All About the Solar | Sailing Wisdom Ep 44
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- Опубліковано 14 жов 2024
- Herby explains the solar panels and how they are tied into our electrical system. He also gives some pointers about cooking on a fixed stove while sailing and underway.
#solar
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Interesting set up. Have you guys considered ( Might have by now) adding a wind generator, to chip in to the power charging , specially at night, or overcast days?
We just added more solar. The wind generators tend to be pretty Loud and our little transom already has so much going on
TFS Good information on how your solar is set up. It sure works better than having to dock and use shore power. Happy sailing.
In solar it's all about your common regular watt usage which decides the size of your system. You should meter all the appliances and electronics you utilize in order to get an idea of your general usage per day. You should factor in using your electric motor for at least 4 hours at 4 knots motoring time.
Talking solar...
Town I live in is currently having a 4.6 acre, 4 million kW floating solar array built on the town reservoir. Electricity from it will power the water treatment plant they say.
As for boiling water or other cooking on non gimbaled stove, if in doubt please put on a pair of chest high foul weather bib pants & a pair of boots, just in case of an accidental spill on the cook.
Favorable Winds & Calm Seas
Seems like there would be a commonly available mast head mount for solar panels. Something like panels that also function as a radar reflector and could fold down to avoid obstructing the anchor light.
+SenatorPerry that would be perfect! I know they have started sewing solar panels into the sails as they always get plenty of sun but I worry about the wiring getting fatigued and causing you to need to remove your entire sail just because of a little electrical issue.
remember the OLD flip phones ? MARKETING . Beam me up Scotty !
Working my way through this book:
a.co/jdHKUWX
You have 500 and change amp hours on your batteries, but you have five agm. How are you stepping to 48 volts for the electric motor with only three 12 volt batteries in that bank and two in a different bank based on the battery switch?
The wiring job you have almost exactly matches up with the book linked above. I bet I have at least a dozen rewatches on your video comparing in practice what I was reading.
+SenatorPerry Thanks! Bob Blood is an awesome electrician, he's the guys that is responsible for the beauty in there.
The 5 batteries are hooked up in parallel for the house side (12v). The motor bank is separate, consisting of 8 batteries.
I will have to check out that book for when I need to tackle electrical jobs and out of Bob Blood's range!
Now you are learning why almost all sailboats motor 1/3 to 1/2 of the time.
Wait for the days of solar sail cloth. Just saying...
Yikes! Off shore without a gimbaled store/oven?! Just a matter of time.
It's been almost a year and we've been fine
Last five.
Just on your system design...
You seriously only have 300 Watts of solar power??? I'd say you need at least 1000. Panels on Ebay are cheap. 10 amps is very small.
On your main switch setup. You should consider using Voltage Sensitive Relays (VSR's) on each circuit to bypass the switch to charge each bank. That way, you don't need to watch your voltages, the VSR's cut off the battery circuit usually at 12.2-12.4 Volts. We use one to charge our engine battery, and to isolate it to protect it from discharge without having to worry about it.
The rest of the system should have individual main switches. A single main switch is an old idea and not how it's done in modern systems. Each circuit / battery bank should have its own switch, feeding to the main bus. This way, if anything happens in any part of the system, you can isolate just that part, and still have the remainder feeding your bus.
Thank you for your suggestions, but the system we have works for our needs. We don't have enough space or money for 1000 watts.
Panels now are at 80c per Watt delivered....and that's in Australia. We don't have much money either, but its very important to have enough generation.
Where does your dogge do his doggie dodo?
We take him to shore in the dinghy. But unfortunately when we left the Chesapeake, we also left Morty with my parents 😭
Its a pity you don't have a wind generator, cause those pants are LOUD.
Physics joke..
😂🤣