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Comment Re:one in every home? (Score 1) 227

The price of batteries is quickly dropping and there are other battery types that show promise for grid storage such as liquid metal batteries. It sounds like the main bottleneck now is the seals to keep air out, otherwise the batteries should be fairly inexpensive and use common materials. This article describes where things are at with liquid metal batteries.

Tesla has said that their grid batteries use NMC, nickel, manganese, cobalt and lithium. Lithium ion batteries typically contain only 3% lithium. The cells should support 5000 charge/discharge cycles, or over 13 years with full daily cycling.. Of course the cells won't be fully cycled every day so they should have a very long life.

Lithium typically is less than 1% the cost of the batteries.

Ethanol for energy storage will be extremely inefficient, especially when one takes into account the costs and energy to:
1. Extract CO2
2. Filter the water to remove contaminants
3. Generate the ethanol
4. separate ethanol from water (which tends to be energy intensive since ethanol loves water)
5. convert the ethanol back into electricity

Liquid metal batteries and pumped storage are currently around 70% efficient. Lithium ion batteries are over 90% efficient. Using ethanol will be significantly lower. Batteries will also require a lot less maintenance.

The efficiency increase from using batteries would more than pay for itself long-term since this option also will likely require a lot more maintenance.

Comment Re:one in every home? (Score 1) 227

The problem is that the efficiency is going to be significantly lower than the other two solutions you mentioned. Battery storage is extremely efficient and pumped storage also isn't too bad. Converting to ethanol is just the first half of the equation. Converting it back also needs to happen and there are significant losses there. The article also doesn't make any mention of efficiency, only of yields so my guess is that it isn't all that efficient.

Comment Re:Trump versus Clinton (Score 0) 500

Let's see. Hillary has repeatedly admitted that using a personal email server was a mistake. She has also admitted that the Iraq vote was also a mistake. She has admitted to numerous mistakes, meanwhile Donald's win-at-all-costs-I'm-perfect-trust-me has never admitted a mistake. Hillary has also admitted that some of the policies that were done when Bill was president did not work out so well. I see this as someone learning from their mistakes. Most people will learn from mistakes and move on.

Donald doesn't make mistakes. Failures are always somebody else's fault because he's perfect and such a great businessman that he loses almost a billion dollars while the economy is doing well. It's not his fault that he was sued by the justice department (under the Nixon administration, no less) for housing discrimination. It's not his fault that Trump Airlines went bankrupt, after all, turning a bottom feeder airline into a luxury airliner is sure to succeed, right? It's not his fault that his foundation funded his businesses with other people's donated money even though it was illegal for his foundation to collect money? It's not his fault that his casinos went bankrupt or that his father illegally bailed him out by buying chips. It's not his fault that he's so misogynous towards women, especially ones he doesn't think are pretty. It's also not his fault that most stuff he says is untrue. After all, Hillary is a liar compared to Trump.

If anyone feels they're entitled, it's the Donald because he's just perfect and can never do no wrong and is such an awesome businessman, after all, he always says, "Trust me."

Comment I've been working with this for a while (Score 5, Informative) 157

I have been working with 2.5G for around a year now using a 2.5G physical interface chip from Aquantia that seamlessly handles everything from 100Mbps to 10Gbps including 1G, 2.5G and 5G. If the cable isn't too long I've run 10G over cat 5. Hopefully the prices will drop quickly once more companies support this standard since I just bought the cheapest 2.5G switch I could find, 8 ports for around $1200 for development purposes. It also interoperates fine with standard 1G equipment.

Aquantia is also nice is that unlike many phy chip vendors their phy SDK is free as in beer and is fully GPL and BSD compatible, though it will need to be re-written for the Linux kernel to follow the guidelines. I re-wrote it for U-Boot though I won't be able to push it upstream for a while yet. The chip I'm using even supports MACsec in hardware. There were two different 2.5G proposals, one from Broadcom and one from Aquantia. The Aquantia is the one that ultimately got accepted as the standard.

