Hi all
We need
A used car alternator.
A plastic housing with watertight bearings.
A ship propeller 20 -30 cm.
A second watertight ball bearing.
300 m of heavy duty cable.
A new car battery.
Take the car generator and add a water-resistant body (2
component resin will work), attach the ship
propeller on its axis,
mount it with a rotating base on a steel tube in a 20 pound
concrete block.
Add a 30 cm vane on the opposing end to do the steering, wire the
cables and place the whole thing on any beach just outside the
breaking waves.
Now, any coming wave will spin the propeller, the vaning water
will turn the assembly and spin the propeller again...
There is a little extra effort to be put in the rotating base. We
need 2 isolated copper rings and two carbon contacts to get the
360 degree rotating alternator currents into the base which does
not rotate. You can find the carbon contacts in any discarded
electro motor.
Attach the other end of the cables to the
battery. Careful with the polarity. (in case you wired it wrong,
plus is minus and red is negative!)
Free energy for each beach camper!
Saludos