New to the group please pardon my ignorance, I am trying to design a system for my sailboat

I appreciate any feedback that the group can offer
i plan on running my mini spilt ac which draws about 800-1000mwatts, computers and misc items which is another 500 watts average ..
I plan to use 2- banks of lithium iron batteries 9how many per bank would you suggest
i have enough real estate to mount 6 340/18v panels if needed
i need some help on the system
thank you in advance
i plan on running my mini spilt ac which draws about 800-1000mwatts, computers and misc items which is another 500 watts average ..
I plan to use 2- banks of lithium iron batteries 9how many per bank would you suggest
i have enough real estate to mount 6 340/18v panels if needed
i need some help on the system
thank you in advance
Comments
Using an efficient inverter mini split with a high SEER rating and linear compressor, will reduce the overall battery capacity needed, they do however cost more but so do the batteries. What nominal DC voltage are you looking at?
Second system 1890W 3 × 300W No name brand poly, 3×330 Sunsolar Poly panels, Morningstar TS 60 PWM controller, no name 2000W inverter 400Ah LFP 24V nominal battery with Daly BMS, used for water pumping and day time air conditioning.
5Kw Yanmar clone single cylinder air cooled diesel generator for rare emergency charging and welding.
Underway, the varying shadows from masts and stays pretty much will shut down any PV harvest, because the entire panel needs full sun. At anchor, with careful planning, you can set panels where they will be unshaded.
All calculations you get from here will only be for unshaded panels, any shade, even from a stay over a corner of the panel, will severely impact your harvest
Wind generators are noted for being highly hyped as to their output. Hopefully on a sailboat, you will have enough wind underway, for it to be useful
And don't forget, inverters are also made in models that run from 24V systems. Don't get stuck in a 12V box if you need lots of storage capacity
|| Midnight Classic 200 | 10, Evergreen 200w in a 160VOC array ||
|| VEC1093 12V Charger | Maha C401 aa/aaa Charger | SureSine | Sunsaver MPPT 15A
solar: http://tinyurl.com/LMR-Solar
gen: http://tinyurl.com/LMR-Lister ,
Second system 1890W 3 × 300W No name brand poly, 3×330 Sunsolar Poly panels, Morningstar TS 60 PWM controller, no name 2000W inverter 400Ah LFP 24V nominal battery with Daly BMS, used for water pumping and day time air conditioning.
5Kw Yanmar clone single cylinder air cooled diesel generator for rare emergency charging and welding.
The LFP batts are a good choice, but make sure you do not end up with another chemistry that may price good but have increased danger. Need 3 ways to charge. Be very aware that a wind gen can easily overcharge a battery to death. Test everything 3 times, at least.
Make sure you can buy spares easily for all systems. It will not be easy to get them but it can be done. Get a Ham license. Even though this may sound old school, they are still out there and can be the only way in the back waters.
Running a split and electric refrigeration will be one hell of a challenge on a small boat. One way to make sure that the refrigeration keeps going, is to cool the box with a dual plate system or dual plumbed plate. This gives you an electric compressor and an engine driven for redundancy. The 2 types of compressors will give you a faster charge on days where you may run the split.
Hopefully you are going to a place (like Mexico) where the C19 has not ravaged the cruising options. I know 3 different boats that went thru hell recently trying to get in and out when their visa was up. Lot's of great memories here. Fair winds to you!
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