T-Pain Is On A Boat: Re: [Electric Boats] Re: Any larger electric boat owners out there?

A similar motor but at much better price is the AC90 for about $8000
for motor and controller.

http://www.bev.com.au/diy.htm

You can get a used AC55 for around $4000 Now these are about half the
motor, but I can't think of any way to keep those 100 kw motors feed
anyways.

If I wanted to spend $37,000 on just a single motors I'd go with the
Steyr Hybrid or the Glacier Bay OSSA Hybrid systems! At least that
way you get the generator included with the price. ;-)

On Jun 20, 2009, at 2:04 PM, j_bird246@yahoo.com wrote:

>
>
> I checked these out after reading an article in Popular Mechanics
> where they converted a Dodge Charger. I am looking at the same
> thing for my Chris Craft Catalina 28 (which is ready for a re-power
> anyway).
>
> Your larger Chris Craft would have a lot more room for a battery
> bank (probably would be about the same weight as your engines and
> fuel tank anyway, and the motor/controller package for the 150
> weighs only 235 lbs. Being liquid cooled makes them ideal for a
> marine application..if you can afford them ( I can't).
>
> http://www.uqm.com/propulsion_specs.php
>
>
>
> I have a friend who works for a small automation design and
> engineering firm request a quote for the PowerPhase 150 series motor/
> controller....$37,400.00 ea. No way I can do it, not when I would
> still have to invest in batteries and a charging system of 300-400
> volts.
>
> My boat is powered by twin 350's with a 1:1 (i think) ratio, and
> these motors would make me quite a bit faster, but not for as long.
> I could do a slow cruise as you suggested with generator help all
> day long though, or power out to my fishing spot, troll and charge
> on the genny for the afternoon, then power home with plenty of
> battery left in reserve when I returned to port.
>
> Anyway, I just thought they were cool, and I was excited by the fact
> that there actually is a product out there like this, because that
> means that eventually there will be one that is affordable too.
>
> Have fun!
>
> http://www.uqm.com/propulsion_specs.php
>
> --- On Sat, 6/20/09, James Sizemore <james@deny.org> wrote:
>
> From: James Sizemore <james@deny.org>
> Subject: Re: [Electric Boats] Re: Any larger electric boat owners
> out there?
> To: electricboats@yahoogroups.com
> Date: Saturday, June 20, 2009, 3:01 AM
>
> I did the numbers on putting in two Solidnav Voyagers, (or similar
>
> motors) for a total of 16kw at 600 amps draw. I could supply these
>
> motors at half speed indefinitely with power. I have a 7.5kw
>
> generator, and my boat can easily hold a 2kw solar array. With this
>
> setup I would own the worlds slowest cabin curser. ;-) With around
>
> 50 hp?, But I would go.
>
> I also did the numbers to kind of come close to replacing the
>
> performance I have and I was looking at two motors each in the 60-80
>
> kw range. Which depending on the motor efficiency would be around 80
>
> hp peak 40 hp or so continuous. To give you an ideal of the amp draw
>
> on the batteries at full throttle assuming 100% efficacy for each
> prop:
>
> at 48 volts you would need whopping 1250 amps (I have not found a
>
> motor in this range)
>
> at 144 volts 417 amps (These exist)
>
> at 312 volts 192 amp (These exist)
>
> Now times the amps by two (one for each prop) for a total of 160 hp.
>
> Obviously at that amp draw a third of an hour is all you could do with
>
> a $12,000 dollar battery pack, say 800 AH at 48 volt at full
>
> throttle. Now it might be nice to have this speed for 15 minutes but
>
> is it really worth it?
>
> Heck I don't know still on the fence. LOL. Option two at low speeds
>
> is just as amp efficient as option one, plus you have the option to
>
> drain you pack faster if you want, the question is how often would I
>
> want to go faster? I'm guess not very often. The down side to option
>
> two is as stated below It pretty much forces me into a high voltage
>
> battery pack.
>
> But if you had a setup in mind, let me know I would be happy to do
>
> the numbers! That part is fun. Making a choice and living with it is
>
> the hard part. Everything with boats is a trade off....Everything!
>
> Feel free to poke fun at my number above if you find flaws.
>
> On Jun 20, 2009, at 2:52 AM, Hans Kloepfer wrote:
>
> >
>
> >
>
> > James,
>
> >
>
> > Not really sure how much power you are looking for on your boat. You
>
> > have a tall order replacing two big V8's. If you wanted to stay with
>
> > the simplicity of 48v (which would be alot more convenient) have you
>
> > considered belting more that one motor to the same shaft? Would two
>
> > 48v motors per shaft give you the kind of power you are looking for?
>
> >
>
> > --- On Thu, 6/18/09, James Sizemore <james@deny.org> wrote:
>
> >
>
> > From: James Sizemore <james@deny.org>
>
> > Subject: Re: [Electric Boats] Re: Any larger electric boat owners
>
> > out there?
>
> > To: electricboats@ yahoogroups. com
>
> > Date: Thursday, June 18, 2009, 2:20 PM
>
> >
>
> > The first hard choice you have to make is the pack voltage, A 48
> volt
>
> >
>
> > pack will make buying components for your house solar array easy and
>
> >
>
