Originally Posted by bryguy67
Yeah but (stomping feet in frustration) I WANT that "electrickery" to work! Re-gen under sail instead of while breaking like in my hybrid car. Hope somebody gets it right soon.
Problem is, the re-gen under braking is done on a very short-term basis. You brake, seconds later you use the power you generated. Very small batteries are needed to take advantage of it.
On a sailboat, it may be hours or days between changes of power requirements. You have wind
for hours or days, then you have none for hours or days.
In addition, to generate power, you'd be towing a generator
or using a wind generator
, or dragging the propellers, etc. Whatever you use, you aren't using energy you'd otherwise throw away. To generate that electricity, you would be sacrificing speed. The only time you'd really gain is when the wind
is powerful enough where you are not running flat out. The drag is offset by using a little more sail than you normally would under those conditions. Now, what percentage of the time are you running under those conditions?
I just don't see how a car-type hybrid is ever going to be as successful in a boat as it is in a car. It's just totally different dynamics.
Now, THIS type of hybrid might work.
==> Wave Runner
The wave powered boat might be able to use wind power, and also wave power, and maybe generate electricity from the waves. You STILL have the issue of just how much electricity you can store. So, the electricity generation is still more of a byproduct, rather than a serious propulsion option.
A very convenient by-product, that is. Imagine being at anchor
and generating power with the wind when it's around, the sun when it's out, and the waves when they're bouncing. That's a lot of options. Surely ONE of those is happening all the time.