diy solar

diy solar

Most reacted posts

  • Post in thread: Battery Lithium Manufacturers sues YouTuber who tested batteries for 3 years with Defamation

    1,100 cycles is pretty shy of the 6000 most manufacturers say their cells will allow but no idea what soh is supposed to be at 6000 From the whole survey there's a few with similar scatter patterns but none seem to drop as much as these, many have very low scatter and fairly good soh but the...
  • Post in thread: Unable to deliver more than 5 amps without tripping inverter

    Are the batteries balanced? How are the banks connected in parallel to the inverter?
  • Post in thread: few questions about solar power....

    Even considering that it's illegal there I think that guy is smoking too much devils lettuce even if the panels are that price who's buying them? Like I said type in "solar cell" into lazada, longi/era cells should be around the 5000 mark for 400w if your ok with other brands nakita/ja/Trina are...
  • Post in thread: Eco-worthy 3000 watt hybrid No AC Output

    Is white neutral and black live in California?
  • Post in thread: Any Thermal Management Issues with Deye SUN-16K-SG01LP1-EU?

    So don't pay for the 20 year extended warranty on my Solis inverter your saying?
  • Post in thread: Emporia energy monitor is lame, can't get the data I want, ESPHome?

    So are you getting 1s data samples? I built my own meters with pzem modules and esphome but I don't think I can get the data down below 20s intervals because of the amount of modbus entries on a single bus unless I split all the sensors up onto individual esp32's which might be still cheaper...
  • Post in thread: Communicating over MODBUS to a PowMr Inverter

    Sorry the address might have been relevant information in my first reply, Its 0x05 the inverter is 2wire so RTU I didn't write the code I'm using so I'm unsure if it uses ASCII but if I remember correctly from debugging I think I saw 8 digit binary stings but I'm not 100% on that.
  • Post in thread: MC4 connectors a massive scandal

    Not really going to prevent galvanic corrosion the air is already in the fitting and the mixture of metals is what's causing it you need to expel any air around the crimp to prevent it, if using heat shrink around the crimp there's a good chance it wouldn't fit into the body then.
  • Post in thread: Victron SmartShunt alarm not audible?

    WT32-ETH01 would be the cheapest there's lots of companies producing those Ali should have a wide range most fitted with a wroom chip but those are just ethernet. Poe versions are fairly expensive I use a few lilygo T-internet-POE boards which are well made and only around $15 here but that's...
  • Post in thread: Voltage across 4 100w panels in parallel reads 22.4v, but the MPPT only reads 12.5v and won't charge (despite showing the "sun" icon)

    Sorry not familiar with renogy panels when he stated they were 12v I thought 12v, now looking at the spec sheet is can see they are 20v
  • Post in thread: Incompetence from Signature Solar & Solar Sovereign

    Hope no one is waiting on parcels to ship from Vietnam, pretty much every factory has shut there since the news of the US tariffs.
  • Post in thread: Not addicted to solar, just the data and monitoring

    I have ir blasters for all our mini splits but they are pretty useless on their own, I'm in the process of fitting clamp meters to all the house circuits including individual hvac circuits so I can check power usage and determine state I'll post something in the interesting projects thread once...
  • Post in thread: few questions about solar power....

    I doubt very much that it's metal more likely it's gypsum board that's being used to hide metal or poorly finished concrete and I doubt the home owner would want you to go cutting big holes from it. Sorry no idea what else to suggest, sadly Asian ignorance of safety is widespread the likelihood...
  • Post in thread: Not addicted to solar, just the data and monitoring

    The shelly pm series is a clamp meter and I believe relay so you can monitor and control the load.
  • Post in thread: HDPE Conduit

    Sdr17 is what they typically use here but as you said that's worthless for anything other than ground laid irrigation but sadly education is lacking here especially within trades hence why I end up doing everything myself or training lads on the job to work to better standards.
  • Post in thread: More home assistant example stuff

    It's had a recent update the card can pretty much be totally configured in UI now even a dunce like me can do it.
  • Post in thread: Eco-worthy 3000 watt hybrid No AC Output

    Oh it is.....
  • Post in thread: No-ox-id alternative

    Because if I want to prevent galvanic corrosion between mating surfaces dielectric would be a sure fire way to cause a hot mess it's fine for preventing corrosion around terminals but if you want to mate a tinned lug to a copper busbar or any type of current carrying surface you need it to be...
  • Post in thread: Poor solar production has my cheap junk finally come to bite me?

    While it was messed up it was grid+solar now it's just solar only. I was trying to turn off the display backlight to video the PV input and load on the device incase I had to warranty with Powmr and noticed all the settings were messed up. I've set notifications on my phone now if any settings...
  • Post in thread: Solar Panel price Soaring after June 6th?

    Is it that bad for the US? most things are at least double the price. Panel specifications are irrelevant here in asia theres no point in buying anything but the newest technology(likely they just look at raw materials cost rather than specs) a 600w bifacial works out at about $0.13 per watt...
  • Post in thread: few questions about solar power....

    Thanks that's a simple explanation I'll remember
  • Post in thread: Dangers of lithium-ion batteries

    It kinda reminds me of this.
  • Post in thread: Where to buy LFP cells in Japan?

    Thanks I was starting to freak out some.
  • Post in thread: New here, component question

    With large SQL databases? Just type "usb hard drive corrupted on pi" into Google you will find out that your case is rare and usb powered hard drives crapping out is the norm.
  • Post in thread: Batteries

    Not by the looks of it I'm afraid I can't see any battery test function on either of these pictures so doing a simple DC voltage measurement means nothing a battery tester tests voltage under load (has a resistor to induce a load across terminals) a simple multimeter cannot do this.
  • Post in thread: Incompetence from Signature Solar & Solar Sovereign

    Good luck to the EU and US the rest of the world will continue to use Chinese PV goods just they won't have to run factories in other countries though not sure how tariffs will affect the Chinese companies making panels in Mexico.
  • Post in thread: Has anyone tried to use SRNE (Modbus ?) communication protocol with MakeskyBlue, PowMR or EASUN SCCs ?

