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And to keep on topic, here is my recently completed panel mount. It is 100% scrounged tube and hat channel plus some large galvanized angle for the base that sits on top of the concrete shelter. It is held to the shelter lift rings with steel cable. Each row of panels tilts from 0° to 50° in...

Here you go. You can see the door hinges welded at the tops of the vertical pipes. The top side of each hinge is welded to the cross bar so the cross bar and drilled plates tilt with the panels (about the hinge pins). The tilt is set by bolts through the pipes and drilled plates. Easy enough...

I would like to publicly thank Pete Thompson at Morningstar for resolving my issue in the absolute best way possible. TL,DR; Morningstar Technical Support has the ability to do what they need to do to solve your issues, including replacing your ancient hardware! Thank you, Pete! The...

Does this qualify as seasonal renewable energy storage?

OK, so I got the first compression frame completed. This is the 4S 230Ah pack with one 1/4" sheet of Poron 50-15250 foam as a compressing agent. You can see the separator sheets from Docan sticking up between the cells. The sides and bottoms of the cells have extra material to keep from...

Having just joined the forum, I will admit that it stunk reading all 36 pages of that thread. But I recommend that you do so because that particular oyster contains several pearls. I saw many places where people couldn't do math or physics or much of anything except post incorrect information...

Oh, yeah, here is one of them. The two BMSs came with 4 gauge aluminum cables. Those are getting swapped to 2/0 with everything else.

This one holds 32 230Ah cells with springless compression frames. Each frame holds 8 cells so I can lift them if needed. Room for the BMSs on a board on top of the cells. It was a bit pesky to complete the wiring that way and not drop a wrench on the cells, so I printed the red covers and...

I ordered 36 230Ah cells from Amy Zheng at Docan. I paid on 15 April, they shipped on 22 April, and I received everything by 27 May. That's five weeks shipping from China to Florida, including several days on a UPS truck across the USA. I bought the 36 cells, three JBD BMSs, and 36 flexible...

All I saw was a bunch of crusty jokes.

The general solution to varying emissivity is to stick a piece of black electrical tape on the object, then use the IR camera to measure the temperature of the tape.

I have done plenty of "shade mitigation" with a Stihl MS-460 chain saw. I wonder if I could patent that?

Please don't ever put Florida in any group with Chicago or New York.

More insults.... I was going to provide more information that might help you, but that would be crazy. The military specifies the standards they expect their products to meet, then they pay for a product to meet those standards. You don't seem to understand that you are asking why everybody...

18650batterystore, perhaps? https://www.18650batterystore.com/products/eve-lf280k

You are missing out on the Zen of welding. Keeping a decent bead while shaking the slag out of your flip flops is only possible by clearing your mind and becoming one with the process. These flip flops recently broke, but you can see the small round holes from slag dropping into them while...

I am glad to hear that you are doing better, Steve. I'm watching my 95 year old mother go through dementia and a failing body, so getting old isn't always the best way either. Going out like Clint Eastwood in "Gran Torino" wouldn't be the worst way. This reminds me of my favorite morbid joke...

Here we go again! I tested the 0.25" Poron foam and found that one sheet per four cells is what you want to use for cells that specify ~12 PSI compression and up to ~0.5mm expansion per cell. I used one sheet in my four cell battery and two sheets in my eight cell packs. I am confident that...

Stainless is generally a poor conductor of heat. Nickel silver is much better. I struggled with this problem and was able to solve it with a storm shelter cut into a hill. I know you can't do that directly, but perhaps you could build up a sand hill that will drain well. I have my panels...

Holy cow. We keep our central AC at 78 during the day and 76 at night. We have found that AC makes you soft, so we compromise and keep the humidity down during the day and sleep well at night. I'm usually nekkid with one sheet halfway over me, and my wife has on jammies, a sheet, and one thin...

I have had a rain barrel for years at our lake camp. It is filled with water from the gutter and then filtered through a 20 micron and then .35 micron filter. We don't drink it, but we do use it for hand washing and other needs. I came across a very ingenious way to keep from filling the...

