diy solar

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  • Lean-to as solar mount

    I've had my first of 3 sets of 14 panels on my house for about half a year. Finally got around to putting up my second set. We live in basically a holler, so raising the ground panels was the goal. Decided to make a lean-to to accomplish this. Used the same Unirac mounting that I used on the...
  • First of two battery builds

    Sorry the pictures are blurry, my phone just sucks. This is a standup case with 16 304ah cells. Cabinet is a knockoff of Vevor 16 X 24 X 12 deep. Seplos 200a bms, 300a T-class fuse, and BEP Marinco disconnect, which has been confirmed safe to use on a 48V system. Not in the pictures is...
  • Abbreviations

    EG4 has an abbreviation chart in their Chargeverter manual, thought it might be helpful.
  • DIYPOW Battery Purchase Review

    In April, I ordered 32 Cat302ah cells from DIYPOW. At the time, there was quite a bit on the forum about people not being happy with purchases from a couple of the common suppliers. So, I decided to shop around. I had put the cells in my cart for DIYPOW, and left them there. The next day, I had...
  • Sol-Ark 15K sell limiter

    When using grid selling under work mode, there is a setting for max sell power. When using this, it appears to send around 600 watts more than what I set it for. This isn't a big issue, I'm simply playing with it until I get my batteries. If I set it to limit power to load or limit to home, that...
  • Merry Christmas and Happy New Year to ALL!

    Wishing everyone a very merry Christmas and an amazing new year. This was a great year for me, in that I took the plunge into solar and came out with success thanks mostly to this site (Thanks Will) and the amazing people on here who constantly offer help.
  • Sol-Ark and batteries

    I really have spent dozens of hours reading the threads. The more I read, the less I understand. Mostly because many of the threads are about specific situations, or go off in tangents on how to make things work for a specific situation. So, I'm hoping some of you can answer some general...
  • Sol-Ark battery settings not taking.

    Sol-Ark 15, two batteries with 200 amp Seplos bms. Played around with some of the Seplos settings. At some point, the settings in the BMS app changed my Sol-Ark charge settings. For Float, I'm trying to set 55.7v as per the latest example in the Sol-Ark manual. It takes the setting, but then...
  • Sol-Ark 15K Generator Transfer Time

    I had a Generac 10k LP generator attached to my house before installing solar. Removed it during full remodel of the house. I'm going back and forth between AC coupling and the generator, as I don't see how to have both. One of the considerations is transfer time for the generator. In it's...
  • Still trying to understand breakers/fuses

    General question. Do breakers need the same overage as fuses? I've read that to avoid issues with blowing fuses on batteries due to surges to step it up 1.25X. But is that necessary for breakers? I get that I can just reset the breaker, but is the breaker as likely to trip as a fuse is to blow...
  • NY Tax Credit

    Reading the instructions for form IT-255 for the 25% tax credit, it appears that off grid/non-sellback folks don't qualify? Anyone from NY find a way around this? NY Tax credit form "If the solar energy system equipment produces electricity, you must enter into a net energy metering contract...
  • Spacing between panel rows

    Putting up 3 separate panel batches on 3 different roofs, each will have 2 rows of 7. Using Unirac system. The clamps to mount the panels are U shaped, one inch wide with about a 3/16" lip on each side. So, side to side spacing is fixed to the clamp. I assume expansion isn't an issue, as the...
  • Is there a proper way to pull one feed directly from grid?

    Setup is a Sol-Ark 15K fed directly from meter (with disconnect in between). I have the whole house on load. Because of this, I don't always notice when grid is down. They make simple devices that will alert you when power is out, but obviously they won't work on a normal outlet. So, I'd like to...
  • Seplos Battery Monitor

    I've got 3 Seplos 10E with BM2. Running version 2.1.8. Everything works. They are all connected to each other via RS485. Bluetooth works with all 3 batteries. But, with battery monitor, I can't see the first battery (Pack 00) I can see the second and third batteries (Packs 01 and 02) There is no...
  • Outage Notification

    Last night we had an outage for about an hour and then 2 short 1 minute ones shortly after the first was restored. The only way I noticed the first time was because the lights flickered when the heat pump furnace came on. Are any of you using a separate app/devise to get outage notifications...
  • Sol-Ark Ethernet Connection

