diy solar

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  • Post in thread: how much inverting power would you need to run your whole house 100% of the time

    Here's a graph for power factor on our main incoming supply of the house Guessing all my energy efficient junk isn't so corrected
  • Post in thread: Any Thermal Management Issues with Deye SUN-16K-SG01LP1-EU?

    Yes theoretically but it would need a cool environment as you would be offloading something near 1000w of heat
  • Post in thread: Post your Ground Mount Setup

    That was what I suggested earlier it would greatly increase the strength of the fixings and likely give a little more weather protection to the posts
  • Post in thread: Sizing a hybrid system for Philippines. I have more info now.

    No the charge controller would be built into the inverter in this case this is just over-current devices, fuses and surge protection, it would be quite interesting to see what brands they would use to charge $550.
  • Post in thread: New here, component question

    @Watt am I doing? I looked around the forums looking for UK suppliers and came across this thread @SeaGal (sorry to tag you but you likely have alot more knowledge than me concerning the uk) made a post a few posts down that should give you some better answers as well as some supplier names I...
  • Post in thread: My first system

    Also look at AC and DC spd's
  • Post in thread: Communicating over MODBUS to a PowMr Inverter

    I'm using a baud rate of 2400, I haven't yet managed to configure settings as there's a specific register I'm yet unaware of that controls input of password and disabling password to allow changing of settings remotely. Full list of registers I'm using can be found here...
  • Post in thread: how much inverting power would you need to run your whole house 100% of the time

    So your not offing inmates from limestone then? They had me interested until you said this Insects here are a major issue we have to sweep literal tonnage off the patio some mornings. That's like 7 months of the year
  • Post in thread: Any Thermal Management Issues with Deye SUN-16K-SG01LP1-EU?

    You can interpret them like that indeed but most houses wouldn't have a constant load, it likely fluctuates IE most of the day my house uses 400w at times it might spike to 4kw but it mainly runs at 400w so the inverter has chance to cool off. In your case it's more commercial IE your mining...
  • Post in thread: Solar Assistant vs. Home Assistant

    So this may be of interest from what I read the sol-ark registers are similar to the Deye ones with some minor changes it should work using an esphome device though if you wanted really reliable info it best to connect to the esp via lan rather than WiFi. This is single phase...
  • Post in thread: Solar for a school farm

    As a retired UK electrician I would have to agree with the above, even if you could do a better job than many UK sparks the main issue would be liability. Kids will be kids and god forbid if something were to go wrong, the full weight of the law would be brought against you, a DIY home install...
  • Post in thread: Long run (1400ft) Fiber Optic Cable vs Starlink Internet?

    Yep if you are to install underground make sure to use RTRC
  • Post in thread: newbie question about resistance

    6 mΩ is more likely the resistance of your test leads rather than the cable, 1m of 25mm² cable should be around 700µΩ.that's why I wanted to be sure your talking about mΩ rather than MΩ
  • Post in thread: Beware of the APEXIUM BOX Connectors

    Only thing I'll add, not in his defense but just to correct others. The washer we thought we saw was in fact just light passing through the threaded hole, the blown up photo actually made it more unclear.
  • Post in thread: EG4 18Kpv fried PV input

    Hey hey don't get me wrong I was arguing for decent torqued down screw terminals Vs tiny sprung busbars but all my points were rebutted though sadly I didn't make any mention of crappy mating surfaces. I still actively search for electrical hardware with screw terminals when purchasing goods...
  • Post in thread: Solar Fan Connections

    Yep those things are about as much use as a chocolate kettle from my experience, I have a stack to torture test on my workbench after my neighbour nearly killed someone with his. I'd highly recommend not using it.
  • Post in thread: Building my own shunt

    From what I can see most of the work has already been done as far as registers and modbus and the big thing is it's available here which pretty much all the recommended ones aren't. I'm not that interested in the data to look at Bluetooth isn't an issue its more being able to use it for...
  • Post in thread: EG4 18Kpv fried PV input

    It's a tricky one that best get in contact with SS I know Jess said they were out of stock but even if you could find a replacement part you would have to check how that would effect your warranty incase something else happened down the road
  • Post in thread: few questions about solar power....

    Be careful with pre made cables if they aren't specifically made for purpose. If I was in your shoes I'd buy the parts individually and a set of hydraulic crimpers and find a friendly handyman to make them for you with the crimpers and a tip as payment then if you need any cables in the future...
  • Post in thread: Thoughts on a mineral oil bath?

    I always kinda forget Ali I'll take a look tomorrow when it's not midnight. Ive been reading the local electricity regulations and requirement so just got round to pricing up the system and starting a list of components, it's currently half the cost of my wife's credit card bill I have to pay...
  • Post in thread: Solar Assistant vs. Home Assistant

    Considering the work they put into the settings cards for home assistant I would hope they work, seems like they have all the registers figured out seems pretty nice tbh I'm still undecided on going Deye or Solis after looking at this I'll need to take a look how far they've got with esphome and...
  • Post in thread: EpEver ,an 6415 volts vs MPPT

    Looking at the manual now voc of 3 panels shouldn't be an issue I'm wondering if it's one of epevers weird charging characteristics they have a weird thing with bulk charge reconnect voltage that could be possibly causing it but it's a question that's sadly above my pay-grade I'm afraid.
  • Post in thread: few questions about solar power....

    None of these solar panels are 300w I would struggle to believe you if you said 50w sorry. Here is a 18v 30w poly-crystalline with a CD for reference
  • Post in thread: Is it common for rodents to chew PV cables on ground-based solar panels?

    We have squirrels that eat our fibre and my outdoor AP POE cables fairly regularly, I think I'll be using metal flex conduit for my PV lines as they will likely have a nibble and at 300ft runs it's likely a ton of trouble if they do.
  • Post in thread: few questions about solar power....

