I agree with Josh ...
It just seems far too high.
Now, IF, as was intimated in another post, proper thrust bearings, mounts, high-amp cabling, connectors etc. are included in the kits, thats another matter.
A motor mount (light engine, which these are) is definitely not worth 3000$ (still leaving the retailer 5000$ margin).
And for such low-power devices, thrust bearings are not too expensive even for marine equipment (available for typically half price as industrial stuff).
I agree with all posts re: value of engineered solutions.
However, there is a value associated, and that comes down to demonstrable pieces of kit, know-how, documentation, parts, support etc.
I also understand that these have often been single-unit low volume stuff, and that most purchasers do not want to pay engineering, installation etc. costs for their particular case, leading to increases in kit costs.
ASMO Marine uses the Lynch motor, which is $1799: http://www.cloudelectric.com/product_p/mo-lem200-127.htm. Propulsion Marine uses a Perm motor, which is $1025: http://www.electricmotordepot.com/products/Perm-Electric-Motor-PMG%252d132.html. If I were going the DIY route I would get the new, superior Lynch motor for $1625: http://www.electricmotordepot.com/agni-electric-pm-motor-b95r/. Sevcon controller is $595: http://www.electricmotordepot.com/sevcon-gen4-controller-24-36v-300amp/
The Thoosa 9000 system best price is: $7790 at NGC Marine. You get the Lynch motor, motor mount with reduction, 200 amp unnamed controller, and ignition.
If you look at the case studies from Electric Yacht a lot of them had to fabricate or rig their own mounts and wiring. In one case study someone hired a marine electrician.
In the end I'm against the DIY route and will probably go with a vendor solution when I get to that stage on the catamaran I am building next year. I just want to understand how the market settled on the price range of $8000-$10000 for base "kits".
Josh
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