still on the market.

  4. Re:How does their per-capita on Germany Exports More Electricity Than Ever Despite Phasing Out Nuclear Energy · · Score: 2

    Why should he be ashamed? He pays for it... Not everyone needs to set their AC to a setting you agree with.

    Because he doesn't pay for it. His energy use has negative externalities which we all pay for.

  5. Re:Could we hear some Germans tell this story? on Germany Exports More Electricity Than Ever Despite Phasing Out Nuclear Energy · · Score: 1

    You could easily cut the air conditioning bills dramatically just by insulating. Houses in the US are just crap. Even worse than England, unbelievable as that may seem.

  6. Re:What's all this "purity of vinyl" crap? on Mike Storey and His Plate Reverb (Video) · · Score: 2

    Surely if the ear cannot hear the original two frequencies, it won't be able to hear the difference tone if it is a psychoacoustic phenomenon? And then it doesn't matter that the equipment cannot record or play back those frequencies.

  7. Re:don't for get the $200 oil change at there deal on Elon Musk Will Usher In the Era of Electric Cars · · Score: 1

    Yes sure, you will do regenerative braking when you can. But you still need an emergency system, and the current hydraulic brakes work quite well. Most electric cars cannot apply 1g of deceleration from full speed using just the regenerative brakes, so they cannot do without . I doubt there are any production electric cars which can do that.

    Brake pads should live a long time...

  8. Re:don't for get the $200 oil change at there deal on Elon Musk Will Usher In the Era of Electric Cars · · Score: 2

    ... and the gearboxes are lubricated with unicorn tears, while the hydraulic systems use dragon's blood because of the higher boiling point.

    Pure electric cars don't need gearboxes. Hydraulic brakes likely won't go away soon, but electric power steering is rather popular.

  9. Re:10 % better than Windows on Nvidia Doubles Linux Driver Performance, Slips Steam Release Date · · Score: 1

    It is not exactly the first time that Linux has beat Windows at frame rate. So far the influx of hardcore gamers has failed to materialize.

  10. Re:304.10 won't build against the 3.7 kernel sourc on Nvidia Doubles Linux Driver Performance, Slips Steam Release Date · · Score: 1

    I totally agree with that sentiment. If the kernel boys aren't going to offer some binary compatibility between versions then Nvidia should just write a wrapper for the kernel that calls into the proprietary driver internals.

    Guess how the Nvidia driver already works. AFAIK it has always worked that way. The shim will never be accepted upstream though.

  11. Re:Car of the year my ass.... on Tesla Model S Named 'Car of the Year' · · Score: 1

    240V in the US DOES consist of 2 wires, each 120V offset from neutral and in opposite phase. The US insists on only allowing 3-phase to be called anything with phase, but that is just wrong -- apparently phases that aren't in 3-phase are supposed to be called "legs". Anyway, with typical US 240V and assuming a purely resistant load: At any particular point in time, the voltage of one line is exactly the opposite of the voltage on the other when compared to neutral. That is the definition of being in opposite phase.

  12. Re:Car of the year my ass.... on Tesla Model S Named 'Car of the Year' · · Score: 1

    Which part are you disagreeing with?

  13. Re:yet another solar tech not available to the pub on Solar Panel Breaks "Third of a Sun" Efficiency Barrier · · Score: 1

    The population is unlikely to double.

  14. Re:yet another solar tech not available to the pub on Solar Panel Breaks "Third of a Sun" Efficiency Barrier · · Score: 2

    You are at least 5 years out of date with that information. Traditional condensing dryers are obsolete, modern ones use heat pumps and are vastly more efficient than vented dryers.

  15. Re:Space based energy collection on Solar Panel Breaks "Third of a Sun" Efficiency Barrier · · Score: 1

    Stefan–Boltzmann says that the radiation from a black body is proportional to the fourth power of its temperature. You would have to add a lot of energy to make any significant difference to temperature.

