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1 year agoJust to clarify, he uses expanding foam which is much more manageable than spray foam.
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Cake day: June 10th, 2023
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What type of batteries?
The MultiPlus can act as a solar charge controller, do you need the extra MPPT devices for added capacity?
I’d leave the BMS until you get everything set up. To my knowledge, the only advantage of having the MultiPlus talk to the BMS is to get state-of-charge information, which you can also get from a shunt.
The Victron gear should just give the BMS’s all they can and let the BMS do the limiting once the batteries are full.
I don’t have any experience with JK BMS’s but they have RS485 so they should be able to talk to the MultiPlus. I’d wait for a better answer from someone more knowledgeable, or see if you can find the answer in the Victron manual. Maybe YouTube has some info. The OffGridGarage channel has a lot of Victron/JK content.
1·2 years agoYou’re right, you’d need a load for the panel to actually produce anything. If there’s nowhere for the electricity to go, it’s just a fancy looking piece of glass.
My only solar right now is on my shed, and it’s only 2x100watt panels, which charge a 12v battery. I started with a single 100w panel, and it wasn’t enough. It would frequently be shaded and total production wasn’t very good. I added the 2nd panel next to it, wired in parallel. The total output more than doubled, which tells me the 2nd panel, even though it’s right next to the other one, with the same big trees nearby, gets less shade overall.
So basically, you’re not going to get good data from a single panel. A physically larger array will be more efficient unless you get really lucky with the placement of the single panel.
What do you mean by a mains powered UPS? Do you plan on charging a large battery with the panels and having the ability to run the house off the battery?
Very nice.
I dig it.
Having random ends of the staples not go through the top pieces is the type of quality that I’m known to produce from time to time.
And for the record I have no idea what I’m talking about, but I pictured the stuff that guys in protective suits spray between wall studs, and wanted to make sure you knew that’s not what they used!