Electric Propulsion Systems Available

[fastcat435]

Hallo Flybridge , so far we have sailed 12000 NM over the last year and the system works perfect, we have 5 more cats under construction that all will be equipped with the same system , 3 x with dual 10 KW Motogens for the FastCat 445 1 x with dual 20 KW motogens for the new FastCat 61 and a 50 ft eco Powercat with 2 x 20 kw steerable motogens. A software program is under development to automatically adjust rpm to get the highest charge. We have gone for larger 4 bladed props 18x 9 to increase charge efficiency and increase efficiency when under power. in the second half of January we will launch the 2nd Green Motion FastCat 445 .
Greetings

[hellosailor]

"we have sailed 12000 NM over the last year and the system works perfect,"
Meaning, something like 1000 hours of propellors turning the motors as generators and recharging the systems, plus time spent under power? With the batteries being cycled to what depth, what percent of full capacity are they still able to come back up to? 100%?

Interesting to see how the technology plays out in the real world.

[fastcat435]

Hellosailor we have set the automatic discharge to 80 % ( we use Lithium Iron Batteries ) max discharge is 90 % , so far after numerous discharges we still get to 100 % charge.

[Flybridge 31]

Hi Fastcat

Do you have any data on any power boat conversions or original construction?

As I've mentioned in previous posts I can't see why the gen set can't be running all to time to run the system.

Kind Regards

[fastcat435]

Hallo Flybridge 31 , the gen set can run all the time but the units we use are automatic so when the battery voltage is 90 % it switches off and start again at 40 %
Please mail us for additional info so we can send it to you.
I have attached pictures of how we install the Motogens in the new Eco Power cat

Greetings

[gaurav bokdia]

Hi all of you,

There is a question in my mind that, which propulsion system is better than electric or hybrid for pleasure craft?

and there is another question regarding this

which are the companies which made electric propulsion system for pleasure craft or yachts?


reply me

Thanks in advance

Regards to all

gaurav

[Juniper]

I have had some electric drive time under me, not on a boat but hard use and not much care, I've run GE Elec-Traks for years, these were build in the late '60s to early '80s, How many of you have 40 year old lawn tractors still running? these things can be run hard for years then be left in a field for years, put in new batteries and off it goes agian, the motors are amazing, there is more than one moving part in most, you have bearings too, and brushes wear. The big limiting thing with electric drive is the batteries. A hybrid system with LiFePO4 batteries sounds like a good package.
I'm thinking of trying to put together one, a 3GM30F and a pair of 2.5 hp GE shunt motors, I just want something that will run electric for 15-30 minutes, just to get out of the harbor or up to a dock, no need to start the diesel, let it warm up, run it for a few minutes, let it cool down, then shut it down, the diesel is still there for long runs

[JamuJoe]

In my opinion, electric propulsion for sailboats, both cruisers and day sailors, will certainly become more economical and practical as battery technology advances. The potentials lies not in comparison to large commercial diesel-electric installations, but in automotive electric drives. The automotive industry will drive the mass production of advanced batteries and controls that will make small scale marine installations more economical. Yachts will have the advantage of more space for solar charging and regenerative charging through the propeller when there is sufficient wind for propulsion, with a small engine for supplemental charging.