Engine electric for marine application

Engine electric for marine application

Gentle Engineering on Tesla Motors
I am very happy for your engagement and courage in the field of ecology.
I have a speed boat of 12 meters and have sold the twin diesel engine because I am ecologist.
I asked to you if you will move your technology in the nautical field in future.

Regard Dr Sasso Ivan

Naples (Italy)

Vawlkus | 18 maart 2011

Tesla could do it, but you'd still need batteries, and a LOT of them to power your boat. The best idea I have is to install an electric drivetrain and hook it to a portable generator that isn't driven by gas. It's not perfect, but it's probably as good as you're going to get for now.

searcher | 18 maart 2011

There was some discussion of this way back in the posts somewhere. Hey Vawlkus visit the "Esoteric Ev Ramblings" thread and crank up something.

Tiebreaker | 12 april 2011

Buy a sailboat.

Timo | 15 april 2011

Sailboat brings to my mind that fun road-going car that looks like physical impossibility, with windmill-like propeller you can go twice the speed of wind in wind direction using that and connection to the wheels.

Sounds crazy, right? It isn't:

It would be fun to try that same on the boat. With strong wind using that same principle you should be able to get your boat in quite significant speed. Or not. I simply don't know.

That same doesn't work against wind, but I wonder if you could go like sailboats usually go: tack against the wind using a windmill-emotor combination.

Also windmill as a sail charging batteries on a route would not be a problem. You could then continue on batteries on calm day.

Tiebreaker | 15 april 2011


Tom A | 16 april 2011

An EV boat would be great - anytime you get anywhere near a marina, the slick of petroleum product residue on the water is just flat-out wrong. Nasty and unhealthy and a threat to local wildlife.

However, boats are a niche market - nowhere near the customer base as automobiles. I'm sure it will come, and I wouldn't be surprised if there are some people around the world who have done their own conversions. I can imagine a fairly straightforward procedure of replacing the ICE of an outboard motor with an electric motor, and spreading out the battery packs along the boat for stability.

The extra weight would work against high speed, just as in cars, but I imagine that the extra weight would make the boat more stable, such as when passing through a wake, and provide for a smoother ride on choppy days.

In other fields, many manufacturers of lawn mowers have been selling electric versions for years with success. I owned one when I owned a home and it was great. Clean, no stench in the garage, relatively quiet operation, and no difference in the effectiveness of cutting the grass.

Brian H | 17 april 2011

Never heard of a battery-powered electric mower, though! Long orange or yellow power cord, which you MUST NOT run over!

clea | 17 april 2011

Cordless electric lawn mowers have been available for years. the first one that i know about was by black and decker when they released "the first four-wheel, reel-type cordless electric lawn mower" in 1969 (

It has taken a few years since then before they had the technology to build something light that could also last long enough to do an decent sized yard but i have been using cordless mowers for a few years now.

Timo | 20 april 2011

@imhsar, I'm flagging your message as spam, because of advertisement. If you have something to say, say it without advertisement.

neroden | 25 april 2011

I actually have a modern Black & Decker battery-electric mower. For small yards, they're fabulous. My yard's just big enough that I got a spare battery. They're using plain old lead-acid, as are most of the battery-electric mowers on the market; I'm sure they could do better with more modern battery chemistries, but it does keeps the mower cheap.

And for string edge-mowers (weedwhackers), electric is the only way to go; the gas versions of those are insanely inefficient and polluting, while the electric ones take tiny tiny batteries and can do quite a lot of distance with one charge.

mellg | 27 april 2011

You can always use a marine starter on your car or pickup but never use an automotive starter on your boat. All of you need to know about your sailing yacht or trawler yacht and motor yacht systems.

Tiebreaker | 27 april 2011


What's up with the spamming?

Timo | 27 april 2011

Marking that mellg message as spam.

Dany Russo | 15 april 2014

I heard that Tesla has now a chance to obtain cheaper raw materials from a domestic and new mining company called American Manganese Inc. I read an article about this here

Tesla need these raw materials in a form of Cobalt, Manganese, Lithium, Carbon, and many others that are use to build their electric batteries.

David N | 15 april 2014

this very topic was brought up in a Q & A at a town hall meeting with Elon and his answer was that there are no plans to enter the marine field. His focus will remain on making sure his business plan for Tesla, SolarCity, and Space X remain on track.
I'm sure that at some future date this technology will enter the marine field.