diy solar

diy solar

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  • Bifacial panels really work!

    We had a good snow yesterday. I have 400 Watt Canadian Solar bifacial panels ground mounted. So far, this winter, if I see 2000 watts out of each string of 7, I am happy. With all this snow and reflection, I am seeing 2800+ watts out of each string. Cool.
  • 95% savings on electric bill with solar (and some help)

    This past November, I installed an 18KPV, 12Kw of panels and 60 kWh of batteries. This past month, I actually ran everything the way it should be run. I have 1 to 1 net metering, and previous months I was charging batteries from grid, then running from batteries, and basically costing myself...
  • North facing panels work great, for me

    About half of my main solar panels are on a north facing roof, very shallow pitch. From September to April, they don't do a lot, but April through September, they rock. I live in a very wooded area, so my south facing panels get good sun for a lot of the day, but after 2 PM, they really drop...
  • No magic smoke, but no $ savings because I played with AC charging.

    Not a magic smoke post, but a newbie error I made, hope to educate other newbies. I went live with Solar and Batteries in November of 23. I had several thoughts in my head, re batteries. 1 - It's cool to run off batteries 2 - I need to fully cycle batteries, to keep them healthy 1 is...
  • My first build, go big or go home

    As an intro, I figured I would post my project. Background: A few months ago, we decided to go solar to try and remove our electric bill, and provide whole home UPS not relying on a generator. After getting quotes from some local solar companies, and looking into DIY, the price difference...
  • 18kpv + Growatt 11 US AC Coupled good and ?

    So I finally got around to bringing my Growatt 11 up as an AC Coupled addition to my 18 kpv. Today's project was putting up cement board, installing a 50 amp breaker/disconnect, mounting the Growatt, running 6 Gauge wire between 18, disconnect and Growatt. Took a couple hours, but the physical...
  • I am a solar nerd. Eco-worthy 25w x 2 on my side by side utv

    OK, so I am a nerd. I purchased a couple 25 watt solar panels, a controller and brackets from eco-worthy. I jury rigged the panels into 2p. Controller can handle 10 amps, each panel is 1.5 or so, so no issue. Terrible little pwm controller, but this is for fun, so I really don't care. Wires...
  • 100% SOC batteries taking current, randomly

    I have 12 LifePower4 batteries connected to my 18 kpv. I have 1 to 1 net metering, so I only draw these down to 85% on a daily basis. In the AM, on a sunny day, I get to 100% soc pretty quickly. One odd behavior I am seeing is, throughout the day, for a few minutes at a time, there will be...
  • Eg4 6 batteries 20kwh capacity?

    I'm looking at the mobile app for my 18 kpv. I have 6 eg4 batteries and am using the eg4 hub. App is showing 6 batteries, but is showing capacity of 20 kwh, instead of the expected 30. I assume I am looking at something incorrectly, or misunderstanding something. Any guidance?
  • Beginner mistake, purchased solar, then applied for permits.

    MF. I made the cardinal error of buying my solar stuff, then applying for permits, etc., because i figured it would be easy. My electric company is slow, like they all are. Took 3 weeks after my application, for the application to get approved to go to engineering for review, they have up to...
  • RGM on an 18 KPV in whole house mode

    I've got an 18 kpv set up as a whole house feed. In order to get SRECs, I need. revenue Grade Meter, measuring solar output In a normal back feed setup, this RGM would go between the inverter and the back feed breaker. But in my config, I can't figure out where I would put the RGM. Can't...
  • EG4 Lifepower4 Hub settings with 18kpv

    I did a search and did not come up with an answer. It is my understanding that the Hub voltage settings somehow control the charge settings from the 18kpv. I will assume this is accurate. There is also an AMP setting on the Hub. Currently my hub is set to 50 amps, but I have the 18 KPV set...
  • Smallest setup that will charge 48 volt batteries

    Short: What is the smallest solar setup I can build to charge 48 volt Lithium batteries? Longer: I have a cool side by side that is electric. I upgraded the batteries in it to 48 volt Lithium, each battery is 48 volts, as opposed to the 8 6 volt golf cart setup it came with. Super happy...
  • LV6048 + Canadian Solar 400 panels + eco-worthy 48v 50 ah = sub sub sub panel power

    To begin my solar journey, I purchased an MPP LV6048 to try things out. Now I have my 18, batteries, etc. running the whole house. So the LV sat up at my outbuilding doing nothing, and price has dropped so much it's not worth selling, to me. Well, I have 3 left over Canadian Solar panels...
  • North facing panels do better on cloudy days than south facing. Weird.

