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Technology Stocks : The Electric Car, or MPG "what me worry?" -- Ignore unavailable to you. Want to Upgrade?

To: Eric who wrote (210)	3/28/2008 10:00:10 PM
From: gg cox	Read Replies (1) \| Respond to of 17370

I have no doubt that hooking a "power dense" battery in a car, to the grid, both directions, can be done. Is it practical? The issue with power dense batteries in hybrid cars presently,is how long will they last. This is the big issue.Companies such as Toyota and Honda are using controls on their hybrid batteries to extend their life..giving an 8 year warranty on them, by controlling depth of discharge before gasoline motor, charger, cuts in....These batteries are not taken down deeply.... so they will last. Take them down deeply and at best,all are good for no more than 2000 cycles. Excellent post by SI Bob on the subject.. Message 24096905 You start sucking substantial energy off them..running deep into them to supply the grid on a twice daily basis or more,along with powering the car when needed, and you know what would happen to the warranty..you know what would happen to the batteries...you know what would happen to miles per gallon for hybrids..thus defeating the purpose of a hybrid or pure electric...These are not""DEEP CYCLE"" batteries. <<Distributed storage in this sense is a huge advantage to a utility. >> This system (VRB), as you know, is made to order for a smart grid...depth of discharge down to 20 percent, between 10,000 and 15,000 times, electrolyte good for life...two pumps to possibly replace every seven or eight years...replacing the membranes in the cell stacks, after cycle life, to give another 10,000, plus deep cycles. <<A number of folks are working on this at the present time. Distributed neighborhood grids would become very reliable and stable. As more homes generate their own electrons in the future you can just imagine the possibilities!>> Yes I can, and i have, but not by imagining power dense batteries in cars supplying the grid, but by VRB in my basement and solar panels on the roof. <g> Grid battery article.. planetark.com VRB FAQ vrbpower.com