diy solar

diy solar

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  • Why is solar so damn difficult?

    I'm no stranger to learning and diy. I built the house I'm living in with my two hands and it took a lot of planning and research - framing, electrical, HVAC , drywall, septic etc. That was childs play compared to solar. No wonder the unsuspecting public easily falls prey to solar salespeople...
  • I did a thing! Sunny Island, growatt min ac coupled system

    hi guys, I finally got my system set up after 1 SOLID year of researching solar PV here there and everywhere and 5 years of solar home building research and planning. I built my passive solar house with pv in mind. No penetrations on the south side. The optimizer said 32° roof angle facing 4...
  • the rapidly changing inverter landscape

    about a year ago when I joined, it was the Schneider xw pro that was popular for low frequency, and the growatts and voltronics were popular for high frequency off grid. Now I hear almost no mention of them. That's how quickly the landscape is changing. Today 6000xp is extremely popular and we...
  • What the bloody hell is wrong with me?

    I told my wife I got a bonus and had to have a ton of self talk to not buy an 18kpv. I was looking at victron but their self consumption doesn't work in the USA. The only reason I would even want one is to seamlessly support ALL the loads in my house. She said "you spend so much on your...
  • My Solar PV journey is officially ending

    or at least going on a very long Hiatus. So I built a passive solar house- the roof is 35° slope facing 4° west. no penetrations, no shading. I built it to be perfect for solar panels. BUT, net metering ended two months ago before I could get in and I have spent the last two months trying to...
  • My pv journey is back on!

    https://diysolarforum.com/threads/my-solar-pv-journey-is-officially-ending.61214/ I had decided not to go solar due to the cost vs benefits. Well, after being on here a while and seeing some great deals, and doing endless spreadsheets and calcations, the decision has been rescinded! ? I...
  • Batteryhookup.com wow!

    These guys are something else. I was looking at their 20s packs then david poz made a vid on them and they sold out a week later. So when he made a vid on the 8s packs, with 10% discount, I jumped on them , far before I needed them. Good thing I did cos they sold out a few days later. Almost 3...
  • Another new hybrid inverter. Aims PIHY9600 660v pv input , touch screen, 15kw pv

    Such a great time for diy pv. Competition is heating up! Check this one out! $3600. https://www.aimscorp.net/product/hybrid-inverter-charger-9-6-kw-power-output-15-kw-solar-input/
  • AC coupling when battery is already at 100%

    spent an hour editing this and adding audio and it got messed up. not spending the time again. you can easily see whats happening. @sunshine_eggo wanted to know, what happens to the power when the battery is full and a heavy load turns off. the answer is here. first clip water heater turns on-...
  • Well that was a mistake! roof heat

    My shed's roof is white I was excited to add panels to the roof of the shed to see further cooling from the shading. I covered the roof with 6 bifacial panels with only a little bit of roof left exposed. Next day I noticed inverter temperature was higher than normal. What the hey? So I...
  • DeWalt 4500lb shelving $119 home Depot

    https://www.homedepot.com/p/DEWALT-Yellow-3-Tier-Wire-Steel-Garage-Storage-Shelving-Unit-50-in-W-x-48-in-H-x-18-in-D-DXST4500-W/303512198
  • Fortress renames their luxpower inverter to TRUE 12

    TRUE 12 ?? What could they mean? https://www.fortresspower.com/products/envy-12kw/
  • Is it the beginning of the end for Solark?

