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  • Want to build a utility room extension to house. Parents are adamant we don't get a permit or get the county involved. Thoughts?

    Grew up off grid. House is a converted two story three bed barn that is quite nice, but my parents claim much or the work was done after permits were issued in the late 80s. They added additional windows as well, the house had a lot of windows, some or which were not permitted. So we want to...
  • Pulling cable through 300' old irrigation tubing?

    I have a 300' of mostly black flexible 3" irrigation pipe that currently has two 4 gauge wires that I want to add two new 10 gauge wires too (smaller gauge due to higher volts). The 300' comes with a good amount of elevation as well. My plan is to go to the bottom, dig up the conduit so I can...
  • Making nested series of strings of a series, does this get around shading issues?

    Woke up in the middle of the night thinking about this, had trouble searching for my idea and ChatGPT seemed to think it was ok/possible (whatever that is worth). My original plan was 2 strings of 8 panels, which equates to 12a and 278v. In mornings there is a passing tree shadow that falls...
  • Any New Upcoming MPPT Solar Charge Controllers?

    I love the newer charge controllers with high input voltages, multiple trackers and high input amps like the Midnite Barcelona or the EG4 Flexboss Hybrid Inverter. Are there any new ones coming out that fit these?
  • How to connect 12v light system to new EG4 12000XP?

    I'm upgrading my parents old system which used an epanel and a DC-DC 48v-12v converter to manage all the 12 lights in the house. How can I hook this into the 12000XP? Previously our epanels DC Input side has the load coming off that. The only thing I see on the 12000XP is the two DC...
  • Does it matter where in a string the breaker is if there is a gap between panels?

    I have a 20 foot (3 meter) gap between two sets of 4 panels. Does it matter where I put the outgoing box?
  • Intersolar EU: Any new releases/products?

    It's midway through intersolar but I don't really have any way of following the news. Any good coverage of it? I'm looking forward to hearing if there are any new products or releases. So far I've seen this...
  • Self hosted monitor data for EG4 inverters?

    Just curious if anyone else knows much about self hosting or gathering data from EG4 products? I did find this project: https://github.com/gonzalop/wombatt But curious if there are others?
  • Does EG4 12000XP handle Float correctly?

    A bit confused for how our EG4 12000XP is handling "float". The current settings are for charting at 59V and float at 54V. As you can see, while the 48v lead acid battery does get charged up to 59, or mostly 58.9, it ends up hovering there the whole day. In the past we would usually charge like...
  • 12000XP not compatible with 48v lead acid batteries? Unable to set absorb or equalize above 59v

    Previously I thought the issue was just some settings, but after calling Signature Solar they told me that 59v is a hard limit set by NEC standards. This causes an issue because the 48v lead acid battery manufacturer states the default absorb charge should be 60 and more importantly the...
  • How to calculate Amps for strings of bifacial panels?

    I am trying to calculate the max amps for breakers and for wire guage estimates, but I realized the way I was calculating it for bifacial lead to some questions. First, is it correct to calculate max amps leaving panels as watts/voltage? While this makes sense for the rated 440W, for the...
  • Which of these strings is best for a shadow?

    I have 16 panels that I can arrange on a single large array. There are several tree shadows that are present in the Winter during the morning until 11AM. The panels are facing south, and the shadows pass from the left to the right, with some shadows only touching the right. Given this, which of...
  • Worth it to upgrade from Magnum Energy MS-PAE to EG4 12000XP?

    Trying to complete an upgrade for my parents setup. I put most of it in about 10 years ago, and recently I about quadrupled the PV for them but now need to upgrade the solar charge controller from Midnite Classic 250 to a charge controller(s) at higher voltages. My constraint, other than money...
  • 8% voltage drop and running 80amps in 4 AWG for 300'

    I have panels that at a maximum would be max 67amps and 80amps including bifacial. The Ampacity chart shows that 80 is a bit close to 75c. Additionally, my calculation is that I would see 10.09v 8% voltage loss across the 300 feet from panels to Midnite Solar Classic 250 MPPT charge...
  • Can a 120v generator be plugged in to the L1 port of EG4 12000xp

    I'm looking at hooking up an existing generator to a new EG4 12000XP which I believe (I hope I was not mistaken about this!) that it supports 120v OR 240v, though after reading a bit more, I'm unsure now. When looking at the 12000XP generator hookups we have: L1, L2 Neutral and Ground. The...
  • Morningstar Tristar 600V vs cheap EG4 500V MPPT Charge Controller are they the same?

    I'm looking for a new charge controller that can handle max VOC > 470V. So far I've found these two models, but they have a very different set of prices, so I'm not sure if I'm missing something that the Morningstar has that the EG4 does not. $989 - 600V - Morningstar Tristar DB TR GFPD Comes...
  • Can I just pull 120v from a 120/240v EG4 inverter with L1/L2 AC out?

    Similar to another thread I just posted, I'm realizing I made some assumptions and am now learning some new things: https://diysolarforum.com/threads/can-a-120v-generator-be-plugged-in-to-the-l1-port-of-eg4-12000xp.96967/ The house has 120V ONLY, there is no 240v. Is it OK to connect my AC...
  • Do I need blocking diodes?

    I will have 3 strings of 4 panels. 1 string has a total voltage of 138.84V (link) and 2 older strings have a voltage of 146V. Likely all three will come together in a combiner box. Either in a DIY style or maybe something more presentable like this...
  • Help! New EG4 12000XP: Unattached dangling neutral wire?

    Was going about hooking up the new inverter and realized there was a neutral lug already loose (most are fully tightened when empty). Further inspection found the thick black wire (with a bit of white tape) coming from up in the box. It had a nice square ferrule on the end, hadn't been squished...
  • 12000XP Firmware update caused stuck in standby mode

    Well, finally finished getting the new inverter setup,. Family clamoring for AC power, time to turn it on. Seems like it's working at first, just no generator charging with "gen boost" setting, which needs updated firmware. Update the firmware then it's stuck in standby mode. Standby mode...

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