Electric Propulsion

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	Electric Propulsion

Here is an interesting unit. 48 Volt electric replacement for sailing or power vessel up to 32 feet in length. There is a 72 volt model that comes for larger cruising boats like Stone Age. We will be fitting her out with 2 of Electric Yacht 72 volt units for our run around the island. It will be a good test for them.

We also invite all electric powered sailboats to join us. I know there are many examples of electric boats out there. This could become a really good eye opener for the world if it gets enough attention. We have a financial goal of $15,000 for the conversion project. We are actively seeking test boats for this application and installations can start as early as Mid March 2099.

The Manufacturers suggested retail price is $3,995 USD for the motor setup. It is put together in Minnisota and shipped here, plus there is duty and taxes of 12% applicable. 7% SST and 5% GST. There are several battery choices available to power this.

We are offering special incentives for the first 10 boats to be used as testing platforms.

Your first choice can be deep cycle Lead Acid easy to get batteries. For a good set you will spend at least $125 CAD. These are the type of the 6V Golf Cart style batteries.   For 48 Volts you would need 8 giving you 200 amps total. In the real world you get max 95 - 100 amps out of them.

That is considered a cycle. one full deep discharge. These units will deep discharge about 750 - 1,000 times. But if you don't ever deep discharge them, and you are using the latest smart charging technology via solar, wind and AC sources. Also add some desulphiting technology and you might find these batteries last a good long time.

Next is the Gel/AGM style. Much more expensive and for the dollar value - Worth it because the cycle numbers are higher and the extra time you get to use them pays for the extra costs incurred when you bought them. It's a good trade off if you don't want to exchange your batteries as often.

Now we come to LiFePo4 - Lithium Iron Phosphate. Same 48 Volt unit will run about 6 $50 gold coins. or about $6,000 CAD plus shipping and import fees. They are about 1/2 the weight. Good for racers.   Good for shipping prices.

LiFePo4 batteries are a smart choice because they are specifically designed for this purpose and have a much longer useful life.   LiFePo4 batteries have an 80% discharge rate and are rated at 2,500 cycles. Beyond that their efficiency goes to 60% (STILL more than lead acid) for a further 2000 + cycles   This translates to longer range on every use. LiFePo4 batteries have already two to almost 3 times the life of regular deep cycle, and that cycle is 30% more range.

45 miles per deep discharge on 6 Volt Golf Carts.
90 amps per deep discharge used, then replaced..
750 deep discharges

45 x 750 = total 33750 miles of electric travelling before you replace your batteries.
About 3.5 cents per mile. For battery cost.

For LiFePo4 batteries it would mean

165 amps to total discharge
80 mile range. Almost double the range from the start.
2500 cycles
80 miles x 2500 cycles = 200,000 miles of travel per battery bank.
about 3 cents pr mile over the long haul A savings of a whopping 1/2 cent per mile travelled. Is that a big deal? Well, when you figure you just saved 1/2 cent for each one of the 200,000 miles you just travelled, that means you saved 100,000 cents. Work the decimal to the left and you get $1,000 savings over the projected number of 2500 cycles.

If you can afford it and you are really encouraged to waste less and have to have the latest in technology, these are the way to go. But they will come down in the future.

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