    No I'm out of country atm but hopefully heading back today but working out the lambda write isn't high on my priorities for now sorry. It's working out the hex code and how to implement it on initial boot up in my case as it seems this would likely be the most reliable way to get results.
  • Post in thread: Doubling up cables

    You should know better than this even two conductors the same size won't become one, temperature coefficient plays a large role and as this is in a battery box you should expect both conductors to carry 166% of a single conductor even two conductors spread 30cm apart should be thought of as...
  • Post in thread: Beware of Amazon's class t fuses

    I highly doubt that most battery boxes being sold are anything other than mild steel. Edit: also thanks for the melting point list I got °c and °f mixed up for stainless seems it's not as good as I first thought
  • Post in thread: Question About Preventing Grid Backfeed

    Mines always in sub I think it's worth experimenting anyway even if the data has already been proven.
  • Post in thread: FBI warns of Solar System Cyber Threat

    Don't think so but you can use windows as solar panels https://www.solarwindow.com/
  • Post in thread: What was your most interesting recent non solar project?

    I'm guessing 2 inch and he's using 2x4 to support it.
  • Post in thread: MC4 scam buster - what you have all been waiting for

    That's why your not supposed to mix them mc4 is just a term we use to describe the connector for ease in reality each manufacturer has its own name if they don't, they break Stabuli's trademark. It's a crapshoot brought on by stabuli really, that's why boron is so adamant on calling all other...
  • Post in thread: Beware of Amazon's class t fuses

    Yep aswell as appropriate insulation or you've made a giant Hannibal pizza oven
  • Post in thread: Next Project is this the correct way of thinking?

    So i set up my small array to handle essentials, I only went with two 380w panels mainly for the voltage as this was a greater PV power production than I actually needed. Now there's talk in the house of a larger system to power everything but grid tie is more trouble than it's worth here so...
  • Post in thread: Thoughts on a mineral oil bath?

    As I go deeper down the rabbit hole and now looking at the future and my next project I starting to be torn between FLA and Lifepo4, I was thinking FLA and Purley battery backup. Silly thing is here in Asia it's actually far cheaper to go down the Lifepo4 route but the hurdle being temps...
  • Post in thread: FBI warns of Solar System Cyber Threat

    Touche
  • Post in thread: Battery Lithium Manufacturers sues YouTuber who tested batteries for 3 years with Defamation

    Any idea which report I should be viewing?
  • Post in thread: Powmr 2KVa 12v charge current higher than programmed

    Sorry I thought it was 7% so I shouldn't be worried at all and it's actually charging at a reasonable rate?
  • Post in thread: Noob Installation Question (UK): Growatt SPF 5000 ES AC input 50a circuit breaker

    Im not sure I got in the notion it was going to be placed in the office though it's hot and humid so my brains melting ATM Im on my phone I just select numbers and symbols and hold down the number 2 I can do Ω also by holding down π
  • Post in thread: Any Thermal Management Issues with Deye SUN-16K-SG01LP1-EU?

    API grabs are never that good or secure, personally I'd go with a hacked modbus like Deye.
  • Post in thread: Trump

    First reported case was in Thailand I caught it literally a few days after when doing a visa trip to loas (the sandwich country between Thailand and China) before the boarders closed. My sister in law is a doctor here and another sister is the head pharmacist for the nearest main hospital so...
  • Post in thread: Thoughts on a mineral oil bath?

    Not that expensive whatever the option of cooling is tbh. I'm looking at $83 a kWh for Lifepo4 or $125 a kwh for FLA still haven't worked out my total usage (currently at around 20kwh for a whole day but it's not that hot) and how much I need to oversize the battery(any suggestions or just go...
  • Post in thread: Help! Anyone have experience with Sunket??

    Just to clarify the nominal voltage on the battery is incorrect it should read 576v volts and the dimensions seem completely irrelevant I'd recheck with the supplier and get them to verify exactly what battery your getting. Only other thing is the price of the inverter seems very cheap I'd...
  • Post in thread: Home Assistant and automating based on SOC

    You could just manually run the automation or as suggested above make an template entity to use temporary instead of soc.
  • Post in thread: FBI warns of Solar System Cyber Threat

    It took me 4 hours to water my garden during the dry period via hose pipe managed to cut it down to 2 hours with simple sprinklers and taps but I still had to check to see if the ground actually needed the water and when to add fertilizer etc now it's automatic and I can check the system 9000km...
  • Post in thread: Could plastic bottle insulation combust in summer heat if used to insulate roof?

    Same B&Q site you shared Personally I would have cut the closed cell as close as possible then filled any gaps and stuck it with a can of low expanding pu foam Shop around and do your research the polyester insulation seems to be extremely expensive compared to rockwool, don't let the very...
  • Post in thread: few questions about solar power....

    He shops on Lazada it's full of sinopy, CATL, CALB cells and Daly bms's. 12v 100ah would be about $120 then a 40amp 100voc epever is about $65
  • Post in thread: EPever Tracer 4210AN and 340W panel not giving more than 40W output?

    What's the battery SOC/voltage currently? Do you have any loads on the system? Not trying to discount you may indeed have a problem but this might be normal behaviour for the mppt depending on these factors. If your battery is at full charge the epever might just be in float and only topping...

diy solar

diy solar
Back
Top