diy solar

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  • Post in thread: PG&E \ Off-Grid System Design

    I don't think one needs to tell pge that they plug in a battery charger and charge batteries.
  • Post in thread: hwy17's Orion battery build

    Neat project @hwy17 thanks for sharing/documenting. Whenever I'm at the hardware store checking out, the owner always asks if I found everything. And I always say no. He says, "What didn't you find?" and I reply, "No idea. I'll know when I get home though."
  • Post in thread: Off grid incinerating toilets. Who uses one?

    Buckets/coir/straw works extremely well, but I wouldn't want to deal with that outside of my family. These days it's only me who ever uses that system. The flush toilet is the only thing that goes to the septic, which significantly lowers the load (joke) it needs to support. Everything else goes...
  • Post in thread: Well pump

    I use both Dankoff for above ground spring cistern pumping, and Franklin Fhoton for my well. The Fhoton system is very well built. It works direct from solar, but I bought and extra box that allows you to use 120 or 240. It's the 3p pump with soft start. Not cheap, but neither is Grundfos.
  • Post in thread: Fuse Holder

    Built some fuse holders to go inside some Sunpower batteries I am rebuilding. The straight tab on the left and the s tab on the right have female threads built in - the nuts on the bottom just hold the insulator and hence the fuse is supported. So, creep of the fiber insulator will not cause...
  • Post in thread: My jk 200amp bms didn’t come with bolts. What’s the size?

    OK thanks. My jk bms did come with terminal screws. The are phillips head.
  • Post in thread: Prepping for impending grid outage

    If you look at studies of the black death in the middle ages, you will find that most economies continued to function as best they could, and that in general, things did not run amok, relatively speaking. Those scenarios are vastly more extreme than what have been presented to the populations...
  • Post in thread: Why is bulk/absorption voltage used?

    I think the discussion here should be best taken to the optimal charging protocol for a single cell, not a series combination with a bms. If the 3.45 (or whatever) bulk limit, the 3.45 (or whatever) absorb, and 3.35 (or whatever) float is chosen because of balancing issues, so be it, but if it...
  • Post in thread: help choosing well pump setup

    I have a Franklin fhoton helical rotor setup and it's been flawless. Takes cd from panels to the controller box. I also bought the 120/240 box to allow ac power, and I've just been using that with an extension cord. I have the solar panels, just haven't mounted them yet. Soft start, water is...
  • Post in thread: Bricked xwpro?

    Got it, thanks. The insight has been powered by a separate power source for all of my tests/experiments. Haven't got to try anything today with the rain - didn't feel like covering the laptop with a bag to make the trip to the garage... :)
  • Post in thread: Connecting JK-BMS to Inverter - Any major advantage?

    Seems proper to me. For me, one bms com advantage would be to alter the charging limits of the scc or genny if one or more bms goes down. I don't know how to make this happen with schneider without a bunch of programming wizardry which is not my wheelhouse. For an all-battery cumulative soc, say...
  • Post in thread: XW+ Pulsing with Air Fryer Load

    Maybe it is agitated with the presence of two xwpros in a nearby building....
  • Post in thread: Will PV panels get any cheaper?

    So what's the price in guineas and shillings? :)
  • Post in thread: automate power on/off of water heater

    Yes you do it indirectly by using the battery/mppt V. I don't understand all the confusion. You dump load with a relay at float or a bit below. If it can float from solar, you dump. If not, you dip, relay opens, and no dump. What am I missing?
  • Post in thread: peukert Exponent vs SOC

    Makes sense - thank you.
  • Post in thread: Jk inverter BMS - voltage loss?

    Is the bms off or discharge disabled when you take the reading? If so, that could make sense.
  • Post in thread: My jk 200amp bms didn’t come with bolts. What’s the size?

    I know there are some generic torquing spec for electrical connections for nut-on-lug types, but usually these are for rigid posts/studs, and not some much weaker pcb mount stuff. I think the jk terminals are m6.
  • Post in thread: Grounding is a Conspiracy!!!!!1!!!!

    I guess I watched Stefan's video to see how long it would take for me to disagree with something, as an electrochemist and neurobiologist. 1:30 or so. I do walk around barefoot a lot though.
  • Post in thread: Charging One Off-Grid System from Another

    Thanks. Sounds right to me - seems like the ac2/gen input is more limited, in a good way, in terms of the system considering it an input only (no selling back....
  • Post in thread: Solar advice for my hot tub

    While sunshine eggo is not wrong, let me offer an alternative scenario. A couple of years ago, a neighbor offered up two solar thermal panels. Not evacuated tube, just the copper pipes with fins in a box with glass. I got them home and amazingly they didn't leak. A year before, we bought a...
  • Post in thread: XW+ AC Coupling

    OK - I will check to see how it's set when I can drag my laptop out to the shed. Thanks,
  • Post in thread: hwy17's Orion battery build

    That's what I use too...
  • Post in thread: Anybody tried new JK BMS with inverter communication support?

    If it resets to factory, I don't see how it is a safety issue if the charge/discharge being 'off' is factory too.
  • Post in thread: Recovering bricked / bootloader schneider context XW inverter with InsightHome

    Wetware reflash.....
  • Post in thread: Martians

    Do they mars ground their systems with marsing rods?
  • Post in thread: Solar cable sizing calculator surprise!

    10awg is ~1ohm/1000' so the above looks correct to me.
  • Post in thread: Higher V Pump for Direct DC to Pump Solar Thermal

  • Post in thread: Anybody tried new JK BMS with inverter communication support?

    Not exactly, but just connecting up one jk, I can see it in insight local. Now, I really have no need for a bms to tell my inverter/charger/charge controller what to do when I can tell it what to do, so planning on operating in open loop mode with V control. I've never seen any documentation...
  • Post in thread: Recovering bricked / bootloader schneider context XW inverter with InsightHome

    Yeah, like a little hole you push a pin in to set everything back to original firmware. Could have used that a couple months ago when everything was so bricked (in a pro) that all insight selections, including restore defaults, was greyed out. In the end I believe it was BECAUSE I was using an...
  • Post in thread: Recovering bricked / bootloader schneider context XW inverter with InsightHome

    Certain fungus can work like ctl alt del for wetware
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