Anything "MARINE" always cost twice as much as it should, that's just the way of the world. Get over it. If you really want to get your economic feelings hurt, try aviation. It's marine pricing on steroids.
I was in the retail air conditioing service industry for 15 years and if you wanted to make money the rule of thumb was a 67% gross margin on your equipment. That means if you buy it for a $1, you had to sell it for $3 to be profitable. Those contractors that didn't mark their equipment up according were either working their asses off to break even at best or they simply went out of business in a few years owing all their suppliers money. I doubt the overhead and cost of doing business for an electric marine propulsion contractor is any better.
If you have the technical skill and resources to DIY and you don't make too many costly mistakes on the learning curve you do have an oportunity to save a lot of money. If you can afford it and don't want the hassle, hire a professional and pay the extra two thirds. If your vendor is low balling his product, be wary, he might not be there to service what he sells in a few years.
From: ""hanermo" - CNC 6-axis Designs" <gcode.fi@gmail.com>
To: electricboats@yahoogroups.com
Sent: Friday, November 18, 2011 11:53 AM
Subject: Re: [Electric Boats] Re: Where to even start
I agree with Josh ...
It just seems far too high.
Now, IF, as was intimated in another post, proper thrust bearings, mounts, high-amp cabling, connectors etc. are included in the kits, thats another matter.
A motor mount (light engine, which these are) is definitely not worth 3000$ (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.
To: electricboats@yahoogroups.com
Sent: Friday, November 18, 2011 11:53 AM
Subject: Re: [Electric Boats] Re: Where to even start
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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