    I've got my Sol-Ark 15K set up with an ethernet cable because the router wouldn't pick up the dongle. Had the same issue with the pi for solar assistant. Both work fine on ethernet. Question is, I can see the pi in my router, but I don't see the Sol-Ark. Shouldn't I be able to see it? Obviously...
  • Sol-Ark 15K and Seplos

    Just want to verify with anyone who has a Sol-Ark15K and Seplos. Connected my battery. I can run off battery with grid disconnected and solar off. I believe I have closed loop, as the below screen updates in sync with the seplos software, and the triangle with an ! inside of it under the battery...
  • First battery drain

    Sol-Ark 15k with Seplos BMS My understanding is that I am supposed to let the battery drain the first time to let the bms learn the full range of the battery. The only way I can understand to do this is to be off grid with no PV. How low do I let it go? To my normal minimum charge, or till it...
  • Smart Meter Opt Out

    In my area of western NY, we received a postcard with exciting news, our smart meter is coming. We contacted them to let them know we are opting out. They will gladly do that for a "small fee" of $11 something a month. That got me wondering about if people fought the fee. Doing some research, I...
  • 48V Disconnect

    I've seen the question asked, but never an answer. Many people are building 48V batteries. I'm building 2 304AH batteries. At this point, I have two 200A Seplos BMSs, two 300A T class fuses, and a Sol-Ark 15K, which has 2 battery connections that have 200A each breakers, but max throughput is...
  • Pre-charging before top balance

    Watched Will's video on top balancing. He mentioned that if the batteries are not fully charged, you can charge in groups of 4 in series with a regular charger first. My 304ah batteries all came in at 3.291v, so I would need a month..... What is a safe amp setting for charging with a regular...
  • Half price electric cars

    Fisker is slashing their prices nearly in half on their top model, over 35% on their lower end to avoid going under. Check this out
  • Adding batteries and layout

    I've got 3 304ah batteries with Seplos V2 BMSs (passive balancing) below my inverter. They run individually to a busbar, then using both breakers in my Sol-Ark 15k to connect the inverter to the busbar. The 3 batteries are connect via comms, and the master battery connected to the inverter...
  • Splitting PV at the inverter?

    Can the feed for the solar panels be split at the inverter to use 2 MPPT? I've got to run around 100 feet, so would like to do it in one set of wires. Sol-Ark 15K will only do 6.5kW / MPPT | MAX 500VOC PV 26A self limiting. The panels I'm looking at are 450W 41.25V (Voc) 34.67V 12.98 amps, max...
  • Fireproofing Battery Container

    After reading 20 pages of "house burned down", I'm not as secure about having my batteries in my living space as I would like to be. Fire inspector said the cause was a fuse arcing after blowing, I say that it more likely the probable cause, not definitive. I have class T fuses on each battery...
  • Adding Hybrid With Existing Generator

    I have a 10K Generac generator ( about 15 years old) at my house. I imaging it is the standard setup, separate panel that is connected to the main panel box. Power for both panels is on when grid is up, ATS engages when generator comes on leaving power to just the generator panel. We really...
  • Need metal box idea

    I'm building a 48V battery in 4 segments. This is so that I can disassemble it to move it from the house inverter to my camper inverter when I go camping. I need metal boxes that are 8 X 8 X 16 for each segment. These boxes will be stacked on top of each other, so the boxes need to either have...
  • Sol-Ark 15K AC and DC Coupling

    Sol-Ark 15K, connected directly to the grid. I'll have 19.1kW of DC PV connected when done. I have a 10K generator that came with the house that I was going to connect to gen in, but as I add batteries, I'm looking at using the gen in for AC PV instead. I believe from what the manual says is...
  • Where is your inverter installed?

    After commenting in a thread about inverter noise, I wonder....
  • Heat sink contact

    Installing Seplos BMS into a steel cabinet. In order to get the leds and dip switches even on the far side, the heat sink touches the cabinet. It appears to be isolated. I've read about putting thermal pads between the heat sink and steel. This has a fairly thick paint coating on it. 1 - Can...
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