    380w mono half cell with cd for reference Your panels are most definitely closer to the 30w in size.
  • Post in thread: The plan so far, thoughts and suggestions please

    The Solis specifies certain batteries are supported not sure how much it would like having a 15s masquerading as one of its supported types. I've been reading there can be issues if the BMS's don't talk to each other but it was late last night and forgot what they were. The Huawei can...
  • Post in thread: few questions about solar power....

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  • Post in thread: Watch out for vandals

    Amish can't sit in them but if they mcgyver the controls so they can walk beside and control it I don't think it's an issue, you see them regularly using forklifts that they have bodged the controls to enable them to use next to said forklift. No idea about light switches though personally I try...
  • Post in thread: Not addicted to solar, just the data and monitoring

    It's becoming more and more simple and the internet is full of communities, guides, YouTube videos on the subject it will take time to set up but that time would be saved in the long run by the fact you wouldn't have to keep switching apps, the above post by anx2k is literally the beginning of...
  • Post in thread: Solar Panel price Soaring after June 6th?

    Dirt, waygu sperm or precious metals
  • Post in thread: Next Project is this the correct way of thinking?

    It is standard i was just being uninformed and overthinking things i just took a good look and my efficiency code calculations and the logs coming from the controller and worked out the loss was coming from the charging circuit. Seems even though I limited the grid charging to 2amp the system...
  • Post in thread: Stumped: Can't figure out these dips / fluctuations in power graph

    Is this off-grid, are you charging you batteries during the dips, what loads are you using? There could be many reasons for the dips not just clouds your panels will only produce as much as you can load them, if your adamant that there's no clouds I'd put good money on your load dropping off...
  • Post in thread: Solar Assistant vs. Home Assistant

    Noted !! The Solis is pretty well worked out also, though unless I want to hack the WiFi dongle that comes with it I'll need to find some proprietary connector on ali if I want to build my own esp comms device.
  • Post in thread: How can I use Hyundai EV batteries for stationary use?

    I've noticed BYD modules coming up for sale here recently around 25v per pack but the busbars BMS wires are pretty much exposed so converting to 48v and adding your own BMS seems trivial the only issue here is price, people in Thailand don't seem to understand pricing on the second hand market...
  • Post in thread: Going full electric on a Montgomery 17 sailboat

    Probably not cheap but I'd guess solves the solar panels issue. https://www.hallberg-rassy.com/news/news/solar-panel-sails-2021-04
  • Post in thread: Not addicted to solar, just the data and monitoring

    My main energy dashboard for PV I have alot more data in other tabs but this one is reasonably pretty Lots more power monitoring coming next week.
  • Post in thread: EG4 18Kpv fried PV input

    Pretty much everything has exposed conductors I know the terminals are obviously exposed but even so they don't seem to take all that much pride in their work. Couple things that caught my eye especially with the current washer epidemic the neutral lug I marked in green is it making contact...
  • Post in thread: Settings

    Keep an eye on the battery voltage, best case scenario the controller and panels charge more than you use and there's nothing to worry about, worse case the PV cells can't keep up and over discharged the battery. Either way I'd highly suggest a better charge controller, something like the epever...
  • Post in thread: Not addicted to solar, just the data and monitoring

    Yep totally local I can pull some data from the cloud for solar forecasting so I can discharge my batteries before good days and pull in weather forecasts but everything else I use is local I even tend to write my own firmware anything I can't flash myself gets put on the naughty side of my...
  • Post in thread: Our 10.6kWp grid-tie hybrid system in sunny Thailand.

    Nice setup, hoping you can answer a few questions since you have some experience on the matter. How do you find temps with the Lifepo4 cells I went FLP with my off-grid system but the batteries were only a backup for power outages now I'm looking at a larger system Lifepo4 seems the way to go...
  • Post in thread: Can I Use Breakers Instead Of Switches And Fuses (For The Time Being)?

    Personally I'd suggest going real old school ceramic switches and fuses it's likely still sold where you are, fine for DC and likely more reliable than any breakers or modern switches that are available
  • Post in thread: Has anyone tried to use SRNE (Modbus ?) communication protocol with MakeskyBlue, PowMR or EASUN SCCs ?

    I'm away from home ATM so poking around my own code would be tiresome and possibly problematic but what I can tell you is I use a max3232m to convert from rs232 to uart I vaguely remember much of the hardware being described badly on the odya github tx/Rx being mixed for starters though with...
  • Post in thread: Moving around large solar panels

    It's literally a ground mount system
  • Post in thread: Ground rod specifics

    I'd be more inclined to go overboard and try prevent death than just meet local regulations, especially here where I live.
  • Post in thread: Mount DC breaker upside down

    Old thread I know but I was looking for info on this for another thread and came across this one and thought maybe this would be informative. I'm pretty sure I read that certain breakers have a failsafe that becomes molten and has to drop from top to bottom so orientation does matter but maybe...
  • Post in thread: Panel Monitor Before Inverter

    It's alot of work and I really mean days and days of research to get set up effectively but it solves the running about, I use home assistant and automate my load control. So depending on how much power I draw from the grid a computer in the house switches on and off devices to constantly keep...
  • Post in thread: Am i buying a decent hybrid and is it legitimate advice needed,

    Then its worthless, if you have a house fire the insurance will do its best not to pay out. Just a warning is all.
  • Post in thread: Complicated whole home backup - ideas?

    There's many ways to skin a cat as they say but since I've used it for years I'd like to push Home Assistant, not only would you be able to switch the genset on via automation when you needed it but you would also be able to control pretty much everything in the house and have access away from...

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