  16. Re:Car of the year my ass.... on Tesla Model S Named 'Car of the Year' · · Score: 1

    Maybe you mean 240V, like the entire of Europe? Just get a step-up convertor.

    Good luck with that at 70kW...

    Besides, 240V sockets in the US are not the same as 240V sockets in Europe. 240V in the US consists of two wires, each 120V offset from neutral and in opposite phase.

  17. Re:Car of the year my ass.... on Tesla Model S Named 'Car of the Year' · · Score: 1

    That's of course the weird thing about being called car of the year. It needs the byline "for its target market".

    It doesn't need that byline. "Car of the year" doesn't mean "everyone buy this particular car". This must be the first time you have heard of a car being called "car of the year"; otherwise you would no longer suffer from that misunderstanding.

  18. Re:You can buy an EV today at affordable price on Tesla Model S Named 'Car of the Year' · · Score: 1

    So, your electric car doesn't have brakes and suspension? What about when the tires wear out and have to be replaced?

    Brakes on electric cars are rarely used -- depending on driving style of course, but you should let the regenerative braking do most of the work.

  19. Re:Canadians are out of luck! on Tesla Model S Named 'Car of the Year' · · Score: 1

    It is a performance car. Did you really expect it to be front wheel drive? Besides, get yourself some snow chains if snow is that bad where you live.

  20. Re:American concept of pricing? on Tesla Model S Named 'Car of the Year' · · Score: 1

    If you are buying a $80k car, it probably isn't the only car in your household.

  21. Re:Exactly. 78k is luxury territory on Tesla Model S Named 'Car of the Year' · · Score: 1

    tl; dr: If forced to, I could live with the pricing now for luxury I don't want; if they could afford to create a comparable middle-class version, it would be a no-brainer for me and I'd buy one *right now*.

    Cutting out the luxury has been done by every other electric car manufacturer. As it turns out, cutting the luxury only saves perhaps $10k. After that you start cutting necessities, like reasonable performance and heating and range.

    I have recently compared the cost of batteries for saving solar power. Buying a Tesla Model S and taking the batteries, throwing the actual car bit away, is actually cost competitive to buying batteries off-the-shelf. I do not know how they achieve such amazing pricing, but they must have a fantastic deal with their battery supplier.

  22. Re:Exactly Re:Exactly. 78k is luxury territory on Tesla Model S Named 'Car of the Year' · · Score: 1

    Well, why aren't they charging for the pollution caused by petrol cars? Transportation related pollution is estimated to cost $80 billion a year in the US, yet road taxes bring less than a third of that.

  23. Re:Operating cost are illusory on Tesla Model S Named 'Car of the Year' · · Score: 1

    The lurking problem here for pure electric uses is that no mechanism exists (yet) to add the road maintenance cost to the fueling (electric) costs of running an electric car, or a hybrid running on electricity from the wall (electricity from the gas engine is covered -- we pay for it when we fuel the gas engine.) Because of this, the actual running cost of electric-from-other-than-petro operation is being vastly underestimated, or perhaps "put off" is a better term.

    If you assume all the gas tax goes to road maintenance, there is nothing left to pay the pollution cost. You can equally well say that the actual running cost of petrol operation is being vastly underestimated.

  24. Re:Exactly Re:Exactly. 78k is luxury territory on Tesla Model S Named 'Car of the Year' · · Score: 1

    BMWs and Porsches are dead common. Tesla is different and rare, and the Roadster is known by practically everyone who cares enough about cars to think of buying a Porsche.

  25. Re:20k electrics on Tesla Model S Named 'Car of the Year' · · Score: 1

    Anyone know how the Tesla does on steep hills?

    It will do absolutely brilliantly, it has 362 hp...

    I'm sure there is some regen on the way down, but don't think it's all that efficient??

    Compared to a petrol car which has zero regen? You probably won't get the listed 300 miles range in hilly terrain, but your commute is unlikely to be 300 miles.