24 Nov '11, 5pm

40,000 Cycles — Nanotechnology Catapults Battery Technology Forward, Once Again

Let me see if I can illustrate the value of inexpensive storage… I’m off the grid, mostly solar with some gas generator backup. I’ve got my electricity usage down to somewhere between one third and one half of the average US home. (Cook and heat water with propane, heat with wood, don’t need AC, all CFL/LED lights, etc.) I use a dozen deep cycle “golf cart” batteries to store solar/gas energy for the hours the sun isn’t shining. They cost me about $2,000 and last 5-7 years. In order for a utility company to put enough lead-acid storage in place to serve the average house with wind/solar power around the clock would probably cost $6,000 and drive up the cost of power by $100 a month. If Aquion can produce storage at 20x less then that number drops to an insignificant $5/month. With really cheap storage (20,000 or 40,000 cycles would take costs to no more than $1.25/month) t...

Full article: http://cleantechnica.com/2011/11/24/40000-cycles-nanotech...

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