[Public-List] Electric Auxiliary

[Backfin via Public-List]

Everyone loves the idea of moving to electric propulsion especially in light of what we have seen in the auto market. Under the right conditions and needs, sure, electric systems work great. But transferring the same principles from car to boat don't typically work for those non-ideal situations. Pushing a non-planning hull through the water is like pushing a prius uphill... all the time. Once accelerated, a prius (and all vehicles for that matter) are exceptionally efficient, unlike our Albergs which still require the same amount of water to move out of the way for us to pass. 

Just ask Nigel what propulsion he put in his boat once his Hybrid research concluded 2 years ago. 

Matt



> On Oct 14, 2016, at 10:51 AM, Tom Steele via Public-List <public-list at lists.alberg30.org> wrote:
> 
> Yeah, I like the idea of it, but reading through some of the blogs of
> people who've taken the leap it just seems that there are too many
> compromises - range, extra consideration given to tide and current and
> their impact on cruising time/range, etc.
> 
>> On Fri, Oct 14, 2016 at 7:38 AM, Andrew Johns <johnsab9 at gmail.com> wrote:
>> 
>> I seriously looked into the kit provided by this outfit.
>> 
>> http://www.thunderstruck-ev.com/electric-sailboat-kits-
>> and-accessories-inboard-motor-ev.html
>> 
>> While the electric aspect is very enticing... no loud diesel, no fuel or
>> oil.
>> 
>> Unfortunately i found it would not work for how we use our boat.
>> 
>> The storage capacity required for a 5 knot cruise for 3+ hours is
>> unmanageable with traditional batteries (lithium may be an option).
>> 
>> The other major drawback was that most systems will eventually overheat
>> and have very limited range at full power settings. I have had several
>> occasions ( particularly one three years ago) where I required full engine
>> output for extended periods. A situation where a diesel would happly run
>> almost indefinitely provided it had enough fuel.
>> 
>> For me it was best to stay with the diesel. ( or if cost was no object go
>> with a hybrid system)
>> 
>> http://www.hybrid-marine.co.uk/5.html
>> 
>> For an application where you required 60min of slow maneuvering in and out
>> of a marina it would be Ideal.
>> 
>> Good Luck,
>> 
>> 
>> On Sun, Oct 9, 2016 at 8:09 PM, Jonathan Bresler via Public-List <
>> public-list at lists.alberg30.org> wrote:
>> 
>>> Tom,
>>> 
>>> A couple of folks have converted to electric.  One example is
>>> https://sailingintotheblue.wordpress.com/
>>> One example from their blog is
>>> https://sailingintotheblue.wordpress.com/2014/01/13/there-
>>> were-electric-motor-problems-because-of-us/
>>> 
>>> Jonathan
>>> 
>>> On Sun, Oct 9, 2016 at 7:43 PM, Wes Gardner via Public-List <
>>> public-list at lists.alberg30.org> wrote:
>>> 
>>>> Hey Tom,
>>>> 
>>>> I DIDN'T do it because of cost. I was quoted 12K for a Thoosa system.
>>> This
>>>> was with batteries (4 of them) but uninstalled.  Dunno with a haul-out,
>>> new
>>>> shaft, new prop, fair amount of large gauge wiring, new engine beds and
>>>> some patching up where my old engine panel would have been just what the
>>>> total would be.  They also did a usage analysis for me and if I were to
>>> run
>>>> flat-out, I'd get one hour of run-time. That killed it for me.
>>>> 
>>>> 
>>>> Wes
>>>> 
>>>>> On Oct 9, 2016, at 3:39 PM, via Public-List
>>> <public-list at lists.alberg30.
>>>> org> wrote:
>>>>> 
>>>>> I've searched the archives and I see a lot of discussion about the
>>>> topic, but has anyone actually pulled trigger and gone electric?
>>> Interested
>>>> to see some real-world reviews.
>>>>> 
>>>>> Tom Steele
>>>>> L'Esprit #288
>>>>> 
>>>>> 
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>>> 
>>> 
>>> 
>>> --
>>> Jonathan M Bresler
>>> S/V Constance Alberg 30 #262
>>> Annapolis/Eastport MD
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>> 
>> 
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