    For every solark thread or video I see on the Internet, I'm seeing at least two for 18kpv and 5 for eg4 6000xp. When the 18kpv was announced solark quickly dropped their prices. Now the 6000xp is the new kid on the block and they are everywhere! Where does that leave solark? It seems no one's...
  • Is this real or a hoax? California $0.00 export rate

    https://www.reddit.com/r/solar/s/90qbW3a8W6
  • What now???? 240v SPLIT PHASE inverters issues?

    so you guys convinced me to do an inverter/charger with batteries instead of generator for well pump backup. as a refresher its a 1hp pump that draws 22-25 amps startup and 9 amps run. leading contender has been the growatt 6000. its low frequency so it wont have any problems starting the...
  • 71.6kwh, $10k. brilliant, or dumb?

    https://batteryhookup.com/products/new-catl-modules-with-20x-3-2v-280ah-prismatic-17-92kwh-150-kwh?variant=43220156448930 these look like a good deal with free shipping. my question is - without disassembling them or breaking them down to individual cells- how minimally invasive would it be to...
  • free solar hot water panels!

    Very generous gentleman in Kansas offered me 10. For free!. don't need anywhere that much so I took 4 which should be more than enough. Each one is 4ft x10ft and weighs maybe 150lbs. He said if anyone wants some come get as many or as few as you want. He has 6 left. Let me know if you are...
  • Victron 48/5000 x2 or eg4 18kpv: which one are you choosing?

    For roughly the same price I can get 2x victron multiplus ii 48/5000 120v ,an ac coupled pv inverter, a grid meter, and a cerbo gx Or An eg4 18kpv, which already has a grid meter and DC coupled mppts, and solar assistant. The victrons will output about 8-10kw per mfg spec, and the eg4 will...
  • Experiment Parallel inverter non SYNC...what happen?

    found this cool vid on youtube
  • Powmr 51.2v 400ah stack battery for $4299 black Friday sale

    https://powmr.com/products/stack-battery-storage-51-2v-100ah Seems like a good deal for 20.4kwh, if it will actually hit it's specs
  • What box do I need here?

    I have an outside disconnect and an inside panel. I want to put something between them that will allow me to send power to two inverters. I can do another panel, I've heard of tap boxes, terminal boxes etc. These all cost about $400+ What's the best and most cost effective way to do this?
  • Do I have a big array grounding problem here?

    The whole system is connected to the main ground at the inverter. But then I just realized that the panels are sitting on aluminum frames directly on the ground ,so its like having a ground rod. Is this going to cause issues? Should I remove the ground at the inverter?
  • Are there any budget hybrid grid tie inverters that actually work?

    I've decided on a grid parallel hybrid setup that powers the main panel in connection with the grid but doesn't export to the grid. There are solutions out there! I would love to get a solark, or a Schneider ,or victron, but their price kills my ROI(my per kWh price is currently 13.2cents) So...
  • SMA unveils new hybrid inverters

    https://www.pv-magazine.com/2023/06/19/sma-unveils-hybrid-inverters-for-residential-applications/
  • I'm about ready to give up on solar

    Tl:Dr is there no aio that connects to the main panel just like a grid tie? Long story: I had paid an engineer for a design for a grid tied system then the utility removed net metering and doing the math grid tied doesn't make sense anymore. Now I just want a system that will pull...
  • Can this terminal be tapped?

    Bought some batteries and 2 of the 6 packs have a broken weld at the busbar. All the cells(8s) have welded busbars and bolted into one unit so I imagine it would be difficult to try to replace just the one. Im wondering if this type of terminal can be tapped? Or what can I do? Thanks
  • Nooo. Iotawatt no longer available for sale

    This is hard because I love this thing but the manufacturer has decided to no longer sell it. Damn. https://community.iotawatt.com/t/ending-production/5654
  • pv input power vs charging current?

    I'm exploring using an aio inverter solely as a charge controller. it has two mppts up to 500v. I can have up to 8000w of solar attached. but it says it has 80a max of charging, which at 57.6v is only 4600w. so does this mean that even if I have 8000w attached it will only ever charge the...
  • alternative to eg4 mppt100-48hv

    hi, this unit is out of stock at signature solar. are there any other 500v mppts in that price range? ($400) thanks
  • bms batteries but no bms comm with

    hi, looking at an inverter with no bms comms. the batteries will be lifepo4 with a bms . will this work? ie do i have to charge based on voltage? or will this still be able to work based on actual state of charge. sorry, Im new to this
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