First of all, thanks for the great and informative videos. It's great to see a boatbuilder that continually likes to work out of the box. The marine industry needs to catch up on hybrid energy systems. AC Propulsion, decent size battery bank, Capstone turbine genset, add solar panels and vertical wind turbines---Economically not feasable--but getting closer-- Thanks Again!
One advantage 12v batteries have is redundancy. If you have only 6 2v batteries in series to make your 12v and one battery fails, you are down to 10v and you may even need to rewire to remove a shorted or open battery. With 4 12v batteries in parallel, if one fails you still have 12v, just with less capacity. If the battery that failed has an open, it doesn't need to be removed from the circuit and if it failed with a short, you only need to disconnect one side of it's circuit. It's just something to think about. Another thing to think about is if you use an electric drive motor to drive the prop, when you are sailing you can use that same motor as a generator as the prop turns it. A very good one at that. A good diesel engine can be a generator both for the electric drive and for the battery charging/power needs of the boat as required.
That's a great system! Nick, have you thought about AC electric propulsion? ELCO and others seem to have some great systems for cruising sailboats. elcomotoryachts
First of all, thanks for the great and informative videos. It's great to see a boatbuilder that continually likes to work out of the box. The marine industry needs to catch up on hybrid energy systems. AC Propulsion, decent size battery bank, Capstone turbine genset, add solar panels and vertical wind turbines---Economically not feasable--but getting closer-- Thanks Again!
One advantage 12v batteries have is redundancy. If you have only 6 2v batteries in series to make your 12v and one battery fails, you are down to 10v and you may even need to rewire to remove a shorted or open battery. With 4 12v batteries in parallel, if one fails you still have 12v, just with less capacity. If the battery that failed has an open, it doesn't need to be removed from the circuit and if it failed with a short, you only need to disconnect one side of it's circuit. It's just something to think about.
Another thing to think about is if you use an electric drive motor to drive the prop, when you are sailing you can use that same motor as a generator as the prop turns it. A very good one at that. A good diesel engine can be a generator both for the electric drive and for the battery charging/power needs of the boat as required.
yes the industry holds it back and most yacht owners aren't aware
Would it make sense to have two banks of 6 two volt in series then wire the two banks in parallel to get 2400 AH @ 12 volts
That's a great system! Nick, have you thought about AC electric propulsion? ELCO and others seem to have some great systems for cruising sailboats. elcomotoryachts