Have you considered firing the people who made those rules? I guess they are probably the same people who think that protectionist measures such as taxi medallions are a great idea. Why is it important that you be licensed if your work passes inspection? I am sure that the dudes pouring...

When you poke your meter around at it, be very careful. The specification sheet for the YMGI Solar mentioned above clearly shows that the input DC has to be between 250V and 400VDC. It also shows that the power supply is 310VDC. At those voltages, I'm leaving the hood on my mini split.

Adding things that increase frontal area will almost always increase drag. You can reduce that added drag by shaping your addition. The best way to reduce drag is to hide your extras behind the primary frontal area if you can. The idea of a "hump" is good since the air has to move up and over...

I think the camel already tried to stick his nose under that tent with "The Affordable Care Act." The government told people that they were required to enter into a private contract with a business (buy health insurance). That part eventually got repealed, but I'm not sure how it all played...

Answering threads with a non-answer just to get them "answered" is not productive. It is far better to let them cook for a few days to see if they get a legitimate answer. If not, then bump them with a non-answer.

And to be honest, the yeast they could do is leaven the situation with better jokes.

Run away. Nobody makes a 310Ah cell. Just shipping on 32 cells from China should be several hundred dollars. Expect to pay roughly $4,000 US for 32 302Ah (EVE) or 304 Ah (CATL) cells delivered.

OK, so I bought the Poron 50-15250 sheet from McMaster. I used the chart provided by the manufacturer to estimate the compression for my 4S battery. I have cut most of the parts for the frame but have not put it together yet because I have not drilled all the screw holes. This battery will...

If you have a tractor available, you can pull your wire or conduit directly underground using a modified subsoiler blade. I pulled 120 feet of 1-1/4" conduit 20" underground with my small Kubota. A few passes with the blade alone to cut tree roots, then hook up the conduit and pull it in one...

I found a patent document for that generator. The V3 model has a continuous ramp. You set a ball at the top and start it rolling downhill and harvest the free energy. His first model used a staircase because it was easier to build, but the output had voltage spikes due to the ball dropping...

They are generally not numbered, but yes, they go in order on the connector.

Bananas are made in thirds.... Over here liquor and wine is now sold in 750ml (not 75cl) bottles (~25.4 oz), which is conveniently close to "a fifth" or 1/5 U.S. gallon (25.6 oz), which was the standard size before they realized they could swindle us out of ~0.2 oz of spirits by simply...

You say 200Wh per night at 24v, so that's maybe 8.3Ah per night, so that's about 1 Amp over eight hours.... Your 1 Amp at 24v is 2 Amps at 12v, leaving only 1 Amp for charging your battery while you are using the device. That now would be ~100 hours to charge from dead empty to full, so just...

One more time... more cells will not create more pressure. They all create the same amount of pressure. If they are constrained in a rigid case, they do not expand (they physically can't). What would be expansion is converted to pressure by the rigid end caps. The end caps and all of the...

This is what I refer to as a Confessional Debugging. It starts with, "forgive me, brother, for I have coded." The colleague does not have to be more experienced. It could actually be your cat or dog. All you have to do is explain your design to something else and think that it is listening...

I agree with everything you said, except that I think that every forum member (of any online forum) has a duty to spend the money of other forum members. That is truly the reason that people join forums; they can't figure out how to spend their own money! OP - Remember the tips from...

Some disclaimers: Like @AndyRonLI and @curiouscarbon both said, this should be taken for its entertainment value only. You are getting free advice from your "best internet friend" who is neither an aerodynamic engineer nor a structural engineer. Do not mistake any of this for actual...

I usually search for the main author's name and a keyword or two. Eventually a PDF will show up.... The PDF download link worked for me. https://zh.booksc.eu/book/23466390/628175

OK, so the bigger one just finished. It looks much better to me. Keep in mind that this shows air velocity and direction, not pressure, force, lift, or anything else. Also keep in mind that this represents less than one second of "reality." The RV instantly appears in the air, and it is...

I am pretty sure that JBD offers several options in the 200 Amp neighborhood.