Hi John
Thanks for you reply. To be honest this has got all so confusing and there seems to be so many options and very very different prices.
I have contacted quite a few different suppliers and i have prices from the low thousands with no batteries to the $150,000 - $200,000 usd from one company recommend by a user here. (i think they just did not want the business shame on them).
It also seems to be not clear on which systems to use re- AC vr PMDC vr DC etc... so for the layman its super hard to know what to buy.
I have contacted both Torqeedo and Ocean Volt. Both systems are pricy but their kits do seem full featured and good systems so not complaints there.
Having said this and doing all this research i see there are ways to build systems at a fraction of the price. One thing i am very mindful of is resale value as this a new yacht and i am not planning on selling but you never know the future. If a potential buyer or a surveyor thinks the system is a bit mickey mouse then you could potentially loose a lot of value.
We have also found walk on solar panels with sun power cells 300w each and we measured up the the salon roof and should be able to get 3kw on there. Yes i know they will get shaded but we should get at least 50% while sailing and more mored.
One thing we have found is locally made LifePO4 batteries that seem to meet all the requirements we need at really really low prices. This is straight from the factory. The company is contracted by large Japanese companies to make there batteries and a fiend of mine who is making electric vehicles put us on to them. This is a dream as we can now have the battery bank we would normally only dream of.
They are so cheap even if they do give up i can just replace them.
Here is the kicker tho some of the big systems do not seem so keen to sell you there systems without batteries. so i am back to square one
So i would put it to the group a little different. Lets say i wanted to run 2x 10-15kw motors and as i stated i can get lifePo4 batteries in any config and size i need what would you guys suggest to do in the form of motors, controllers to make up a fully working system? lets not get into sizing of motors etc. The systems could be either shaft drive or sail drive or even pods. We wold prefer shaft though just so we can run kick up rudder and this cat has dagger boards so it should be possible to beach her is i need to.
This is a 58ft catamaran so space is not to much of a issue either.
Love to hear expertise from people that have done it as we are really novices in this area.
Regards
Hamish
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Posted by: hstalker@gmail.com
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