Comment Re:No one likes (Score 2) 657

Remember, Trump solicited campaign contributions from foreign nationals. He has business interests all over the world, including many in Russia. His idea of a "blind trust" for his businesses is for his children to run them. There's no way Trump can avoid massive conflict of interests around the world. He's heavily indebted to Russian oligarchs and other areas that are in conflict with our national security.

Comment Re:Yeah but there's a whole world out there (Score 1) 867

I consider myself an exact opposite of a neocon, being fairly liberal, but I too have watched Russia's behavior under Putin with grave concern. The Frontline documentary, Putin's Way offers a glimps of the man and it isn't pretty. The former KGB agent is up to his eyeballs in corruption in a way mafia bosses could only dream of. What I find frightening is that Russia will basically run out of funds in the near future. His reaction to the resulting meltdown will not be pretty.

Comment Experience with Tesla (Score 5, Informative) 261

I must say that my experience with Tesla is the polar opposite of my experience with a local dealership. In both cases I had to wait 6 months to get the car I wanted. With the dealership I ended up with my 3rd choice of color and they kept pushing me to take a white car either missing options I wanted or with extra options I did not want. When I picked up my car they tried to sell me a bunch of stuff I didn't want. After I got the car they would frequently try and push extra service the car didn't need or didn't bother trying to find a very common problem the car had. Then just after the 3-year 36K warranty the HID headlights started burning out, another well-known problem with the car I bought. Despite the fact that I had a 7 year, 100K warranty and that the headlight bulbs were well under the rated lifetime they wanted to charge me $200/bulb ($50 on Ebay) plus a ton of labor. I have since sold the car to my father and the center display touchscreen stopped working. The dealership wants $5K to replace it, much of that for labor. The touch screen costs a fraction of that and I found a youtube video where a woman shows how to replace it in around 20 minutes with simple hand tools.

With my Tesla I got exactly what I wanted. Up until they made my car I could pick and choose what options I wanted through the web site with it immediately updating the price. This is unlike a dealership where I'd have to wait until they got something in inventory or found a car elsewhere with my requirements. With Tesla, most cars are made to order so there's no inventory sitting on dealer's lots other than test drive vehicles and loaner cars. The people running the showrooms do not earn commissions and there were no high-pressure sales tactics. They were there to show the car. I would say most people there were simply looking and probably not going to buy one but they treated everyone I saw there with the same respect they did me.

For loaner cars, which are always fairly new and usually with many bells and whistles there's always the option of trading in your car for the loaner car.

Tesla has always treated me well when it comes to service. My car had a number of issues, mostly rattles and other noises since my car was one of their early cars. They learned a lot and made a lot of improvements since I got mine.

Last spring I got a hole in the sidewall of my tire out in the middle of nowhere and the closest tire center was 62 miles away. I called Tesla which has free towing for up to 50 miles. They sent out a tow truck and put it on a flatbed to the tire center I selected after calling around between Tirerack and the tire centers and asked the tow truck driver how much I had to pay to make up the difference. He said Tesla covered it even though it was over their limit. Tesla also called me back to make sure everything was OK. The biggest hassle was the fact that I have low profile performance tires that aren't commonly stocked.

They have always gone above and beyond with service and when I have had to pay for it like when I broke a clip on my car they did not gouge me parts or for fixing it unlike the Toyota dealership.

Another time I had a blow-out and bent rim due to San Jose's poor excuse for a road at 3am. I called them up and they sent out a tow truck with a replacement wheel and tire until I could come back at my convenience and have them replace it (I bought tire and rim insurance through Tesla).

The last time I had service done on my car they dropped my car off where I work and picked up the loaner.

Elon has stated on numerous occasions that they do not want to make a profit off of service. This is the exact opposite of how dealerships work. Most dealerships don't make much money selling cars. They make their money through financing and service. If there's any complaint I have about service it's that if it isn't something that needs to be taken care of immediately that there's often a wait since they seem to have problems keeping up with demand. Since I also use the service center at the factory, it is also busy helping prep new cars so certain times are particularly bad like the end of the quarter.

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