> > cheap (pretty much standard off-grid setup), and buying a traction
>
> >
>
> > motor big enough to replace your V8 very hard (I only know of one 48
>
> >
>
> > volt high current low voltage motor and the price scarred the paints
>
> >
>
> > of me). If anyone knows of a large high HP 48 volt motor let me
>
> >
>
> > know! (The reason they are rare is that high current draw from the
>
> >
>
> > batteries radically increases the perkert effect, and wire size. )
>
> >
>
> > But if you go lithium or travel on strait solar/generator (You would
>
> >
>
> > need a big array 1600w minimum to get even a few knots. ) 48 volt
>
> >
>
> > would be optimal from a simplicity standpoint.
>
> >
>
> > Or you can go with a 144 volt or 312 volt pack and have lots of
>
> >
>
> > traction motors choices. But very limited inverter charger choices
>
> >
>
> > to supply power to the house.
>
> >
>
> > The DC to DC that I have heard the best gossip on for the high
> voltage
>
> >
>
> > setup is : http://www.victrone nergy.com/ chargers/ centaur-charger-
>
> > 12v-24v/
>
> >
>
> > 90 DCV - 400 DCV input . You will have to go with a grid-tie
>
> >
>
> > inverter solar cell setup (high voltage solar cells and hight
> voltage
>
> >
>
> > inverter) They exist but don't have the features of the 48v peers.
>
> >
>
> > I would prefer the low voltage setup myself ( the the lack of motor
>
> >
>
> > choices is devastating) I have a few high voltage setups on paper
>
> >
>
> > but nothing I like enough to pull the trigger on yet.
>
> >
>
> > If you have any question or ideal let me know I have put a lot of
>
> >
>
> > work into different designs, I'm sure I can save you some time
> looking
>
> >
>
> > for components.
>
> >
>
> > On Jun 16, 2009, at 7:08 PM, mcdonaldmike13 wrote:
>
> >
>
> > >
>
> >
>
> > >
>
> >
>
> > > I just found this site today. I too am interested in converting my
>
> >
>
> > > boat to electric. It is a 47 foot river cruiser with a shallow
> draft
>
> >
>
> > > with a Volvo v8 sterndrive that I would like to remove. We plan on
>
> >
>
> > > using solar and wind for our house power but am getting lost on
> all
>
> >
>
> > > the electrical options or non-options. This a go slow boat. Are
>
> >
>
> > > there any viable options out there?
>
> >
>
> > >
>
> >
>
> > > --- In electricboats@ yahoogroups. com, James Sizemore <james@...>
>
> >
>
> > > wrote:
>
> >
>
> > > >
>
> >
>
> > > > I see a lot of traffic on this list for smaller conversions
>
> >
>
> > > replacing
>
> >
>
> > > > A4's and such on 20-30 foot sail boats. Are there any folks that
>
> >
>
> > > have
>
> >
>
> > > > replaced larger motors on cruisers/trawlers?
>
> >
>
> > > > I will be replacing two 427 fords (350hp gas engines) on a 41
> foot
>
> >
>
> > > > Chris-Craft. This if for a number of reasons including not
> wanting
>
> >
>
> > > > the ongoing expense of buying gas, second I really hate the
>
> >
>
> > > monstrous
>
> >
>
> > > > complexity of combustion engines. I have a computer science/
>
> >
>
> > > > electrical background so I am much much more knowledgeable and
>
> >
>
> > > > comfortable with electrical systems. And not to mention the
> smell
>
> >
>
> > > and
>
> >
>
> > > > noise of combustion engines. The knowledge I lack right now is
>
> > boat
>
> >
>
> > > > related: prop size pitch ...etc...etc. I don't need the boat to
>
> >
>
> > > plane
>
> >
>
> > > > at 17 knots or anything like that, although if it does all the
>
> >
>
> > > better.
>
> >
>
> > > >
>
> >
>
> > > > My current thinking is to replace the fords with a pair of
>
> > (Netgain
>
> >
>
> > > > Warp 11'' or Transwarp 11'')'s. The part I can not rap my head
>
> >
>
> > > > around is if I go direct drive with the Transwarp's will they
> spin
>
> >
>
> > > the
>
> >
>
> > > > props to fast? Or should I keep the transmissions that the fords
>
> > are
>
> >
>
> > > > bolt to now and go with the Warp's. I would prefer not to have
> the
>
> >
>
> > > > extra complexity of the transmissions. The Netgains can move a
>
> > large
>
> >
>
> > > > truck at freeway speeds 70+ MPH. My understanding of the
>
> >
>
> > > conversion of
>
> >
>
> > > > electrical hp to combustion hp is at 144v these motors should be
>
> >
>
> > > about
>
> >
>
> > > > the equivalent of a 150-200 hp gas motors with considerable more
>
> >
>
> > > > torque at the low end.
>
> >
>
> > > >
>
> >
>
> > > > The boat will soon have a fairly large solar array and already
> has
>
> >
>
> > > > 7.5 KWH generator. So keeping the battery bank feed should not
>
> > be a
>
> >
>
> > > > problem. I know finding a solar charger/inverter for a 144v
>
> > battery
>
> >
>
> > > > pack will be a real challenge. Any recommendations are
> welcome. I
>
> >
>
> > > > would also be very curious of other conversions of larger
> plaining
>
> >
>
> > > > hull boats, and what motors you use and performance you get now.
>
> >
>
> > > Also
>
> >
>
> > > > any recommendations on motors/charges/ controllers or kits for
>
> > boats
>
> >
>
> > > > this size would be most welcome.
>
> >
>
> > > >
>
> >
>
> > > >
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> > > >
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> >
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