diy solar

diy solar

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  • Post in thread: Post your Ground Mount Setup

    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...
  • Post in thread: Post your Ground Mount Setup

    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...
  • Post in thread: Huge Shout Out to Morningstar Corporation

    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...
  • Post in thread: Storing heat in bricks

    Does this qualify as seasonal renewable energy storage?
  • Post in thread: Another Cell Compression Thread, this time about foam

    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...
  • Post in thread: Hijacking Threads

    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...
  • Post in thread: Another Cell Compression Thread, this time about foam

    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.
  • Post in thread: 30kwh Lfp Explosion in Germany. What do you think?

    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...
  • Post in thread: Our NEW GO-TO LiFePO4 vendor...09.20.21

    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...
  • Post in thread: Dad Jokes (let's hear your worst! ;-)

    All I saw was a bunch of crusty jokes.
  • Post in thread: Back feed for snow melting?

    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.
  • Post in thread: My Friend Was Banned For "Self-Promotion?"

    I have done plenty of "shade mitigation" with a Stihl MS-460 chain saw. I wonder if I could patent that?
  • Post in thread: Use of Flexible Non Metallic Conduit Inside

    Please don't ever put Florida in any group with Chicago or New York.
  • Post in thread: Welded posts

    18650batterystore, perhaps? https://www.18650batterystore.com/products/eve-lf280k
  • Post in thread: What was your most interesting recent non solar project?

    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...
  • Post in thread: Steve_S update.

    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...
  • Post in thread: Compress or not, flexible busbar or not

    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...
  • Post in thread: Thoughts on a mineral oil bath?

    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...
  • Post in thread: What Mini-Split did you use, and Why?

    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...
  • Post in thread: Cistern

    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...
  • Post in thread: Anyone have any experience in Solar DIY in New York State? I see bad things on the horizon....

    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...
  • Post in thread: Hacking DC supply into DC inverter mini split.

    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.
  • Post in thread: Solar "Hump" for aerodynamics for Class A RV

    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...
  • Post in thread: Anyone have any experience in Solar DIY in New York State? I see bad things on the horizon....

    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...
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