https://www.seattleeva.org/mw/index.php?action=history&feed=atom&title=Talk%3AControllers_CostTalk:Controllers Cost - Revision history2026-07-26T04:40:20ZRevision history for this page on the wikiMediaWiki 1.34.1https://www.seattleeva.org/mw/index.php?title=Talk:Controllers_Cost&diff=8142&oldid=prev65.184.40.76: New page: The fact remains that the Toyota Prius 50-80KW VFD costs under $2000 in mass production. The reason why Curtis and all the rest charge $2000-4000+ for a dc equivalent 100-200KW is the sa...2008-08-21T16:37:18Z<p>New page: The fact remains that the Toyota Prius 50-80KW VFD costs under $2000 in mass production. The reason why Curtis and all the rest charge $2000-4000+ for a dc equivalent 100-200KW is the sa...</p>
<p><b>New page</b></p><div>The fact remains that the Toyota Prius 50-80KW VFD costs under $2000 in mass production. <br />
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The reason why Curtis and all the rest charge $2000-4000+ for a dc equivalent 100-200KW is the same reason why the Xantrex grid-tie inverters cost on average 80 cents a watt, and perform no better than the Prius' inverter, which is capable of the same task at 3-5 cents a watt.<br />
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Consider the fact that to maintain battery reliability, everyone, (not just automakers) need to keep cell count below 200 in a string. yet it is cheaper to have a 500 volt bus to run the motor. The solution is to hold the battery at 140-180 cells @ ~200 volt and build a bidirectional voltage converter into the battery casing @ 500V. <br />
In terms of DC controller cost you just doubled it by including a second converter. It is blatantly obvious that this is not the case, or we would have seen a comparable price increase just after automakers started doing this.</div>65.184.40.76