Electric yacht

[sirbob]

https://uncrate.com/solarimpact-electric-yacht/

 

[Mandelon]

Except for at night, and when it's cloudy.... LOL

 

[4Waters]

So it's got dual engines.

 

[stephenkatsea]

Had full use of an electric boat for 2 weeks in August. A Duffy 22 Cuddy. When it comes to harbor cruising, Duffy Electric Boats really has it dialed in. They are using an azimuthing electric prop. Pretty trick technology, rarely seen outside of large ships.

 

[hallett21]

So when are they going to build a real one?

 

[Taboma]

So you've got 1,000 KW of engines, 800 KWH of battery --- Hmmm, so maybe if you're not running some bumping system and refrigeration, but no AC or other electronics you could get 2 hours at half throttle --- 10 knots. So you average an amazing 20 NM before you kick on the two 65 KW range extenders ???? Solar covers the roof and a few areas, about 130 panels on the roof, so guessing 20-30KW ( or more ??) but that's at solar noon. I think you'd be lucky if you could recharge the batts in a day, I'm thinking more reasonably two if you're using other loads. Plus you need power at night, I dunno, I'm not seeing a lot of "Free Run Time" with this party boat. So batts charged and you take off for another 2 hour cruise --- something doesn't seem right here, so I'm going to pass

 

[Rajobigguy]

So you've got 1,000 KW of engines, 800 KWH of battery --- Hmmm, so maybe if you're not running some bumping system and refrigeration, but no AC or other electronics you could get 2 hours at half throttle --- 10 knots. So you average an amazing 20 NM before you kick on the two 65 KW range extenders ???? Solar covers the roof and a few areas, about 130 panels on the roof, so guessing 20-30KW ( or more ??) but that's at solar noon. I think you'd be lucky if you could recharge the batts in a day, I'm thinking more reasonably two if you're using other loads. Plus you need power at night, I dunno, I'm not seeing a lot of "Free Run Time" with this party boat. So batts charged and you take off for another 2 hour cruise --- something doesn't seem right here, so I'm going to pass

Yeah I was doing a bit of figuring with the limited spec that they give and I figured that they have about 1.5 hrs @ full throttle then your stuck until you have adequate charge to do it again.

 

[Taboma]

Yeah I was doing a bit of figuring with the limited spec that they give and I figured that they have about 1.5 hrs @ full throttle then your stuck until you have adequate charge to do it again.

That and I was trying to estimate how much speed you're going to see out of the 65KW range extenders. Realizing it's not exactly linear, but assuming almost no other load on those gens, 2-3 mph. So a slow sailing speed.
Unless I'm misunderstanding and it's one 800KWH battery pack per 500KW engine ??? Not for both ??

 

[ductape1000]

I think I would rather sail at that point.


Sent from a van down by the river. [emoji111]️[emoji41]