    I have some north facing panels in my config. Pretty shallow pitch on the roof, so almost flat, probably 15 degrees. Anyway, they are there to capture summer sun, mid day. Obviously they don't produce much half of the year. But an interesting thing I have seen is that on cloudy, overcast...
  • SOC difference 1st time with 2nd bank

    I just added a second bank of 6 Lifepower4 batteries, brining my total to 12. I added a Victron Lynx as the bus bar. Each set is in an EG4 cabinet. Each set is wired to the Victron with + on top of cabinet bus and - on bottom. I connected everything at 53% SOC. I then ran AC charging and...
  • 18kpv pulling from grid for a few hours, unexpectedly

    So today, from about 11 AM to 6 PM, my 18 was pulling from the grid, even though I had plenty of battery, and it was pulling from battery as well, but a flat 3-600 watts, the whole time. Loads varies between 1 and 4 kw, but when the load spiked, more grid was used. I decided to try and sé what...
  • Does the EG4 monitor site update after being offline

    Just a random question. When you lose Internet, I know the data is obviously not flowing to the EG4 monitor site. But does the data from the day upload when connectivity is re-established? If I remember, the time based info does not show up, so if you are looking at a given day, and Internet...
  • EV SXS to run house

    Hello everyone. Newbie here. Some background on my project: I have an electric side by side. Intimidator EV Classic. https://intimidatorutv.com/classic-ev/ It comes with 8, 6V Lead Acid batteries. I am replacing those with 8, 48V Eagle batteries from Bigbattery.com...
  • LifePower4 Batteries in alarm state, 18KPV and Comm Hub, no alerts

    So like many of you, we are in a cold snap. I have 12 Lifepower4, connected through Comm Hub, to my 18kpv. I noticed my batteries charged up to 86% and stopped, but wouldn't discharge as I have them set to charge to 97% before charging is complete. I looked on the app and web, and no...
  • WTF Home Depot? 14/30 cord end $52?

    A few months ago, I bought a $50 30 amp cord from Harbor Freight. Cut off the female end, and wired it into my 18 Gen port. Plugged in my 8750 inverter generator. Had a power outage and ran the Genny. Fluctuating loads and it would bog Genny. Ok. Went the correct route and got a...
  • 18KPV Charge First (PV) not working right

    I've got my 18 KPV set to charge first(PV). According to what I see and understand, the PV should charge batteries first, then load, then grid. (I have zero export, so the last part doesn't matter) I've got my battery floor set to 40% and max to 99%. Battery is at 40% Right now I am...
  • EG4 18KPV AC Couple design question (Adding second 18)

    I've reach ed out to SS Design Team, but figured I would run this by the knowledgeable folks here. I have an 18 KPV setup as whole home, using supply side feed, with EG4 batteries. All 4 MPPT are populated, and effecticely maxed (not KW, but layout wise) at 12 KW of panels. I want to add more...
  • Short Cycle LifePower4 batteries

    I searched and did not find a definitive answer or consensus. I have an 18, with 12 LifePower4 batteries. My utility is 1 to 1 net metering. So using my batteries makes no financial sense, since I lose efficiencies charging and discharging, I actually cost myself money when running on teh...
  • 20k phantom load and lost all settings and lost AC Couple on 18kpv

    OK, this is a weird one. My 18 has been wonderful so far. Today, out of nowhere, a 20k load appeared and continued for 2 hours. 20k would be everything in the house running at the same time, which wasn't the case. Trying to figure it out, I started turning off breakers, with no change. I...
  • WTS MPP LV6048 in PA

    I have what is basically a brand new LV6048. I purchased it April of this year and used it as a test bed for a solar and battery setup. Looking for $900 local pickup, near Easton PA
  • AC Couple % spread question 18 KPV and batteries

    TLDR - Should I set my Start at 85% and Stop at 90% in the 18 KPV for AC Coupled setup? I searched and could not come up with a definitive answer. I have my 18 KPV (whole house, feeder) AC Coupling with a Growatt 11.4 ( setup is working well) I have 12 Lifepower 4 batteries. In the AC...
  • Victron Lynx + Chargeverter + 2 banks wiring question

    Current setup is an 18 KPV with 6 LifePower 4 batteries. I recently received another 6 batteries and a Lynx Distributor from SS. Can't wait to get the cables I ordered, so I can hook this up (grrr....). Anyway, I want to add a chargeverter to the mix. My question is does it matter how I...
  • Well just poop. Missing cables = no new batteries

    Just whining a bit. I ordered an extra set of 6 Lifepower4 batteries and cabinet, along with a Lynx power distributor and 72" cables. Everything came, quickly, but no cables. Good news is everything is racked and mounted. Whiny bad news is, since it is Thanksgiving, I assume this won't be...
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