switching from diesel to electric propulsion

[xiam8992]

Originally Posted by valhalla360

Assuming you are willing to take the batteries down to 0% that means you need to be able to make 4-5kt on around 1.25-1.50hp. Calm water with a nice tail wind...maybe. Otherwise, expect a shorter range on battery, slower speed or running the generator a lot.

If you want to maintain at least 20% reserve, you are down to around 1hp available to meet your speed/range expectations.

I think it would make more sense to double or triple the battery bank and go with a smaller generator. With say 24kwh of battery bank, you could run at 5kw, maybe doing 4-5kt for 4hr for a 16-20mile battery range. If you know you will be traveling further, you could run a 3kw generator. Over 4hr, that would give you an extra 12kwh to get you up to 6hr at your desired cruise speed or about 24-30miles. After that you could continue on reduced power until the generator runs out of fuel.

Let us know how your range testing goes. Please include current, wind and wave conditions.

Capacity is 4 x 7200 Wh = 28.8 kWh

[valhalla360]

Originally Posted by xiam8992

Capacity is 4 x 7200 Wh = 28.8 kWh

That's a lot more reasonable then.

Still please share the test results.

[xiam8992]

Originally Posted by valhalla360

That's a lot more reasonable then.

Still please share the test results.

Thank you. Of course, I will share the results of the first test runs. Alas, this won't happen before March or rather April.