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Murky Dregs
Joined: 08 Oct 2021
Posts: 12
City/Region: Bronx
State or Province: NY
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thataway
Joined: 02 Nov 2003
Posts: 20809
City/Region: Pensacola
State or Province: FL
C-Dory Year: 2007
C-Dory Model: 25 Cruiser
Vessel Name: thataway
Photos: Thataway
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 Posted: Sat Oct 30, 2021 2:54 pm Post subject: |
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It is hard to find much about this motor. However it is out of the range of most of use C Dory owners:
| Quote: | | The full E-Motion 180E package prices in at a cool $78,990 |
Range is about 70 miles at 17 knots, and it requires 220 V overnight to recharge.
I don't see the weight of engine and batteries (LiFePO4).. They do run it on a jackplate, there appears to be motor water cooling and I suspect battery water cooling (seems to be a constant discharge from a thru hull). This does mean a little more maintenance than zero--keeping impellers and strainers functioning well.
Runs on 650 volt battery...
But it is a significant advance. There are other manufactures at 150hp and in the works many more hp.
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Bob Austin
Thataway
Thataway (Ex Seaweed) 2007 25 C Dory May 2018 to Oct. 2021
Thisaway 2006 22' CDory November 2011 to May 2018
Caracal 18 140 Suzuki 2007 to present
Thataway TomCat 255 150 Suzukis June 2006 thru August 2011
C Pelican; 1992, 22 Cruiser, 2002 thru 2006
Frequent Sea; 2003 C D 25, 2007 thru 2009
KA6PKB
Home port: Pensacola FL |
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Murky Dregs
Joined: 08 Oct 2021
Posts: 12
City/Region: Bronx
State or Province: NY
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| Posted: Sat Oct 30, 2021 5:24 pm Post subject: |
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| thataway wrote: | However it is out of the range of most of use C Dory owners:
| Quote: | | The full E-Motion 180E package prices in at a cool $78,990 |
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Oof. I was looking for a price but couldn't find it.
Seems like this is a few years out. they need to get it close to the same $. |
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JamesTXSD
Joined: 01 Mar 2005
Posts: 7445
City/Region: from island boy to desert dweller
State or Province: AZ
C-Dory Year: 2007
C-Dory Model: 25 Cruiser
Vessel Name: "Wild Blue" (sold 9/14)
Photos: Wild Blue
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| Posted: Sat Oct 30, 2021 7:46 pm Post subject: |
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It's going to cost a pretty penny for Harvey to repower with twins! 
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thataway
Joined: 02 Nov 2003
Posts: 20809
City/Region: Pensacola
State or Province: FL
C-Dory Year: 2007
C-Dory Model: 25 Cruiser
Vessel Name: thataway
Photos: Thataway
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| Posted: Sat Oct 30, 2021 9:27 pm Post subject: |
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It will be interesting to see if the price of electric comes down with increased scale of production. One issue is that lithium is scarce, and has gone way up in price in the last few weeks. There will continue to be a large demand for the Li batteries. It is very possible that other technology will come along. The electric motors, housings, and electronics should come down in price.
The other source of batteries may be recycled car or industrial batteries. Not sure I would want those for a long voyage, but for local use--might. be a good deal.
There have been a number of the electric launchs around many harbors for a long time. They run well, and last a long time, using standard lead acid batteries. |
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hardee
Joined: 30 Oct 2006
Posts: 12632
City/Region: Sequim
State or Province: WA
C-Dory Year: 2005
C-Dory Model: 22 Cruiser
Vessel Name: Sleepy-C
Photos: SleepyC
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| Posted: Sun Oct 31, 2021 12:47 am Post subject: |
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| JamesTXSD wrote: | It's going to cost a pretty penny for Harvey to repower with twins!
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Well now Jim,  I'd be more than happy to if you want to write the grant, and get the ball rolling, I think it could happen. Then we will also need a good trucking company connection to take care of all that extension cord we will needed on my next trip up the BC coast to Alaska. 
Let's see, 70 trips, 3.5 hours. So only one time across Jun de Fuca, (2 hours marina to marina, and an over night stay on the BIG POWER cords.) Gonna be some long extension cords.
Harvey
SleepyC 
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Though in our sleep we are not conscious of our activity or surroundings, we should not, in our wakefulness, be unconscious of our sleep. |
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forrest
Joined: 02 Nov 2003
Posts: 381
City/Region: Chehalis
State or Province: WA
C-Dory Year: 2007
C-Dory Model: 26 Venture
Vessel Name: Long Story
Photos: Long Story
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| Posted: Sun Oct 31, 2021 11:35 pm Post subject: |
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| I wonder what exotic forms of electrochemical corrosion will occur caused by the electric field in a high voltage electric motor in saltwater. |
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Murky Dregs
Joined: 08 Oct 2021
Posts: 12
City/Region: Bronx
State or Province: NY
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| Posted: Thu Nov 04, 2021 3:59 pm Post subject: |
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| forrest wrote: | | I wonder what exotic forms of electrochemical corrosion will occur caused by the electric field in a high voltage electric motor in saltwater. |
I'd like to think they've taken lessons from submarine technology.
Subs have been running electric propulsion since the '30's. |
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Karl Konecny
Joined: 09 May 2019
Posts: 90
City/Region: Glide
State or Province: OR
C-Dory Year: 2008
C-Dory Model: 22 Cruiser
Vessel Name: Nowhere Fast
Photos: Nowhere Fast
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| Posted: Fri Nov 05, 2021 11:40 am Post subject: |
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I have worked in electric submarine propulsion for years and there are a few murky issues with this motor and battery. First, they offer a 60 kWh battery. At 180 hp (134 kW) the battery would be fully discharged in less than 27 minutes so WOT must be used sparingly. The estimate of 70 miles in 3.5 hours means that the motor is only drawing 17 kW (23hp) from the battery. Our efficient C-Dorys would have to be running very light to make 20 mph at that power. Recharging is another issue, common marina power is 30 amp 120 volt which safely provides 3 kW of power so it would take at least 20 hours for a full recharge. With a 30 amp 220 volt outlet, you could reduce that to 10 hours. All is actually a bit worse than I have stated as these calculations assume 100% efficiency -- 90%-95% is more realistic.
All this being said I am very optimistic about the future of electric propulsion on cruising boats. The main issue is cost efficient batteries with enough energy storage. We have great motors and controllers now, the batteries will come along.
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"Believe me my young friend, there is nothing-absolutely nothing-half so much worth doing as simply messing around in boats."
Rat to Mole, Wind in the Willows |
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