jlf1961
Posts: 14840
Joined: 6/10/2008 From: Somewhere Texas Status: offline
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quote:
ORIGINAL: Hillwilliam One of the big problems of renewables has been battery technology. this might help. https://www.yahoo.com/tech/94-old-inventor-lithium-ion-034245048.html Just batteries? Look, at present, a solar farm using solar panels would need a few HUNDRED square miles of land to power even a small city. Wind farms are little better. Around here, cattle ranchers saw a boon in wind farm companies wanting to lease property for wind turbines, except that for each turbine that goes up, 4 acres have to be fenced off from grazing. Quite a few saw their available land for grazing drop by over half. The only land owners that did not have this problem were the ones that owned property that were the tops of the mesa/hills we have in the area. Of course there are some bright spots to look at. A company in California developed a photocell that is essentially glass with a photo reactive matrix embedded in it. They proved that replacing the glass in a typical high rise could drop the load on the grid by as much as 50%. Adding solar cells to apartments, houses etc in urban areas can have an equally dramatic impact. However, there is the cost problem. None of the systems are cheap. Even with the tax and state incentives which pay out after installation and inspection, the home owner is looking at an outlay of 6 to 10 grand depending on the system and needs of the home. None of this even touches on the conspiratorial rumor mill some alternative energy folks are feeding into, that NASA has developed and is using solar power technology that is 3 or even 10 times more efficient than commercially available and the technology is not being released due to "national security" concerns. Then there is the dream of fusion. The math that explains why the sun maintains a fusion reaction has been around for years, the basic parts are volume, mass, gravity and heat. All are necessary to over come Coulomb barrier. In theory, increase a few variables to over come the lack of others and you should get fusion. Problem is that no one today has any clue as to how to accomplish it in practice. Of course, there are the nuclear power cells of the type that is used in space vehicles. Not true reactors, they generate electricity simply by having nuclear isotopes decay, producing heat and then the heat is converted to electricity. Problem is that if the housing breaks, you have a nuclear accident that makes three mile island look tame, since the isotope is plutonium and a little bit of that can contaminate a large area, or get a tractor trailer buried in concrete (actually saw that when I made a delivery at Oak Ridge. A container of plutonium had leaked just enough to contaminate a truck and trailer but not enough to qualify as a major incident. The solution was to buy the truck from the owner operator and bury the whole rig.) Finally, addressing the battery issue. There are batteries that would make electric cars etc as viable as those burning gas or diesel. And they are not as heavy as what is used now. However, they were developed under the umbrella of DARPA and thus, not commercially available at this time. Even so, Lithium, Nickle Cadmium and other rechargeable, high yield deep cycle batteries have their own drawbacks, that being disposal when they are no longer able to hold a charge. All involve heavy metals which are toxic to humans, animals and plants.
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Boy, it sure would be nice if we had some grenades, don't you think? You cannot control who comes into your life, but you can control which airlock you throw them out of. Paranoid Paramilitary Gun Loving Conspiracy Theorist AND EQUAL OPPORTUNI
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