One item really surprised me in the article. The authors stated that costs had decreased from about $1000 per kWh in 2007 to about $450 per kWh in 2014. That means my conversion running ThunderSky 100 Ah cells was leading the state of the art in cost by almost 5 years!
My conversion has 45 100 Ah cells (13 kWh). It cost about $6000 including miniBMS in 2010. That was $461 per kWh. I assumed hobbyists were paying more for batteries than manufacturers, but maybe not. Or, these costs contain amortized development costs. Or, the paper is wrong. Mike What they found was that the cost of battery backs for electric >vehicles has >decreased from about $1,000 per kWh in 2007 to about $450 per kWh in >2014. On July 24, 2015 4:38:25 AM MDT, brucedp5 via EV <[email protected]> wrote: > > >http://arstechnica.com/science/2015/07/electric-vehicle-batteries-are-getting-cheaper-much-faster-than-we-expected/ >Electric vehicle batteries are getting cheaper much faster than we >expected >by Megan Geuss - Jul 16, 2015 > >And automakers are using those economies of scale to jump into >stationary >storage. > >Earlier this year, Telsa Motors made headlines when it announced that >the >company would start selling Tesla-branded stationary storage batteries. >The >move was expected, but a bit odd—battery storage for homes has been >around >for years, but it has never really been cost-effective enough in most >households to merit the kind of treatment that Tesla gave it. While >Tesla >successfully nurtured a luxury electric vehicle market, it still seemed >out >of place to see a luxury brand going out of its way to put car >batteries on >homes. > >Ars argued that the real news behind Tesla's stationary storage > _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org For EV drag racing discussion, please use NEDRA (http://groups.yahoo.com/group/NEDRA)
